Metabolism Test: Question Preview (ID: 21065)

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How many amino acids must you get from your diet?
a) 8
b) 12
c) 16
d) All 20

Enzymes function in a chemical reaction to:
a) Act as substrate molecules
b) Lower the amount of activation energy a reaction needs to get started
c) Prevent reactions from occurring
d) Neutralize solutions

In the digestion of fats lab, what substance acted as a coenzyme?
a) Milk
b) Phenol red
c) Bile
d) Pancreatic juice

The molecule that an enzyme reacts with is called a:
a) Coenzyme
b) Cofactor
c) Metabolic pathway
d) Substrate

Which of the following is not part of adenosine diphosphate?
a) Ribose
b) Adenine
c) Glucose
d) Two phosphate groups

Energy for the cell's use is released when ATP gives up a phosphate forming:
a) Glucose
b) AMP and P
c) Pyruvic acid
d) ADP and P

Aerobic respiration takes place in the....
a) Cytoplasm
b) Nucleus
c) Mitochondria
d) Chloroplasts

Cellular respiration...
a) Occurs twelve hours a day
b) Forms ATP from ADP
c) Produces glucose in plants
d) Produces less energy than it uses

Which of the following reactions below represents a catabolic process?
a) Formation of a protein from chains of amino acids
b) Formation of a lipid from glycerol and fatty acids
c) Enzyme catalyzed reaction from glucose and fructose to sucrose
d) Hydrolysis of starch to glucose

Which of the following statements is true of enzymes?
a) Enzymatic reactions speed up when enzymes are heated to boiling
b) The lower the concentration of an enzyme, the higher the enzyme activity
c) The higher the concentration of an enzyme, the higher the enzyme activity
d) Enzymatic reactions work best at 0 degrees.

Which of the following is an anabolic process?
a) Hydrolysis
b) Dehydration synthesis
c) Decomposition
d) Anaerobic respiration

In the digeestion of fats lab, what effect did 100 degree Celcius have on enzyme activity?
a) No effect
b) It slowed down the enzyme activity, but it could be reversed when lowered to 37 degrees Celcius
c) It denatured the enzyme, therefore the enzyme was inactive
d) It increased the enzyme activity

The American Heart Association recommends that dietary fat should constitute no more than _____ % of daily caloric intake
a) 10
b) 30
c) 50
d) 70

The estimated daily amount of carbohydrate needed to avoid utilization of fats and proteins for energy sources is....
a) 30-50 grams
b) 125-175 grams
c) 50-275 grams
d) 300-325 grams

Which of the following series of steps describes cellular respiration?
a) Glycolysis, citric acid cycle, electron transport chain
b) Electron transport chain, glycolysis, citric acid cycle
c) Calvin cycle, electron transport chain, Kreb's cycle
d) Electron transport chain, Kreb's cycle, Calvin cycle

Which term describes the synthesis of cellular protein?
a) Metabolism
b) Catabolism
c) Anabolism
d) Hydrolysis

When our cells go through anaerobic respiration, what is the byproduct?
a) 36 ATP
b) Carbon dioxide and ethanol
c) Pyruvic acid
d) Lactic acid

Cells store energy when:
a) The third phosphate group breaks off from the ATP molecule
b) They break down sucrose to glucose and fructose
c) A third phosphate group is bonded to an ADP molecule
d) Ions are released into the bloodstream

The sequence of enzyme controlled reactions that lead to the build up or breakdown of materials is called....
a) Biochemical pathway
b) Metabolic pathway
c) Enzyme transport chain
d) Anabolic/Catabolic series

The process by which living cells break down and release energy is:
a) Mitosis
b) Photosynthesis
c) Cellular respiration
d) Facilitated diffusion

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