Cells

Question 1

Eukaryotes and prokaryotes

Answer 1

Similarities - ribosomes, cell membrane and cytoplasm
Differences - eukaryotes have a cellulose cell wall, mitochondria and are evolved from prokaryotes
Prokaryotes are much older, have free DNA and are single celled.

Question 2

Plant cell

Animal cell

Answer 2

Plant cell - nucleus, cell wall, cell membrane, cytoplasm, chloroplasts and vacuole.
Animal cell - nucleus, cell membrane and cytoplasm.

Question 3

Nerve cell

Answer 3

Contain a nucleus, cell membrane, cytoplasm, axon, sheath and can be up to a meter long.

Question 4

Root hair cell

Answer 4

They contain: a nucleus, a permanent vacuole, a cell wall, a cell membrane and cytoplasm

Question 5

Sperm cell

Answer 5

They have long tails to be able to swim efficiently to the egg and fertilise it. They also have STREAMLINED heads to also make swimming more efficiently to the egg.

Question 6

Ciliated epithelial cell

Answer 6

These cells have thousands of fine hairs called cilia, they also have cytoplasm and a nucleus.

Question 7

Egg cell

Answer 7

The ovum or female gamete are 85,000 times bigger than the sperm cell and have a nucleus, cytoplasm and a LAYER OF JELLY that makes it easy for the sperm cell to penetrate the eggand fertilise it.