Cell Biology

Question 1

What are the main differences between eukaryotic and prokaryotic cells?

Answer 1

Eukaryotic cells have Nuclei while prokaryotic dont

Question 2

What is the purpose of the nucleus?

Answer 2

Contains genetic material that controls the activities of the cell

Question 3

What is the purpose of the cytoplasm?

Answer 3

It is where most chemical reactions take place in the cell

Question 4

What is the purpose of the cell wall and cell membrane?

Answer 4

Cell wall - Provides rigid structure so cell doesn’t burst
Cell Membrane - Controls what comes in and out of the cell

Question 5

What are the differences in organelles in plant and animal cells?

Answer 5

Plant cells - Chloroplast, Cell wall, Permanent Vacuole

Question 6

Name the different organelles of a Sperm cell that helps it do its function.

Answer 6

Flagellum - To help swim to the egg
Mitochondria - Lots of mitochondria to use the correct amount of energy needed to make it to the egg
Enzymes in the head of sperm - To help break through the egg to fertilise it

Question 7

How do bacterial cells store dna?

Answer 7

They store it in small rings of DNA called plasmids and also in single circular strands of DNA present in the cytoplasm

Question 8

What are Ribosomes used for

Answer 8

They are where proteins are made in the cell

Question 9

What are mitochondria used for?

Answer 9

They are used for respiration