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Biomolecules structure and functions

Total questions: 54

Worksheet time: 3585secs

Name
Class
Date
1.
What do monomers do?
a)
Bond to make a polymer
b)
Create essential proteins
c)
Stores energy
d)
Splits to make more cells
2.

Which organic molecule would a long-distance runner most likely choose to eat two hours before a race?

a)

A protein, because it builds muscle mass.

b)

A lipid because it provides long term energy storage.

c)

A carbohydrate because it releases energy quickly.

d)

A protein, because it transports oxygen into the blood stream.

3.

Monosaccharides are the building blocks of which group of biomolecules?

a)

protein

b)

lipid

c)

carbohydrate

d)

nucleic acid

4.

Which biomolecules transport oxygen and other substances and also form part of most organelles?

a)

Lipids

b)

Carbohydrates

c)

Proteins

d)

Nucleic Acids

5.

Your friend is feeling irritable, lightheaded and dizzy. They are also feeling a bit of confusion and brain fog. Which biomolecule would you recommend your friend consume?

a)

Protein

b)

Carbohydrates

c)

Nucleic Acid

d)

Lipid

6.

Which biomolecules contains your genetic information?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Nucleic Acids

7.

Amino Acids are the monomers of __________.

a)

Nucleic Acids

b)

Proteins

c)

Carbohydrates

d)

Lipids

8.

Glycerol and fatty acids are the monomers of _________.

a)

Lipids

b)

Carbohydrates

c)

Proteins

d)

Nucleic Acids

9.

Which biomolecules act as energy storage for the cell and also cushions and insulates organs?

a)

Carbohyrdates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

10.

The monomer of Nucleic Acids is known as _________.

a)

Amino Acid

b)

Fatty Acid

c)

Nucleotide

d)

Saccharide

11.

What type of biomolecule contains carbon, hydrogen, oxygen, and nitrogen?

a)

carbohydrate

b)

lipid

c)

nucleic acid

d)

protein

12.

The following statements are TRUE regarding lipids, EXCEPT:

a)

they store energy for later use

b)

they are insoluble in water

c)

they are composed of carbon, hydrogen, oxygen and phosphorus

d)

they can be found in fats and oils

13.

What biomolecule serves as structural materials in hair, nails and connective tissues?

a)

protein

b)

lipid

c)

carbohydrate

d)

nucleic acid

14.

Just under an orca's skin lies a thick layer of blubber. Blubber helps insulate a whale from heat loss. Based on this information, which biomolecule is blubber primarily made of?

a)

Lipids

b)

Nucleic Acids

c)

Proteins

d)

Carbohydrates

15.

11. People with albinism do not produce the melanin protein. Melanin allows for people to be protected from the sun and thus people with albinism are prone to severe sunburns. Which biomolecule would you infer is responsible for albinism?

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic Acid

16.

The sugar in RNA is _____________while the sugar in DNA is ________.

a)

deoxyribose, ribose

b)

ribose, deoxyribose

c)

c. ribose, phosphate

d)

ribose, uracil

17.

Nucleic acids are primarily made out of...

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

e)

Phosphorus

18.

A scientist discovers new life on a distant planet. While watching the alien species live on the planet, scientists begin to notice that in order to hunt this species will attack another smaller species and inject them with some sort of liquid. After a short time, the smaller organism develops a sort of necrosis which is when a small portion of the organism's flesh begins to break down. Soon after necrosis begins the smaller organism dies.


What can you infer about the function of the poison?

a)

It decreases fast sources of energy

b)

Proteins are being broken down or reshaped

c)

The coding information in the cell is altered

d)

If removes insulation and long term energy storage

19.

Which biomolecule helps form muscles?

a)

Nucleic Acid

b)

Carbohydrate

c)

Protein

d)

Lipids

20.

Which biomolecule makes up cell membranes?

a)

Protein

b)

Carbohydrate

c)

Lipid

d)

Nucleic acid

21.

Identify the biomolecule

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

22.

How do animals store complex sugars?

a)

In the form of glycogen

b)

In the form of cellulose

c)

In the form of chitin

d)

None of the above

23.
What do disaccharides, such as sucrose, and polysaccharides, such as starch, have in common?
a)
They are lipids made of fatty acids.
b)
They are proteins made of amino acids.
c)
They are nucleic acids made of nucleotides.
d)
They are carbohydrates made of simple sugars.
24.
Which of the following answers links a biomolecule with one of its proper functions?
a)
Lipids - Store genetic information
b)
Carbohydrates - short term energy storage
c)
Nucleic Acids - Catalyze reactions
d)
Proteins - long term energy storage
25.
Peptide bonds in proteins can be broken down by the enzyme peptidase. Adrian orders a hamburger and French fries for lunch. He adds cheese and mayonnaise to his hamburger and then sits down to eat lunch with his friends. Which structure would most likely result from the action of peptidase in Adrian’s stomach?
a)
Lipids
b)
Glucose
c)
Nucleic Acid
d)
Amino Acid
26.
How many sugar-phosphate strands exist in each RNA molecule?
a)
4
b)
2
c)
1
d)
None
27.
The molecule in the diagram plays what role in the body?
a)
Releasing Energy
b)
Forming part of the sugar-phosphate backbone of DNA
c)
Storing Fat
d)
Controlling blood glucose levels
28.

What is another name for biomolecules

a)

Macromolecules

b)

Living molecules

c)

Biochemicals

d)

Big molecules

29.

Which of the following are the main elements found in biomolecules?

a)

C, H, O, N, P, S

b)

Ca, He, Os, Ni, Pt, Si

c)

C, He, O, Mg, Pd, S

d)

C, H, Os, Ma, Ni, Se

30.

Biomolecules are considered...

a)

Natural polymers

b)

Synthetic polymers

c)

Natural monomers

d)

Synthetic monomers

31.
Which of the following is a lipid (fatty acid)?
a)
A
b)
B
c)
C
d)
D
32.
Which of the following is a protein (amino acid)?
a)
A
b)
B
c)
C
d)
D
33.
Which biomolecule metabolizes faster?
a)
lipids
b)
carbohydrates
c)
both
d)
neither
34.
Which biomolecule contains more energy per gram?
a)
lipids
b)
carbohydrates
c)
both
d)
neither
35.
The loss of a protein's structure is called...
a)
Denaturation
b)
Unfolding
c)
Coiling
d)
Inactivation
36.
Glycerol and fatty acids combine to form...?
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
37.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
38.

Many carbohydrates tend to end in......

a)

"ose"

b)

"ase"

c)

"ing"

d)

"ain"

39.

Plant cell walls consist of cellulose, a type of sugar, what is it best classified as.

a)

Carbohydrate

b)

Protein

c)

Nucleic Acid

d)

Lipids

40.
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
41.
Which biomolecule functions include enzymes­ which speeds the rate of chemical reactions, structural components in cells, mechanical functions in muscles and cytoskeleton, cell signaling, and immune response; provides structure and helps with chemical reactions 
a)
Protein
b)
Lipids
c)
Carbohydrate
d)
Nucleic Acid
42.
This biomolecule would be used for
a)
Building enzymes
b)
Storing energy
c)
Key source of energy
d)
Storing genetic information
43.
Which biomolecule is this a picture of?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
44.
What is a key difference between carbohydrates and proteins?
a)
Carbohydrates contain carbon; proteins do not.
b)
Proteins contain nitrogen; carbohydrates do not.
c)
Carbohydrates are biomolecules; proteins are not.
d)
Proteins contain covalent bonds; carbohydrates do not.
45.
Proteins are SO diverse because ....
a)
They all have the same structure
b)
They have a wide range of structures
c)
They just are, it has nothing to do with structure
d)
They are alive and can change their function
46.

Which of the following tests for starch?

a)

Iodine Solution

b)

Benedict's Solution

c)

Biuret Solution

d)

Ethanol

47.

Which of the following tests for protein?

a)

Iodine Solution

b)

Benedict's Solution

c)

Biuret Solution

d)

Ethanol

48.

When protein is present Biuret turns...

a)

purple

b)

blue-black

c)

orange

d)

blue

49.

When reducing sugar (glucose) is present Benedict's turns...

a)

purple

b)

blue-black

c)

brick-red

d)

green

50.

How do you test for lipids?

a)

By using Ethanol and water

b)

By using Benedicts solution

c)

By using Iodine solution

d)

By using Biuret test

51.
Which test requires heat?
a)
Benedicts
b)
Biuret
c)
Iodine
52.

This photo represents a

a)

negative test for glucose

b)

negative test for protein

c)

positive test for starch

d)

positive test for glucose

53.

The test tubes in the photo represent a negative and positive result for

a)

Benedict's with glucose

b)

Biuret with protein

c)

Iodine with starch

d)

Ethanol with fat

54.

DCPIP tests for which food group?

a)

vitamin C

b)

fats

c)

reducing sugars

d)

proteins

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