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Biology Quiz

Total questions: 20

Worksheet time: 23mins

Name
Class
Date
1.

What is the main function of the cell membrane?

a)

Regulate the movement of substances

b)

Maintain cell shape

c)

Produce energy for the cell

d)

Store genetic information

2.

Which organelle is known as the powerhouse of the cell?

a)

nucleus

b)

mitochondria

c)

chloroplast

d)

lysosome

3.

What is the primary function of starch in plants?

a)

protection against predators

b)

storage of glucose

c)

transportation of nutrients

d)

production of oxygen

4.

What are triglycerides composed of?

a)

glycerol and three amino acids

b)

glucose and three fatty acids

c)

glycerol and three fatty acids

d)

cholesterol and three fatty acids

5.

What is the structure of the cell membrane?

a)

Cholesterol bilayer with embedded carbohydrates

b)

Protein bilayer with embedded lipids

c)

Single layer of phospholipids

d)

Phospholipid bilayer with embedded proteins and other molecules

6.

What is the function of mitochondria in cells?

a)

Producing energy

b)

Regulating cell division

c)

Storing genetic information

d)

Synthesizing proteins

7.

What is the main source of energy for the human body?

a)

carbohydrates

b)

fats

c)

proteins

d)

vitamins

8.

What is the role of lipids in the body?

a)

Lipids have no role in the body

b)

Lipids are only found in the skin

c)

Lipids serve as a source of energy, insulate and protect organs, aid in vitamin absorption, and form cell membranes.

d)

Lipids are responsible for muscle contraction

9.

What is the function of the cell membrane in maintaining cell homeostasis?

a)

The function of the cell membrane in maintaining cell homeostasis is to regulate the movement of substances in and out of the cell.

b)

The function of the cell membrane in maintaining cell homeostasis is to store genetic information.

c)

The function of the cell membrane in maintaining cell homeostasis is to produce energy for the cell.

d)

The function of the cell membrane in maintaining cell homeostasis is to provide structural support to the cell.

10.

What is the function of the mitochondria in cellular respiration?

a)

Produce oxygen

b)

Store DNA

c)

Produce glucose

d)

Produce ATP

11.

What is the difference between starch and cellulose?

a)

Starch is a storage form of glucose in plants, while cellulose is a structural component of plant cell walls.

b)

Starch and cellulose are both storage forms of glucose in plants.

c)

Starch is found in animal cells, while cellulose is found in plant cells.

d)

Starch is a storage form of fructose in plants, while cellulose is a structural component of plant cell walls.

12.

What are the three types of lipids?

a)

fats, oils, and waxes

b)

amino acids, nucleotides, and enzymes

c)

sugars, starches, and cellulose

d)

carbohydrates, proteins, and vitamins

13.

What is the function of proteins in the body?

a)

Proteins have no function in the body.

b)

Proteins are only involved in muscle building in the body.

c)

Proteins only function as energy sources in the body.

d)

Proteins have many functions in the body.

14.

What is the role of the cell membrane in cell communication?

a)

The cell membrane acts as a barrier and prevents cell communication.

b)

The cell membrane is not involved in cell communication.

c)

The cell membrane only allows the passage of nutrients and does not play a role in cell communication.

d)

The cell membrane allows the passage of signaling molecules and contains receptors for cell communication.

15.

What is the function of triglycerides in the body?

a)

Hormone production

b)

Energy storage

c)

Cellular communication

d)

Structural support

16.

Describe how Carbohydrates and lipids are similar.

4 lines
17.

A ____ contains polar and nonpolar ends, forming the plasma membrane.

a)

microtubule

b)

transport protein

c)

cytoskeleton

d)

phospholipid bilayer

18.

The semifluid environment inside the plasma membrane is called ____.

a)

endoplasmic reticulum

b)

microtubules

c)

cytoplasm

d)

mitochondria

19.

What moves needed substances or waste materials through the plasma membrane?

a)

transport proteins

b)

polar heads

c)

DNA

d)

water molecules

20.

The table below shows three foods, the large molecules they are made of, and the smaller molecules into which they digest. Some information is missing from the table, represented by the letters W, W, Y, and Z. Use the table to answer any questions that follow.


In the table, which letter should be replaced with "Protein"?

a)

W

b)

X

c)

Y

d)

Z