3. Like complex carbohydrates, proteins are biomolecules that serve many functions and can be ciemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
A) Polymers of smaller subunits
B) Sequences of sugars
C) Lipids of large molecules
D) Nucleotides of DNA
5. Which statement best describes the relationship between the products of photosynthesis and the reactants in cellular respiration?
A) The products of photosynthesis serve as the reactants in cellular respiration to provide chemical energy.
B) The products of photosynthesis combine with the reactants in cellular respiration to remove ATP from cells.
C) The products of photosynthesis inhibit the reactants in cellular respiration in the presence of light.
D) The products of photosynthesis change the structure of the reactants in cellular respiration in the presence of sunlight.
6. Plants use light energy to produce food chemicals. The process that makes these food chemicals using solar energy is Photosynthesis. Chemical reactions convert the radiant energy of the sun into what type of chemical energy?
A) glucose
B) proteins
C) amino acids
D) enzymes
7. What molecule is the primary source of energy for all biochemical processes?
A) NADH
B) 02
C) CO2
D) ATP
8. Aerobic respiration takes place in a mitochondrion. Which of the following gases is a waste product of aerobic respiration?
A) carbon dioxide
B) hydrogen
C) oxygen
D) nitrogen
9. Which of the following must be available for aerobic respiration to take place?
A) Hydrogen sulfide
B) Oxygen
C) Carbon dioxide
D) Nitrogen
10. Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids.
Which of the following suggests that the shape of an enzyme determines the enzyme's function?
A) Enzymes are specific to a substrate.
B) Enzymes can operate in a wide range of conditions.
C) Enzymes are activated by neighboring molecules.
D) Enzymes can be found in all life-forms.
11. How do enzymes catalyze a reaction?
A) They decrease the number of products.
B) They increase the number of reactants.
C) They increase the temperature of the reaction.
D) They decrease the activation energy of the reactants.
12. Lipases are enzymes that speed up the digestion of which type of compound?
A) lipids
B) carbohydrates
C) proteins
D) nucleic acid
14. Carbohydrates and lipids both serve as a source of energy for organisms. What kind (s) of energy are provided by carbohydrates and lipids?
A. Lipids provide a quick source of energy, while carbohydrates provide long-term energy storage.
B. Carbohydrates provide a quick source of energy, while lipids provide long-term energy storage.
C. Both carbohydrates and lipids provide a quick source of energy.
D. Both carbohydrates and lipids provide long-term energy storage.
15. Animals, like bears, hedgehogs, and frogs, hibernate during the cold winter months to conserve energy. Hibernation allows them to survive for long periods of time without needing to eat. Their bodies get nutrients and energy during hibernation by burning stored fat.
In order for hibernation to work, the animal would need to eat a lot of what biomolecule first?
A. Carbohydrates
B. Lipids
C. Nucleic acids
D. Proteins
3. A) Polymers of smaller subunits
5. A) The products of photosynthesis serve as the reactants in cellular respiration to provide chemical energy.
6. A) glucose
7. D) ATP
8. A) carbon dioxide
9. B) Oxygen
10. A) Enzymes are specific to a substrate.
11. D) They decrease the activation energy of the reactants.
12. A) lipids
14. B) Carbohydrates provide a quick source of energy, while lipids provide long-term energy storage.
15. B) Lipids