Mitosis (Diagrams and Definitions)

Question 1

Explain the four pictures to represent mitosis

Now explain in words the process

Answer 1

#1: single cell (box around a nucleus dot)
#2: double width cell (longer box around nucleus dot)
#3: double width cell with 2 nucleus (no dividing wall)
#4: two regular length cells (each with one nucleus)

Original cell
Growth with one nucleus (genetic material) and double organelles 
Duplicate nucleus (genetic material) with previous shape
Divide into two identical cells, each have a nucleus (genetic material)

Question 2

Where can mitosis occur and what does it do?

Answer 2

The division of cells…
Asexual reproduction for single celled organisms
Asexual reproduction for growth/repair of tissue in multicellular organisms.

Question 3

Do single celled organisms always reproduce asexually?

Answer 3

Usually single celled organisms reproduce asexually, but not always.

Question 4

How do multi cellular organisms use mitosis (asexual reproduction)?

Answer 4

Multicellular organisms use asexual reproduction to grow and repair tissues.

Question 5

Is it true that some multicellular organisms can reproduce asexually if needed?

Answer 5

Yes! Some multicellular organisms such as (many) plants can reproduce asexually if needed.

Question 6

Can all species reproduce sexually?

Answer 6

Yes all species can reproduce sexually (unique offspring, two parents)

Question 7

Explain the 5 pictures to show how cells in tissues (somatic aka body cells) reproduce to make the tissue grow or repair.

Answer 7

#1: before injury - a rectangle with boxes that each contain. Nucleus.
#2: injury - entire cells are lost (the top ends are kept)
#3: repair begins - cells under grow up and no divider 
#4: continues - the nucleus is duplicated and no divider 
#5: repair done - the divider is put in (returning to first picture)

The Before injury picture is 2 by 5 cells. See mitosis diagram.