Cell biology topic 1- 4 mocks paper 1 B2

Question 1

How do plant cells differentiate

Answer 1

by mitosis, mitosis happens throughout its life in meristems
found in the shoot and root tips

Question 2

when do animal cells differentiate?

Answer 2

Most animal cells differentiate in the early stages of development

Question 3

What is an embryonic stem cell?

Answer 3

Stem cells in humans - cells are removed from the embyro, they will differentiate into any cell type. Some stem cells remain in the bodies of adults but wont be able to differentiate like they used to

Question 4

What can we do with stem cells?

Answer 4

They can be used in medicine/treatment to help certain conditions such as paralysis and diabetes

Question 5

what can plant meristems be used to produce?

Answer 5

Produce new plant clones quickly and economically for research, horticulture, agriculture

Question 6

What happens in therapeutic cloning?

Answer 6

an embryo is produce with the same genes from patient

so the stem cells aren’t rejected and may be used for treatment

Question 7

What happens in therapeutic cloning?

Answer 7

an embryo is produce with the same genes from patient

so the stem cells aren’t rejected and may be used for treatment

Question 8

What are the negatives of therapeutic cloning?

Answer 8

Potential risks

some ethical or religious objections