Unit 1 Homework Sheet 11

HWrkSht 1_11

The Marking Guide has been made available. Use this where you are having difficulty to help you understand the question better. Simply copying the answers from the Marking Guide will not help you learn, using it to help you understand the questions/ answers will.

You will need your Glow login to access the Marking Guide.

1. Which part of a cell controls cell division?

 

 2. How many chromosomes are found in a human diploid cell?

 

 3. After fertilisation an egg cell divides many times. The table shows the increase in cell number after each division.

N5_Unt_1_Sht_11bb

What would be the number of cells after 6 divisions?

 

4. The diagram shows a cell during mitosis.

Which line in the table correctly identifies X and Y?

N5_Unt_1_Sht_11c

5. An onion cell has a chromosome compliment of 16. It divides to form daughter cells, who divide again. How many chromosomes will these new cells have?

6. DNA is found in which part of the cell?

 

7. The following diagrams show four stages of cell division but not in the correct order.

N5_Unt_1_Sht_11f

a) Arrange the letters from the diagram to put the stages in the correct order. The first stage is C

b) Describe what is happening in stage B.

c) Daughter cells produced by mitosis each have the same chromosome complement as the original cell. Why is this important?

d) A cell divides every 20 minutes. How many cells would be produced from one original cell at the end of two hours?

Leave a Reply

Report a Glow concern
Cookie policy  Privacy policy