Quiz about Unit 02 Biomolecules REVIEW

Question 1

In plant cells, the cell wall is made of _______.

Accepted Answer

cellulose

Answer

starch

Answer

chitin

Answer

glycogen

Question 2

Which of these elements is found in carbohydrates?

Accepted Answer

CHO

Answer

CHOP

Answer

CHON

Answer

CHONP

Question 3

Which of these elements is found in Lipids?

Accepted Answer

CHOP

Answer

CHO

Answer

CHON

Answer

CHONP

Question 4

Which of these elements is found in Proteins?

Accepted Answer

CHON

Answer

CHO

Answer

CHOP

Answer

CHONP

Question 5

Which of these elements is found in Nucleic Acids?

Accepted Answer

CHONP

Answer

CHO

Answer

CHOP

Answer

CHON

Question 6

Which of these elements is NOT found in carbohydrates or lipids?

Accepted Answer

C. Nitrogen

Answer

A. Hydrogen

Answer

B. Carbon

Answer

D. Oxygen

Question 7

Which macromolecule does the body use as the most QUICK source of energy?

Accepted Answer

carbohydrates

Answer

lipids

Answer

proteins

Answer

nucleic acids

Question 8

The cell membrane has opposing polar and non-polar organic compounds that allow it to control what goes into and out of the cell. The cell membrane is mainly composed of ________.

Accepted Answer

lipids

Answer

carbohydrates

Answer

proteins

Answer

nucleic acids

Question 9

Saturated Fats are Solid at room temperature.

Accepted Answer

True

Answer

False

Question 10

Unsaturated Fats are Liquid at room temperature.

Accepted Answer

True

Answer

False

Question 11

Saturated fats like butter are solid at room temperature; while unsaturated fats, such as olive oil, are liquid at room temperature. Which of the following is an explanation for the difference in these two types of fat?

Accepted Answer

Saturated fats have straight chains, while unsaturated fats have bent chains

Answer

Saturated fats have bent chains, while unsaturated fats have straight chains

Answer

Saturated fats have no chains; while unsaturated fats have chains

Answer

Saturated fats have chains; while unsaturated fats have no chains

Question 12

An advertisement for a health supplement for a dog claims to build lean muscle and strengthen tendons and ligaments, as well as provide energy. Which two biomolecules must the supplement contain to provide these benefits?

Accepted Answer

D. proteins and carbohydrates

Answer

A. carbohydrates and lipids

Answer

B. nucleic acids and carbohydrates

Answer

C. lipids and nucleic acids

Question 13

Which two biomolecules are a source of energy for the body?

Accepted Answer

A. carbohydrates and lipids

Answer

B. nucleic acids and carbohydrates

Answer

C. lipids and nucleic acids

Answer

D. proteins and carbohydrates

Question 14

Bears eat all summer to store long term energy for their winter hibernation. Which of these do they use to store energy for their long hibernation?

Accepted Answer

lipids

Answer

carbohydrates

Answer

proteins

Answer

nucleic acids

Question 15

In a chemical reaction, the molecule(s) that go into the reaction are called _______.

Accepted Answer

reactants

Answer

products

Answer

monomers

Answer

inhibitors

Question 16

In a chemical reaction, the molecule(s) that come out of the reaction are called _______.

Accepted Answer

products

Answer

reactants

Answer

monomers

Answer

inhibitors

Question 17

This biomolecule group is responsible for doing work in the cell such as building, repairing, or acting as enzymes.

Accepted Answer

protein

Answer

carbohydrates

Answer

Lipids

Answer

nucleic acids

Question 18

Which monomer includes sugar, phosphate, and a base?

Accepted Answer

nucleotide

Answer

amino acid

Answer

phosphate

Answer

monosaccharide

Question 19

A Nucleotide includes sugar, phosphate, and a base what Biomolecule is it the monomer of?

Accepted Answer

Nucleic Acids

Answer

Protein

Answer

Carbohydrates

Answer

Lipids

Question 20

When an animal's blood-sugar level is low, insulin (a hormone) is released to tell the liver to release some of its stored energy. This stored energy is in the form of ___.

Accepted Answer

glycogen

Answer

glucose

Answer

starch

Answer

cellulose

Question 21

Which of the following is not a function of proteins?

Accepted Answer

D. store and pass on genetic information

Answer

A. build tissues such as bone and muscle

Answer

B. control the rate of reactions and regulate cell processes

Answer

C. help to fight disease

Question 22

The enzyme catalase is an example of which type of biomolecule?

Accepted Answer

proteins

Answer

carbohydrates

Answer

lipids

Answer

nucleic acids

Question 23

What is an advantage of lowering the activation energy of a reaction?

Accepted Answer

It allows the reaction to proceed more quickly.

Answer

It changes the optimum (best) pH of the enzyme.

Answer

It prevents chemicals from reacting when they should.

Answer

It allows reactions to proceed at higher temperatures.

Question 24

What is an active site?

Accepted Answer

the area of an enzyme where the substrate binds is called the active site

Answer

the arrow in a chemical equation represents the active site

Answer

when a reactant turns into a product, it is referred to as the active site

Answer

the entire enzyme is also called the active site

Question 25

What is the difference between DNA and RNA?

Accepted Answer

DNA is double-stranded and RNA is single-stranded

Answer

DNA is shorter than RNA

Answer

DNA is used for protein synthesis and RNA is used for lipid synthesis

Answer

DNA has more ionic bonds than RNA

Question 26

The Molecule that encodes and transmits information in organisms is ___?

Accepted Answer

DNA

Answer

carbohydrates

Answer

enzyme

Answer

phospholipid

Question 27

Refer to the diagram of a nucleotide. Identify the part labeled B.

Accepted Answer

Pentose sugar

Answer

Phosphate group

Answer

Nitrogenous base

Question 28

Molecules that are organic contain the element ___.

Accepted Answer

Carbon

Answer

Oxygen

Answer

Hydrogen

Answer

Phosphorus

Question 29

Which of the following categories of organic molecules is correctly paired with one of its functions?

Accepted Answer

proteins - provide structure in skin, hair, and nails, muscles

Answer

nucleic acids - digest dead cells

Answer

lipids - give quick energy to cells

Answer

carbohydrates - store genetic information

Question 30

How is a specific enzyme able to catalyze a specific reaction?

Accepted Answer

An enzyme binds to a specific substrate for the reaction that is catalyzed.

Answer

Different enzymes are synthesized in specific areas of the cytoplasm.

Answer

Most enzymes can catalyze many different reactions.

Answer

Enzymes are transported to specific substrates (reactants) by ribosomes.

Question 31

Which nutrient has a higher % Daily Value: Dietary Fiber or Sugars?

Accepted Answer

Dietary Fiber (10%)

Answer

Sugars (5%)

Answer

Protein (2%)

Answer

Total Fat (8%)

Question 32

All polymers are made of ________.

Accepted Answer

Monomers

Answer

Polymers

Answer

Nitrogen

Answer

Hydrogen

Question 33

Which list correctly matches the functions to the types of carbohydrates?

Accepted Answer

Energy: glycogen and starch

Structure: cellulose and chitin

Answer

Energy: cellulose and starch

Structure: chitin and glycogen

Answer

Energy: chitin and glycogen

Structure: cellulose and starch

Answer

Energy: cellulose and chitin

Structure: glycogen and starch

Question 34

What biomolecule do enzymes belong to?

Accepted Answer

Protein

Answer

Carbohydrate

Answer

Lipid

Answer

Nucleic Acid

Question 35

Which of the following is the structural polysaccharide found in the cell wall of fungi?

Accepted Answer

Chitin

Answer

Cellulose

Answer

Peptidoglycan

Answer

Glycogen

Question 36

What type of carbohydrate is this?

Accepted Answer

polysaccharide

Answer

disaccharide

Answer

monosaccharide

Answer

it isn't a carbohydrate

Question 37

What type of carbohydrate is this?

Accepted Answer

disaccharide

Answer

polysaccharide

Answer

monosaccharide

Answer

it isn't a carbohydrate

Question 38

What are the three components of a nucleotide?

Accepted Answer

Sugar, phosphate, nitrogenous base, hydrogen

Answer

Sugar, phosphate, nitrogenous base, sulfur

Answer

Sugar, phosphate, nitrogenous base, oxygen

Answer

Sugar, phosphate, nitrogenous base, carbon

Question 39

What part of the nucleotide is being shown by part "A" in the diagram?

Accepted Answer

sugar

Answer

Nucleotide

Answer

Phosphate

Answer

Nitrogen base

Question 40

What part of the nucleotide is being shown by part "B" in the diagram?

Accepted Answer

Phosphate

Answer

Nucleotide

Answer

sugar

Answer

Nitrogen base

Question 41

What part of the nucleotide is being represented by "C" in the diagram?

Accepted Answer

NItrogen base

Answer

Nucleotide

Answer

Deoxyribose

Answer

Phosphate

Question 42

How many calories are in 2 waffles?

Accepted Answer

180

Answer

90

Answer

360

Answer

200

Question 43

An enzyme speeds up a reaction by

Accepted Answer

lowering the activation energy

Answer

raising the activation energy

Answer

releasing energy

Answer

absorbing energy.

Question 44

Where do substrates bind on an enzyme?

Accepted Answer

active site

Answer

voltage-gated channels

Answer

surface receptor

Answer

calcium channels

Question 45

What is the difference between DNA & RNA?

Accepted Answer

DNA is Double Stranded & RNA is Single Stranded

Answer

RNA is double stranded & DNA is Single Stranded.

Answer

Neither are correct

Unit 02 Biomolecules REVIEW

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