Biology Toughest Practice Quiz: Test!

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1. The scientific study of heredity is called 

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Biology Toughest Practice Quiz: Test! - Quiz

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2. The primary function of DNA is to 

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3. The organelles in plant cells that contain a green pigment are the 

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4. If an individual possess two recessive alleles for the same trait, the individual is said to be 

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5. Homologous structures in organisms provide evidence that the organisms 

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6. Each organism has a unique combination of characteristics encoded in molecules of 

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7. Atoms are composed of 

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8. The ancestors of today's land plants were probably 

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9. Polar molecules such as water have 

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10. Which organic molecule below is classified as a carbohydrate? 

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11. The process whereby plants capture energy and make complex molecules is known as 

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12. Suspended in the fluid stroma of chloroplasts are 

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13. The "father" of genetics was 

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14. ALL active transport systems required this molecule to function 

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15. The surface of Earth is protected from damming ultraviolet light by

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16. Anatomical structures that appear to be derived from a functional strutter in an ancestor, but that current do not served as unimportant function, are called 

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17. The function of tRNA is to 

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18. Which of the following is not found in DNA?

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19. During translation, a ribosome binds to 

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20. The smallest units of life in all living things are 

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21. The organelles associated with photosynthesis are the 

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22. Acidic solutions have a pH that is 

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23. Amino acids are monomers of 

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24. Nucleic acids include 

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25. When tow solutions in different concentrations are separated by a membrane, there is a difference in concentration across the space. This is known as a 

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26. If a plant's flowers are very colorful and produce nectar, the plant is probably pollinated by 

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27. A calcium ion channel will allow 

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28. Plasma membranes 

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29. A pathogen is an agent that is 

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30. The names of the scientists that discovered that DNA is a double helix are 

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31. RNA 

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32. Diffusion takes place 

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33. Molecules that can simple diffuse through the cell membrane (pass throng the lipid bilayer) are typically 

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34. The sun is considered the ultimate source of energy for life on Earth because 

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35. Negatively charged particles that move around the outside of an atom's nucleus is called 

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36. The process by which water passes into or out of the cell is called 

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37. The phenotype of an organism 

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38. In order to fit within a cell, DNA becomes more compact by 

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39. The smallest particle of carbon that can retain the chemical properties of carbon is 

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40. Which of the following bacteria are thought to be responsible for establishing Earth's oxygen-rich atmosphere?

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41. Only eukaryotic cells have 

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42. Enzymes

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43. Without enzymes, the chemical reactions in the body would 

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44. Autotrophs are organisms that can 

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45. Many animals have a head that is located at the _____ end of their body and a tail that is located at the _____ end of their body. 

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46. When light strikes an object, the light may be 

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47. Mendel obtained his P generation by allowing the plants to 

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48. The haploid form in a plant's life cycle is called the 

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49. The age of Earth is estimated to be approximately 

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50. Carbon atoms are fixed into organic compounds in 

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51. The size to which a cell can grow is limited by its 

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52. Which of the following is a carbohydrate? 

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53. Pseudopodia are used for 

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54. When an atom loses electrons, it becomes 

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55. When crossing-over takes place, chromosomes 

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56. Each of the following is a type of RNA except 

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57. One difference between prokaryotes and eukarotes is that 

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58. The dispersal of ink in a beaker of water is an example of 

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59. Animals probably evolved from 

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60. Viruses 

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61. Where does energy required for the Calvin cycle come from? 

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62. Gram-postivie bacteria differ from Gram-negative bacteria in 

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63. Carbohydrates 

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64. All the following are carbohydrates EXCEPT 

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65. Buffers 

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66. Which of the following is a characteristic of prokaryotes? 

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67. As a result of diffusion, the concentration of many types of substances 

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68. The phloem in a plant 

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69. Molecules that are too large to be moved across a cell membrane can be removed from the cell by 

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70. Which of the following is most likely a vestigial structure? 

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71. All mater in the universe is composed of 

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72. All the following are lipids except 

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73. In which of the following is a cell's ATP produced? 

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74. Proteins are made on the 

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75. All of the following are found in both plant and animal cells, except 

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76. Plant cells have a large-membrane bound space in which water, waste products, and nutrients are stored. This place is known as the 

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77. On what basis have bacterial traditionally been classified?

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78. A group of similar cells organized into a functional unit is called 

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79. Symmetrical phyla include all the following except 

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80. The breakdown of polymers involve 

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81. The bond formed when two atoms share a pair of electron is called a 

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82. Atoms become more stable when they form compounds because 

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83. Monocots have 

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84. Organic compounds contain 

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85. At some state of their development, all chordates have a flexible rod of tissue along their back called the 

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86. Which of the following is not a vector of viral diseases? 

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87. The sodium-potassium pump usually pumps 

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88. The electrons of an atom 

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89. Which of the following is an acquired human characteristic? 

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90. Abiogenesis is 

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91. Foods that contain mostly carbohydrates include all the following EXCEPT 

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92. The Golgi apparatus is an organelle that 

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93. The X and Y chromosomes are called the 

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94. Which of the following is not a vertebrate adaptation to life on land?

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95. When electrons of a chlorophyll molecules are raised to a higher energy level, 

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96. Viruses are considered nonliving because 

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97. Which of the following has been the most successful at fighting viral diseases?

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98. RNA 

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99. The law of segregation explains that  

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100. Damaged DNA is repaired by 

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101. A neutral solution has an equal number of 

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102. Hookes's discovery of cells was made by observing  

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103. One important organelle that helps maintain homeostasis by moving supplies form one part of the cell to the other is the 

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104. All protist 

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105. Scientists have inferred that the first cells were 

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106. Which of the following is not ​a way of preventing a food borne illness at home?

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107. When tested with a Gram stain, Gram-positive bacteria are stained 

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108. Which of the following gases was thought by Oparin to be part of Earth's early atmosphere? 

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109. What product of the light rections of photosynthesis is released from the plant and does not participate further in photosynthesis? 

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110. A cross between an individual heterozygous for a trait and an individual recessive for the trait will probably produce offspring with 

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111. Studying a picture of a cell taken within an electron microscope, you find that the cell has no nucleus and no mitochondria, but it does have a plasma membrane and a cell awl. You can conclude that the cell is probably a(n)

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112. In an ionic bond, 

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113. Which of the following is not part of a molecule of DNA? 

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114. The exchange of segments of DNA between the members of a pair of chromosomes 

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115. A substance that is composed of only one type of atom is called a(n)

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116. In plant cells, cytokineses occurs when 

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117. When a molecules gains an electron, it has been 

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118. A structure within a cell that performs a specific function is called a(n) 

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119. Plant cells 

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120. The formation of ADP and inorganic phosphate from ATP and water is an example of which kind of reaction? 

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121. Some land plants developed an internal system of interconnected tubes and vessels called 

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122. Which of the following is an example of a prokaryotic cell? 

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123. In plants, haploid spores are produced as a result of 

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124. The difference between RNA and DNA is in the 

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125. When atoms share electrons, it is called what kind of bond? 

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126. Sugar molecules can enter cells through the process of 

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127. Evidence that evolution occurs includes all the following except 

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128. Genetic drift is 

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129. Polysaccharides are 

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130. Energy is released when the bond between 

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131. The sugar in DNA is 

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132. Animals store glucose in the form of 

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133. Ridding the cell of material by discharging it from sacs at the cell surface is called 

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134. The role of accessory pigments in photosynthesis are 

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135. Carbon is different from many other elements in that 

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136. What happens when a chlorophyll molecules absorbs light?

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137. The sudden shift of horn that is often seen in the fossil record is explained by scientists as 

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138. Surface area is an important factor in limiting cell growth because 

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139. Flowering plants are classified as monocots or dicots acceding to their number of 

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140. The xylem in a plant 

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141. Chlorophyll is green because

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142. Which of the following does not expand energy? 

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143. The solution with a pH of 11 is 

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144. A water molecule is polar because its hydrogen and oxygen atoms 

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145. What function do the fruits produced by angiosperms perform?

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146. One difference between human body cells and bacterial cells is that bacterial cells have 

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147. At the end of the ETC in photosystem I, electron 

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148. Which one do you like?

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149. The number of covalent bonds a carbon atom can form with other atoms is 

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150. Euglena is an example of a protist that 

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151. The bonds between bases in the double helix are 

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152. Which of the following associations incorrectly describes an archaebacterium and its characteristics? 

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153. Inorder for protein synthesis to occur, mRNA must migrate to the 

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154. The structure that regulates what enters or leaves the cell is called the 

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155. When the volume of a cell increases, its surface ares

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156. A molecule that has a partial positive charge on one side and a partial negative charge on the other side is called a 

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157. If nondisjunction occurs, 

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158. Molecules of DNA are composed of long chains of 

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159. Examples of monomers include all the following expect 

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160. The double membrane surrounding the nucleus is called the 

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161. The diploid form in a plant's life cycle is called the 

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162. Atoms that have gained energy 

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163. Which of the following is not fungi a way that fungi can harm humans?

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164. Replication occurs 

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165. The bonds in the sugar-phosphate backbone of the double helix are 

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166. During transcription, 

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167. Numerous hairlike organelles that protrude from the surface of a cell and are packed in tight rows are called 

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168. What is the consequence of violating the Hardy-Weinburg genetic equilibrium assumptions?

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169. Separation of homologous occurs during 

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170. Plants store glucose in the form of 

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171. Autotrophic eukaryotes and autotrophic prokaryotes differ in that some autotrophic prokaryotes 

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172. The process by which a single-celled eukaryote engulfs a prokaryote is 

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173. Members of each pair of allele separate when 

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174. The structures of organisms that have similar structures but different functions are called 

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175. Regions of active cell division in plants are called 

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176. The role of chlorophyll in photosynthesis is to 

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177. A characteristic shared by all chordates at some stage of their development  is 

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178. Which of the following might be found in the cytoplasm of a bacterial cell?

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179. In which cycle(s) does viral DNA become integrated into the host cell's DNA?

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180. Which of the following enters a cell by active transport?

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181. The individual filaments that make up a mycelium are called 

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182. Which of the following types of RNA carries interaction for making protein? 

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183. The first organisms to evolve on Earth were most likely 

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184. Which of the following is not characteristic of facilitated diffusion?

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185. Lipids 

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186. Which one do you like?

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187. Fungi obtain energy 

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188. Before life arose on this planet, which of these gases was present in the atmosphere? 

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189. Which of the following is true of microshperes and living cells?

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190. Which of the following is found only in animals? 

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191. Analogous structures 

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192. Lipids are soluble in 

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193. Atoms with filled outermost electron levels tend to 

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194. Bacteria cells typically lack 

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195. The difference between anaphase of mitosis I and anaphase I of meiosis is that 

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196. The enzymes responsible for adding nucleotides to the exposed DNA template bases are 

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197. Which of the following human activities is most closely associated with the emergence of viruses not previously seen in humans?

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198. In their experiment, Miller and Urey produced 

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199. As an animal develops, the ectoderm becomes the 

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200. The term base and alkaline ​refer to solutions that 

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The scientific study of heredity is called 
The primary function of DNA is to 
The organelles in plant cells that contain a green pigment are...
If an individual possess two recessive alleles for the same...
Homologous structures in organisms provide evidence that the...
Each organism has a unique combination of characteristics encoded...
Atoms are composed of 
The ancestors of today's land plants were probably 
Polar molecules such as water have 
Which organic molecule below is classified as a...
The process whereby plants capture energy and make complex...
Suspended in the fluid stroma of chloroplasts are 
The "father" of genetics was 
ALL active transport systems required this molecule to...
The surface of Earth is protected from damming ultraviolet light...
Anatomical structures that appear to be derived from a...
The function of tRNA is to 
Which of the following is not found in DNA?
During translation, a ribosome binds to 
The smallest units of life in all living things are 
The organelles associated with photosynthesis are the 
Acidic solutions have a pH that is 
Amino acids are monomers of 
Nucleic acids include 
When tow solutions in different concentrations...
If a plant's flowers are very colorful and produce nectar, the...
A calcium ion channel will allow 
Plasma membranes 
A pathogen is an agent that is 
The names of the scientists that discovered that DNA is a double...
RNA 
Diffusion takes place 
Molecules that can simple diffuse through the cell membrane...
The sun is considered the ultimate source of energy for life on...
Negatively charged particles that move around the outside of an...
The process by which water passes into or out of the cell is...
The phenotype of an organism 
In order to fit within a cell, DNA becomes more compact by 
The smallest particle of carbon that can retain the chemical...
Which of the following bacteria are thought to be responsible...
Only eukaryotic cells have 
Enzymes
Without enzymes, the chemical reactions in the body would 
Autotrophs are organisms that can 
Many animals have a head that is located at the _____ end of their...
When light strikes an object, the light may be 
Mendel obtained his P generation by allowing the plants...
The haploid form in a plant's life cycle is called the 
The age of Earth is estimated to be approximately 
Carbon atoms are fixed into organic compounds in 
The size to which a cell can grow is limited by its 
Which of the following is a carbohydrate? 
Pseudopodia are used for 
When an atom loses electrons, it becomes 
When crossing-over takes place, chromosomes 
Each of the following is a type of RNA except 
One difference between prokaryotes and eukarotes is that 
The dispersal of ink in a beaker of water is an example...
Animals probably evolved from 
Viruses 
Where does energy required for the Calvin cycle come from? 
Gram-postivie bacteria differ from Gram-negative bacteria in 
Carbohydrates 
All the following are carbohydrates EXCEPT 
Buffers 
Which of the following is a characteristic...
As a result of diffusion, the concentration of many types of...
The phloem in a plant 
Molecules that are too large to be moved across a...
Which of the following is most likely...
All mater in the universe is composed of 
All the following are lipids except 
In which of the following is a cell's ATP produced? 
Proteins are made on the 
All of the following are found in both plant and animal...
Plant cells have a large-membrane bound space in which water, waste...
On what basis have bacterial traditionally been classified?
A group of similar cells organized into a functional unit is...
Symmetrical phyla include all the following except 
The breakdown of polymers involve 
The bond formed when two atoms share a pair of electron is called...
Atoms become more stable when they form compounds because 
Monocots have 
Organic compounds contain 
At some state of their development, all chordates have a flexible...
Which of the following is not a vector of viral...
The sodium-potassium pump usually pumps 
The electrons of an atom 
Which of the following is an acquired...
Abiogenesis is 
Foods that contain mostly carbohydrates include all the...
The Golgi apparatus is an organelle that 
The X and Y chromosomes are called the 
Which of the following is not a vertebrate adaptation to life on...
When electrons of a chlorophyll molecules are raised to a higher...
Viruses are considered nonliving because 
Which of the following has been the most successful at fighting viral...
RNA 
The law of segregation explains that  
Damaged DNA is repaired by 
A neutral solution has an equal number of 
Hookes's discovery of cells was made by observing  
One important organelle that helps maintain homeostasis by moving...
All protist 
Scientists have inferred that the first cells were 
Which of the following is not ​a way of preventing...
When tested with a Gram stain, Gram-positive bacteria are...
Which of the following gases was thought by Oparin to be part of...
What product of the light rections of photosynthesis...
A cross between an individual heterozygous for a trait and an...
Studying a picture of a cell taken within an electron microscope,...
In an ionic bond, 
Which of the following is not part of a molecule of...
The exchange of segments of DNA between the members of a pair of...
A substance that is composed of only one type of atom is called a(n)
In plant cells, cytokineses occurs when 
When a molecules gains an electron, it has been 
A structure within a cell that performs a specific function is called...
Plant cells 
The formation of ADP and inorganic phosphate from ATP and water...
Some land plants developed an internal system of interconnected tubes...
Which of the following is an example of a prokaryotic cell? 
In plants, haploid spores are produced as a result of 
The difference between RNA and DNA is in the 
When atoms share electrons, it is called what kind of bond? 
Sugar molecules can enter cells through the process of 
Evidence that evolution occurs includes all the following...
Genetic drift is 
Polysaccharides are 
Energy is released when the bond between 
The sugar in DNA is 
Animals store glucose in the form of 
Ridding the cell of material by discharging it from sacs at the cell...
The role of accessory pigments in photosynthesis are 
Carbon is different from many other elements in that 
What happens when a chlorophyll molecules absorbs light?
The sudden shift of horn that is often seen in the fossil...
Surface area is an important factor in limiting cell growth...
Flowering plants are classified as monocots or dicots acceding to...
The xylem in a plant 
Chlorophyll is green because
Which of the following does not expand energy? 
The solution with a pH of 11 is 
A water molecule is polar because its hydrogen and oxygen atoms 
What function do the fruits produced by angiosperms perform?
One difference between human body cells and bacterial cells...
At the end of the ETC in photosystem I, electron 
Which one do you like?
The number of covalent bonds a carbon atom can form with...
Euglena is an example of a protist that 
The bonds between bases in the double helix are 
Which of the following associations incorrectly describes an...
Inorder for protein synthesis to occur, mRNA must migrate to the 
The structure that regulates what enters or leaves the cell is called...
When the volume of a cell increases, its surface ares
A molecule that has a partial positive charge on one side and a...
If nondisjunction occurs, 
Molecules of DNA are composed of long chains of 
Examples of monomers include all the following expect 
The double membrane surrounding the nucleus is called the 
The diploid form in a plant's life cycle is called the 
Atoms that have gained energy 
Which of the following is not fungi a way that fungi can...
Replication occurs 
The bonds in the sugar-phosphate backbone of the double helix...
During transcription, 
Numerous hairlike organelles that protrude from the surface of a cell...
What is the consequence of violating the Hardy-Weinburg genetic...
Separation of homologous occurs during 
Plants store glucose in the form of 
Autotrophic eukaryotes and autotrophic prokaryotes differ in that some...
The process by which a single-celled eukaryote engulfs...
Members of each pair of allele separate when 
The structures of organisms that have similar structures but...
Regions of active cell division in plants are called 
The role of chlorophyll in photosynthesis is to 
A characteristic shared by all chordates at some stage of...
Which of the following might be found in the cytoplasm of a bacterial...
In which cycle(s) does viral DNA become integrated into the host...
Which of the following enters a cell by active transport?
The individual filaments that make up a mycelium are called 
Which of the following types of RNA carries interaction for...
The first organisms to evolve on Earth were most likely 
Which of the following is not characteristic of facilitated...
Lipids 
Which one do you like?
Fungi obtain energy 
Before life arose on this planet, which of these gases was present in...
Which of the following is true of microshperes and living cells?
Which of the following is found only in animals? 
Analogous structures 
Lipids are soluble in 
Atoms with filled outermost electron levels tend to 
Bacteria cells typically lack 
The difference between anaphase of mitosis I and anaphase I of meiosis...
The enzymes responsible for adding nucleotides to the exposed DNA...
Which of the following human activities is most closely...
In their experiment, Miller and Urey produced 
As an animal develops, the ectoderm becomes the 
The term base and alkaline ​refer...
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