GCSE Biology - Cell Biology - 2 - Exam Style Questions with Answers

Created on January 04, 2023 By

paruppts12

GCSE_AQA_GEN_BIO_1_CELL_2

1 / 10

The chromosomes are visible

The nucleus is visible and ‘X’ shaped

There is a haploid number of chromosomes

The nucleus has visible pores

2 / 10

How many chromosomes are found in the nucleus of gametes?

21

24

23

22

3 / 10

What are the three main stages of the cell cycle?

Replication of DNA; Meiosis; division of cell

Replication of DNA; Binary Fission; division of cell

Replication of DNA; mitosis; division of cell

4 / 10

What are chromosomes made up of?

Chromosomes consist of DNA molecules combined with enzymes

Chromosomes consist of RNA molecules combined with bileacdis

Chromosomes consist of RNA molecules combined with amino acids

Chromosomes consist of DNA molecules combined with proteins

5 / 10

Describe the third stage of the cell cycle?

cytoplasm and cell membrane divide two identical daughter cells are produced

cytoplasm and ribosomes divide two identical daughter cells are produced

cytoplasm and chloroplast divide two identical parent cells are produced

cytoplasm and mitochondria divide two identical parent cells are produced

6 / 10

What is a gene?

A section of RNA which codes for a amino acids

A section of RNA which codes for a enzymes

A section of DNA which codes for a nutrients

A section of DNA which codes for a protein

7 / 10

What is stem cell?

both A and B

Capable of dividing into / giving rise to, several / many other different /specialised cell types;

An undifferentiated cell

All of the above

8 / 10

How are chromosomes arranged in the nucleus of a body cell?

Arranged in pairs – 45 chromosomes form 21 pairs.

Arranged in pairs – 44 chromosomes form 22 pairs.

Arranged in pairs – 46 chromosomes form 23 pairs.

Arranged in pairs – 42 chromosomes form 24 pairs.

9 / 10

Describe the first stage of the cell cycle?

Longest stage- cells damage and decrease in weight, replicate RNA

Longest stage- cells grow and increase in mass, replicate DNA

Shortest stage- cells grow and increase in mass, replicate DNA

Shortest stage- cells grow and decrease in mass, replicate RNA

10 / 10

Why is mitosis important?

it allows sexual reproduction of diploid organisms

produces genetic variation by way of the process of recombination.

Produces identical cells which all have the same genetic information.

the primary method of reproduction of prokaryotic organisms

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