Biology 100 Test 1

25 Questions | Total Attempts: 540

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Biology 100 Test 1

Biology is the natural science that involves the study of life and living organisms. It is a broad and complicated, but with enough practice and reading, it is more than interesting. Take up the quiz below and find out more.


Questions and Answers
  • 1. 
    While walking around campus, you notice that hummingbirds often visit red flowers. You wonder why hummingbirds often visit red flowers. You think that perhaps hummingbirds prefer red flowers to flowers of other colors. You conduct an experiment in which you give hummingbirds the choice of visiting a red flower, a white flower, and yellow flower must differ only in color for this experiment to work. In the scenario above, which represents a prediction?
    • A. 

      Hummingbirds prefer red flowers to flowers of other colors.

    • B. 

      Hummingbirds often visit red flowers.

    • C. 

      If hummingbirds prefer red flowers, then they will choose to visit a red flower over a white flower or a yellow flower.

    • D. 

      Why do hummingbirds often visit red flowers.

  • 2. 
    in the scenario above, which one represents an observation?
    • A. 

      Hummingbirds prefer red flowers to flowers of other colors.

    • B. 

      Hummingbirds often visit red flowers.

    • C. 

      If hummingbirds prefer red flowers, then they will choose to visit a red flower over a white flower or a yellow flower.

    • D. 

      Why do hummingbirds often visit red flowers.

  • 3. 
    Which of the following sets of features are common to all cells?
    • A. 

      They contain DNA, ribosomes, and mitochondria

    • B. 

      They contain DNA, chloroplasts, and mitochondria

    • C. 

      They contain DNA and ribosomes enclosed within a nucleus

    • D. 

      They contain DNA, ribosomes, and plasma (cell) membranes

  • 4. 
    In the diagram to the right, the 15% sucrose solution outside the circle is separated from the 25% sucrose solution inside the circle by a selectively permeable membrane that is permeable only to water. Which of the following would you expect to occur?
    • A. 

      A net movement of sucrose into the circle

    • B. 

      A net movement of water into the circle

    • C. 

      A net movement of sucrose out of the circle

    • D. 

      A net movement of water out of the circle

  • 5. 
    Which of the following is/are true of enzymes? Choose the best answer.
    • A. 

      They increase the energy of activation of a reaction.

    • B. 

      Their shape determines their function.

    • C. 

      Once they have been used, they are unchanged and can be reused.

    • D. 

      All of the above are true

    • E. 

      B and C are true, but not A

  • 6. 
    Chlorophyll is the pigment that absorbs solar energy during:
    • A. 

      The Calvin cycle

    • B. 

      The Kreb's cycle

    • C. 

      The light reactions

    • D. 

      Glycolysis

    • E. 

      Chemiosmosis

  • 7. 
    The light reactions occur in the
    • A. 

      Thylakoid membranes of a chloroplast

    • B. 

      Stroma of a chloroplast

    • C. 

      Cristae of a mitochondria

    • D. 

      Endoplasmic reticulum of skin cell

    • E. 

      Cytoplasm

  • 8. 
    Which of the following statements about membranes is false?
    • A. 

      Membranes can be described as a fluid mosaic of embedded molecules

    • B. 

      The appearance of membrane-bound organelles conferred many evolutionary advantages on the organisms that had them

    • C. 

      Membranes are selectively permeable so only some substances are able to move across them

    • D. 

      The primary membrane structure of a membrane is composed of a phospholipid bilayer

    • E. 

      Membranes are found only in eukaryotic cells

  • 9. 
    Which of the following statements about cytoplasm is false?
    • A. 

      The fluid filled space inside the inner membrane of chloroplasts contains cytoplasm

    • B. 

      Cytoplasm is found in all types of cells

    • C. 

      Cytoplasm is the fluid found inside a cell

    • D. 

      Glycolysis occurs in the cytoplasm of a cell

  • 10. 
    To be scientifically valid, a hypothesis must be
    • A. 

      Phrased as a question

    • B. 

      Based on faith

    • C. 

      Subjective

    • D. 

      The correct explanation

    • E. 

      Testable

  • 11. 
    Which of the following properties of water is not biologically important?
    • A. 

      It has high specific heat capacity

    • B. 

      It has a high heat of vaporization

    • C. 

      It is an excellent solvent

    • D. 

      It has a unique density behavior

    • E. 

      It freezes at 0°c

  • 12. 
    Which of the following statements is false?
    • A. 

      The folds of the inner membrane of mitochondria are called cristae

    • B. 

      The electron transport chain is composed of several molecules embedded in the cristae

    • C. 

      Chemiosmosis occurs on the cristae

    • D. 

      The inner membrane of the mitochondria encloses a fluid-filled space called the matrix

    • E. 

      Two (2) molecules of ATP are formed during chemiosmosis

  • 13. 
    How do prokaryotic and eukaryotic cells differ?
    • A. 

      Prokaryotic cells are more complex than euraryotic cells

    • B. 

      Prokaryotes contain DNA in their nuclei, but eukaryotes do not

    • C. 

      Eukaryotes contain membrane-bound organelles and prokaryotes do not

    • D. 

      Eukaryotes have cell walls and prokaryotes do not

  • 14. 
    Which of the following is true about the stromae?
    • A. 

      It plays an important role in cellular respiration

    • B. 

      It is where chemical energy is stored in molecules of glucose

    • C. 

      It is where the light reactions occur

    • D. 

      It is an organelle involved in the breakdown of fats

  • 15. 
    Which of the following statements about organelles is false?
    • A. 

      Organelles are membrane-bound structures found inside a cell

    • B. 

      Organelles are where many of the vital metabolic activities occur.

    • C. 

      The appearance of organelles was a huge evolutionary advancement

    • D. 

      Today, organelles are present in all types of cells found on the planet

  • 16. 
    Which of the following statements regarding simple diffusion is false?
    • A. 

      Diffusion is the result of the random movement of molecules caused by heat in the environment

    • B. 

      Diffusion requires no input of energy (other than heat) into the system

    • C. 

      Diffusion occurs when molecules spred from areas where they are more concentrated to areas where they are less concentrated

    • D. 

      Diffusion stops after equilibrium is reached

  • 17. 
    Exocytosis is :
    • A. 

      The movement of large molecules out of the cell

    • B. 

      The movement of large molecule in to the cell

    • C. 

      The movement of very small molecules out of the cell

    • D. 

      The movement of very small molecules in to the cell

  • 18. 
    Which of the following statements about alcoholic fermentation is true?
    • A. 

      Fermentation is an aerobic alternative to cellular respiration

    • B. 

      During fermentation, only glycosis occurs

    • C. 

      Fermentation produces the same amount of ATP as aerobic cellular respiration

    • D. 

      Fermentation produces O2 as a by-product

  • 19. 
    Which of the following is false regarding active transport?
    • A. 

      It is the most common type of transport mechanism in eukaryotic cells

    • B. 

      It involves the movement of small molecules up a concentration gradient

    • C. 

      It requires the cell to use ATP to transport molecules across a membrane

    • D. 

      It requires a transport protein to move molecules across a membrane

  • 20. 
    Which of the following statements about lysosomes is false?
    • A. 

      Lysosomes are membrane-bound sacs that contain disgestive enzymes

    • B. 

      Lysosomes are considered part of the endomembrane system

    • C. 

      Lysosomes are found in both prokaryotic and eukaryotic cells

    • D. 

      Lysosomes serve the general function of ''breakdown'' in a cell

    • E. 

      All of the above are true, none are false.

  • 21. 
    You are told that the cells on a microscope slide are plant, animal, or bacterial.You look at them through a microscope and see mitochondria, chloroplasts  and cell walls. You clonclude that the cells :
    • A. 

      Are plants cells.

    • B. 

      Are animal cells.

    • C. 

      Are bacteria.

    • D. 

      Could be either plant or animal.

    • E. 

      Could be plant, animal, or bacteria.

  • 22. 
    Insulin is a protein that is produced by pancreatic cells and secreted into the bloodstream. Which of the following options correctly lists the order of the structures of the endomembrane system through which insulin passes from its production to its exist from the cell?
    • A. 

      Rough ER, transport vesicles, Golgi apparatus, transport vesicles, cell membrane

    • B. 

      Rough ER, lysosomes, transport vesicles, cell membrane

    • C. 

      Rough ER, golgi apparatus, mitochondria, cell membrane

    • D. 

      Rough ER, cell membrane

  • 23. 
    Ultimately, all life on earth is sustained by the chemical energy produced though what process?
    • A. 

      Kreb's cycle

    • B. 

      Photsynthesis

    • C. 

      Alcoholic fermentation

    • D. 

      Glycolysis

    • E. 

      None of the above

  • 24. 
    Life is organized in a hierarchical fasion. Which one of the following sequences correctly illustrates that hierarchy as it moves from smallest and simplest to largest and most complex?
    • A. 

      Biosphere, ecosystem, community, population, organism, organ system, organ, tissue, cell, macromelcule

    • B. 

      Cell, macromolecule, tissue, organ, organism, population, community, ecosystem, biosphere

    • C. 

      Macromolecule, cell,tissue, organ, organ system, organism, population, community, ecosystem, biosphere

    • D. 

      Biosphere, ecosystem, population, community, organism, organ system, organ, cell, tissue, macromolecule

  • 25. 
    Which of the following processes produces the most ATP per molecule of glucose?
    • A. 

      Cellular respiration

    • B. 

      Alcoholic fermentation

    • C. 

      Lactic acid fermentation

    • D. 

      All of the above produce approximately the same amount of ATP per glucose molecule

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