Cell Biology Quiz

What structures do both animal and plant cells have in common?

• a) Chloroplast and cell wall

• b) Nucleus, cell membrane, mitochondria, and ribosomes

• c) Permanent vacuole and cytoplasm

• d) Photosynthesis and tropisms

Which organelle contains the enzymes needed for photosynthesis in plant cells?

• a) Mitochondria

• b) Ribosomes

• c) Chloroplast

• d) Nucleus

In which part of the plant are auxins primarily produced?

• a) Leaves

• b) Roots

• c) Apical meristems

• d) Chloroplasts

What is the effect of unequal distribution of auxin in plant cells?

• a) It causes the plant to bend towards the light

• b) It has no effect on plant growth

• c) It can result in unequal growth rates in stems and roots

• d) It causes root cells to grow more

What is the response of a stem to the stimulus of gravity?

• a) Positive gravitropism (grows against gravity)

• b) Negative gravitropism (grows in the direction of gravity)

• c) No response to gravity

• d) It depends on the type of plant

In a root placed horizontally, which side contains more auxin?

• a) The side facing the ground

• b) The side facing away from the ground

• c) Both sides have equal auxin

• d) No side contains auxin

Which of the following is NOT a type of tropism?

• a) Phototropism

• b) Gravitropism

• c) Geotropism

• d) Thermotropism

How does the stem respond to a positive phototropism stimulus?

• a) The stem bends towards the light

• b) Both sides of the stem grow equally

• c) The shaded side of the stem grows longer

• d) The stem doesn't respond to light

In a root, which side contains more auxin when it grows in the direction of gravity?

• a) The top side

• b) The bottom side

• c) Both sides have equal auxin

• d) None of the sides contain auxin

What type of cells are plants made up of?

• a) Prokaryotic

• b) Eukaryotic

• c) Unicellular

• d) Multicellular