Biology Exam I: A Quiz On Cells And The Important Macromolecules
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Hello, and welcome to Biology Exam I, where we will be taking a close look at one of the most important topics within the scientific study; cells! How much can you tell us about cells, as well as the essential macromolecules? Take the quiz, and we’ll all find out together!
- 1.Biology is the study of...
- A.
Research
- B.
Living things
- C.
Ecology and evolution
- D.
None of the above
- 2.Enzymes...
- A.
Compose much of th physical structure and framework of an organism
- B.
Are proteins
- C.
Are composed of repeating subunits of mono saccharides
- D.
Form part of the most complex nucleic acids
- 3.Nucleic acids are composed of repeating units of
- A.
Amino acids
- B.
Carbon
- C.
Nucleotides
- D.
Fatty acids
- 4.The entire surface of the earth that contains living organisms is called the
- A.
Biosphere
- B.
Environment
- C.
Atmosphere
- D.
Universe
- 5.There are 20 different amino acids in living organisms. these amino acids form
- A.
Nucleic acids
- B.
Proteins
- C.
Lipids
- D.
Carbohydrates
- 6.The stucture of nearly all organic molecules and important macromolecules is based upon
- A.
Amino acids
- B.
Carbon
- C.
Hydrogen bonds
- D.
Water
- 7.Which substance would you expect to have a pH similar to that of human blood.
- A.
The ocean
- B.
Coffee
- C.
A large lake
- D.
Both a & c
- 8.The smallest unit that can carry out all activities we associate with life is
- A.
Organelle
- B.
Cell
- C.
Tissue
- D.
Organism
- 9.Which is true of all cells
- A.
Go through carious developmental stages
- B.
Respond to light
- C.
Can move from one location to another
- D.
Derived from previously existing cells
- 10.Many of the properties of water that are important in biology are due to _________ in individual water molecules and ________ among multiple water molecules
- 11.Which is true of a solution with a pH of 2.5
- A.
Has a high concentration of OH molecules
- B.
Has a low concentration of H+ molecules
- C.
Has approximately equal number H+ and OH molecules
- D.
Has a low concentration of H+ molecules
- 12.Which type of molecules would you expect to easily dissolve in water
- A.
Charged molecules
- B.
Non-polar molecules
- C.
Polar molecules
- D.
Both a & c
- 13.The basis for the occurrence of evolution within organism is
- A.
Death
- B.
Genetics
- C.
Repdators
- D.
Cells
- 14.A 6-carbon simple sugar that forms long chaing of carbohydrates such as starch and cellulose is
- A.
Sucrose
- B.
Amino acids
- C.
Disaccharides
- D.
Glucose
- 15.Cholesterol and steroid hormones are among biologically important macromolecules grouped into
- A.
Proteins
- B.
Lipids
- C.
Carbs
- D.
Nucleic acids
- 16.Many of the thermal properties of water that are important fro life result from interaction of many water molecules at the level of
- A.
Triple bonds
- B.
Hydrogen bonds
- C.
Freezing
- D.
Polarity
- 17.A primary function of lipids in organisms is
- A.
Component of a cell membrane
- B.
Energy
- C.
Hormones
- D.
All of these
- 18.Which of the following is not a characteristic of living things
- A.
Interaction
- B.
Multicellular
- C.
Energy transformation
- D.
Reproduction
- 19.Which of these pairs is mismatched
- A.
Monosaccharides-cellulose
- B.
Disaccharides-glucose
- C.
Polysaccharides-sucrose
- D.
All of these are incorrectly matched
- 20.Which is found in a typical P cell
- A.
Ribosomes
- B.
Nucleous
- C.
Dna
- D.
Both c & d
- 21.An organelle associated with packaging proteins and export from the cell
- A.
Plastids
- B.
Lysosomes
- C.
Golgi body
- D.
Ribosomes
- 22.The lipid bilayer of cell membranes has an arrangement where the hydrophobic ends of the phospholipids are
- A.
On the inside of the bilayer
- B.
Oriented to completely pass the bilayer
- C.
Very rigidly anchored in place
- D.
On the outside of the bilayer
- 23.Active transports of substances across a cell membrane differs from passive transport in that
- A.
Active transport requires energy and passive transport does not
- B.
Active transport moves molecules against their concentration gradient
- C.
Passive transport usually involves small uncharged molecules
- D.
All of these
- 24.The major structural component of a cell membrane in the part that gives the membrane many of the Perm. membrane is
- A.
Cholesterol
- B.
Glycolipids
- C.
Phospholipids
- D.
Proteins
- 25.The energy requiring movement of materials against a concentration gradient is
- A.
Active transport
- B.
Secondary active transport
- C.
Facilitated diffusion
- D.
Osmosis
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