Biology Quiz

What is the main function of the cell membrane?

• Regulate the movement of substances

• Maintain cell shape

• Produce energy for the cell

• Store genetic information

Which organelle is known as the powerhouse of the cell?

• nucleus

• mitochondria

• chloroplast

• lysosome

What is the primary function of starch in plants?

• protection against predators

• storage of glucose

• transportation of nutrients

• production of oxygen

What are triglycerides composed of?

• glycerol and three amino acids

• glucose and three fatty acids

• glycerol and three fatty acids

• cholesterol and three fatty acids

What is the structure of the cell membrane?

• Cholesterol bilayer with embedded carbohydrates

• Protein bilayer with embedded lipids

• Single layer of phospholipids

• Phospholipid bilayer with embedded proteins and other molecules

What is the function of mitochondria in cells?

• Producing energy

• Regulating cell division

• Storing genetic information

• Synthesizing proteins

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

• carbohydrates

• fats

• proteins

• vitamins

What is the role of lipids in the body?

• Lipids have no role in the body

• Lipids are only found in the skin

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

• Lipids are responsible for muscle contraction

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

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

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

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

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

What is the function of the mitochondria in cellular respiration?

• Produce oxygen

• Store DNA

• Produce glucose

• Produce ATP