Free Printable AP bio 2020 Unit 1 Review

1.

The image below shows a polymer of glucose molecules. What type of macromolecule is this?

a)

carbohydrate

b)

protein

c)

lipid

d)

nucleic acid

2.

What type of macromolecule is shown in the image below?

a)

Carbohydrate

b)

Nucleic Acid

c)

Fatty Acid

d)

Protein

3.

An unknown molecule contains a sugar and a phosphate group. It is likely what?

a)

carbohydrate

b)

protein

c)

lipid

d)

nucleic acid

4.

Larger polymers are formed when monomers are joined together by a _______ reaction.

a)

dehydration synthesis

b)

digestion

c)

hydrolysis

d)

redox

5.

What is the monomer of proteins?

a)

monosaccharides

b)

amino acids

c)

phospholipids

d)

nucleotide

6.

What is the ratio carbon:hydrogen:oxygen in carbohydrates?

a)

1:1:1

b)

1:2:1

c)

2:1:1

d)

2:1:2

7.

Which of the macromolecules contain nitrogen?

a)

proteins only

b)

nucleic acids only

c)

proteins and lipids

d)

nucleic acids and proteins

8.

What is the function of fats for living organisms?

a)

short term energy storage

b)

store hereditary information

c)

long term energy storage

d)

catalyze metabolic reactions

9.

Identify the macromolecule in the image below.

a)

carbohydrate

b)

nucleic acid

c)

protein

d)

lipid

10.

How are the subunits of proteins linked together?

a)

ionic bonds

b)

amino acids

c)

monomers

d)

peptide bonds

11.

The image depicts which level of structure in proteins?

a)

primary

b)

secondary

c)

tertiary

d)

quaternary

12.

Which 4 elements make up most of all living matter?

a)

Carbon, Hydrogen, Nitrogen, Oxygen

b)

Carbon, Oxygen, Sodium, Potassium

c)

Carbon, Hydrogen, Calcium, Nitrogen

d)

Carbon, Oxygen, Nitrogen, Sulfur

13.

Which of the following is NOT involved in capillary action in plants?

a)

Xylem (transport tissue)

b)

Adhesion

c)

Cohesion

d)

pH

14.

When atoms share electrons unequally...

a)

a nonpolar covalent bond is formed.

b)

an ionic bond is formed.

c)

a polar covalent bond is formed.

d)

a hydrogen bond is formed.

15.

Which type of lipid forms the primary structure of the cell membrane?

a)

triglycerides

b)

wax

c)

cholesterol

d)

phospholipid

16.

When water freezes the molecules form a matrix by forming hydrogen bonds and

a)

sinking in water

b)

becomes more dense than water

c)

becomes less dense than water

d)

becoming more tightly packed

17.

If a hydroxyl functional group is present, which of the following is likely to be true?

a)

The compound will dissolve in water.

b)

The compound is hydrophobic.

c)

The compound will not form hydrogen bonds.

d)

The compound is nonpolar.

18.

What is the difference between carbon-12 and carbon-14? (Hint: 12 and 14 are mass #)

a)

The number of protons in the nucleus.

b)

The number of protons and neutrons in the nucleus.

c)

The number of neutrons in the nucleus.

d)

The number of electrons in the orbitals.

19.

A water strider can skate along the top of a pond because:

a)

covalent bonds result in water cohesion

b)

hydrogen bonds result in water cohesion (surface tension)

c)

water striders have adapted to take advantage of water cohesion

d)

low surface tension of water

20.

What word describes when water is attracted to other substances?

a)

cohesion

b)

adhesion

c)

capillary action

d)

surface tension

21.

Why can water have no net charge but have slight charges in different parts of the molecule?

a)

The oxygen end is slightly negative and the hydrogen end is slightly positive

b)

The hydrogen end is slightly negative and the oxygen end is slightly positive

c)

The hydrogen and oxygen ends change in polarity

d)

Because it is hydrophobic

22.

Why does water move from the roots to the leaves of plants?

a)

Water is pushed by solutes

b)

Capillary action pulls the water molecules like a chain

c)

Water is pulled by gravity

d)

Water’s cohesion causes it to “pull” towards the leaves

23.

Attractions between water molecules are called

a)

Covalent bonds

b)

Ionic bonds

c)

Polar bonds

d)

Hydrogen bonds

24.

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

a)

adhesion

b)

capillary action

c)

cohesion

d)

surface tension

25.

Which is NOT a unique property of water?

a)

Frozen water floats on liquid water.

b)

Water covers most of the Earth’s surface and retains a large amount of heat.

c)

Water molecules stick to each other through hydrogen bonds.

d)

Water cools very rapidly.

26.

What property of water helps to moderate earth's temperature?

a)

adhesion

b)

chohesion

c)

Specific heat capacity

d)

Latent heat of vaporization

27.

The reason the water balloon did NOT pop while held over a flame is water's _________.

a)

Less dense than air.

b)

Hydrogen bonds between water molecules.

c)

polarity.

d)

high specific heat capacity.

28.

What word describes when a molecule is attracted to water?

a)

hydrophobic

b)

hydrophilic

c)

bipolar

d)

solvent

29.

When you mix salad oil and water they immediately separate because:

a)

Salad oil is hydrophobic

b)

Hydrogen bonds reform between water molecules

c)

Salad oil is too heavy

d)

It depends on what kind of oil you are using

30.

Why does ice float?

a)

As water freezes, it expands and its density decreases.

b)

As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

c)

As water freezes, air becomes trapped between the hydrogen bonds of water molecules.

d)

As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

31.

Water is polar because...

a)

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

b)

The molecule has two poles, at which the it is colder than other regions of the molecule.

c)

The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.

d)

The water molecule is neutral.

32.

Paper chromatography can be used to separate pigments in a black dot or can even separate chemicals from a mixture. This is because the pigments or chemicals are different sizes and are carried by water up the paper at different rates. Water can move UP paper, against gravity, due to ______________.

a)

capilary action

b)

capital action

c)

cohesion action

d)

coronary action

33.

These are all related to carbohydrate EXCEPT

a)

Glucose

b)

Nucleotides

c)

Glycosidic bond

d)

Cellulose

34.

One of amino acids

a)

Ribose

b)

Adenosine

c)

Sucrose

d)

Methionine

35.

The difference of DNA and RNA is the presence of

a)

Uracil

b)

Guanine

c)

Adenine

d)

Cytosine

36.

When 2 amino acids undergo condensation, what bond is formed?

a)

Hydrogen bond

b)

Peptide bond

c)

Van der Waals

d)

Hydrophobic interaction

37.

All amino acids must have these EXCEPT

a)

carboxyl group

b)

Aldehyde

c)

Amine group

d)

Hydrogen

38.

The significance of a lipid

a)

Thermal insulator

b)

Catalysis

c)

Transmit genetic information

d)

Control growth

39.

The polymer of carbohydrate EXCEPT

a)

Starch

b)

Collagen

c)

Cellulose

d)

Glycogen

40.

the polysacchrides used for structure are

a)

digestible by humans

b)

beta glucose polymers

c)

alpha glucose polymers

d)

include glycogen

41.

chitin

a)

is found in some animals

b)

is found in your liver

c)

is digestible by humans

d)

is a polymer of alpha glucose

42.

An alpha helix

a)

is the same as a beta pleated sheet

b)

occurs when alpha glucoses bind

c)

is the result of backbone interactions

d)

the result of side chain interactions

43.

disulfide bridges

a)

are the result of backbone interactions

b)

contribute to tertiary structure

c)

are the result of hydrogen bonds

d)

are the result of ionic bonds

44.

secondary structure

a)

is the direct result of primary structure

b)

is the result of side chain interactions

c)

include beta pleated sheets and alpha helixes

d)

can be saturated or unsaturated

45.

the difference between a purine and a pyrimidine

a)

purines are larger

b)

purines are smaller

c)

purines have many more double bonds

d)

purines are found in RNA not in DNA

46.

Pyrimidines include

a)

Uracil, Cytosine and Guanine

b)

Uracil, Adenine and Thymine

c)

Uracil, Cytosine and Thymine

d)

all possible DNA nitrogen bases, but not RNA

47.

phospholipids

a)

have two fatty acid chains

b)

make up the cell membrane

c)

are considered lipids

d)

have a part that is hydrophilic

e)

all of these

48.

saturated fatty acids

a)

are found in many plants

b)

are found in animals

c)

are liquid at room temperature

d)

have bent carbon chains

49.

What makes up the vertical part of a triglyeride

a)

a 3 carbon sugar

b)

a 3 carbon fat

c)

a fatty acid

d)

none of these

50.

Which biomolecule is also known as enzymes?

a)

Carbohydrate

b)

Lipid

c)

Nucleic Acid

d)

Protein

51.

Which biomolecule are in starches and fibers?

a)

Lipid

b)

Protein

c)

Nucleic Acid

d)

Carbohydrate

52.

Which biomolecule is made of nucleotides and contain you DNA?

a)

Carbohydrate

b)

Lipids

c)

Protein

d)

Nucleic Acid

53.

Which biomolecule helps form muscles?

a)

Nucleic Acid

b)

Carbohydrate

c)

Protein

d)

Lipids

54.

Which biomolecule is responsible for insulation and energy storage?

a)

Protein

b)

Nucleic Acid

c)

Lipid

d)

Carbohydrate

55.

Which biomolecule is your main source of quick energy?

a)

Nucleic Acid

b)

Protein

c)

Lipid

d)

Carbohydrate

56.

Which biomolecule is this a picture of?

a)

Protein

b)

Nucleic Acid

c)

Lipid

d)

Carbohydrate

57.

Which 2 molecules contains the elements C-H-O and function pertains to energy?

a)

Lipids and Protein

b)

Carbohydrates and Nucleic Acids

c)

Protein and Carbohydrates

d)

Carbohydrates and Lipids

58.

Which biomolecule is this a picture of?

a)

Protein

b)

Nucleic Acid

c)

Lipid

d)

Carbohydrate

59.

Which of the following is NOT a biomolecule?

a)

Water

b)

Nucleic Acid

c)

Protein

d)

Lipid

60.

Which of the following is NOT a lipid?

a)

Fats

b)

Oils

c)

Waxes

d)

Proteins

61.

Carbon's ability to make up to 4 covalent bonds is called

a)

tetris

b)

convolenence

c)

tetravalence

d)

volitivity

62.

the average of a group of numbers is called the

a)

mode

b)

mean

c)

median

d)

range

AP bio 2020 Unit 1 Review

Total questions: 62

Worksheet time: 1hrs 25mins

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