Download Teacher`s Copy Biochem test prep

Biochemistry Test Prep
Name:_______________
Class:_________
Date:_______________
1. Which substance is an inorganic molecule?
1) starch
2) DNA
3) water
10.In plants, simple sugars are least likely to be
4) fat
1)
2)
3)
4)
2. Which statement describes carbohydrates, lipids, proteins, and
nucleic acids?
1)
2)
3)
4)
They are complex molecules made from smaller molecules.
linked together to form proteins
broken down into carbon dioxide and water
used as a source of energy
stored in the form of starch molecules
11. What substance could be represented by the letter X in the
diagram below?
They are complex molecules made from smaller molecules.
They are used to assemble larger inorganic materials.
They are simple molecules used as energy sources.
3. In a chemical analysis of a sample of animal tissue, which element
would most likely be found in the smallest quantity?
1) hydrogen
3) iodine
2) carbon
4) oxygen
4. Most organisms contain
1)
2)
3)
4)
organic compounds, only
inorganic compounds, only
both organic and inorganic compounds
neither organic nor inorganic compounds
5. The chart below indicates the elements contained in four different
molecules and the number of atoms of each element in those
molecules.
1) carbohydrates
3) carbon dioxide
2) ozone
4) water
12. What is the ratio of hydrogen atoms to oxygen atoms in a molecule
of glucose?
1) 1:1
2) 2:1
3) 3:1
4) 1:2
13. Two examples of carbohydrates are
1) fatty acids and glycerol
3) sugars and starches
2) fats and waxes
4) amino acids and alcohol
14. Which compound has the structural formula shown below?
Which molecule can be classified as organic?
1) A
2) B
3) C
4) D
6. Which substance is an inorganic compound?
1) water
2) glucose
3) maltase 4) insulin
7. Which substances are inorganic compounds?
1)
2)
3)
4)
water and salts
1) starch
4) glucose
1) sources of stored energy and transmitters of
genetic information
2) sources of stored energy and components of
8. Which substance plays a major role in most of the chemical
reactions that occur in a living cell?
cellular membranes
3) transmitters of genetic information and catalysts of chemical
reactions
4) catalysts of chemical reactions and components of cellular
membranes
2) glycogen 3) glycerol 4) maltose
9. Which compound is a polysaccharide?
1) glucose 2) maltase 3) ribose
3) ATP
15. In living organisms, lipids function mainly as
proteins and carbohydrates
fats and oils
enzymes and hormones
1) water
2) PGAL
4) starch
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16. Base your answer to the following question on the information in the chart below and on your knowledge of biology.
Which class of compounds includes the compound represented in the diagram below the chart?
1) A
2) B
3) C
4) D
17. Vegetable oils, such as corn oil, belong to which general class of
organic substances?
1) lipids
3) carbohydrates
2) proteins
4) salts
18. The function of most proteins depends primarily on the
1)
2)
3)
4)
type and order of amino acids
environment of the organism
availability of starch molecules
nutritional habits of the organism
19. In what class of organic molecules would hemoglobin, insulin,
albumin, and maltase, all of which are composed of chains of
amino acids, be placed into?
1) proteins
3) lipids
2) nucleic acids
4) carbohydrates
20. An element found in all proteins but not found in carbohydrates
and lipids is
1) carbon
3) oxygen
2) hydrogen
4) nitrogen
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Answer Key
Biochemistry Test Prep
1.
3
2.
1
3.
3
4.
3
5.
1
6.
1
7.
1
8.
1
9.
4
10.
1
11.
1
12.
2
13.
3
14.
4
15.
2
16.
2
17.
1
18.
1
19.
1
20.
4
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