Term 3

Question 1

3 differences between eukaryotic and prokaryotic chromosomes

Answer 1

1. Prokaryotic has singular circular (rather than linear) molecule
2. Prokaryotic is attached to plasma membrane and is not in nuclear membrane
3. Prokaryotic consists of mainly coding genes and proteins

Question 2

Genes are

Answer 2

Sections of DNA strands that can code for proteins

Question 3

Protein synthesis is (simply)

Answer 3

How your DNA can lead to the making of a protein

Question 4

Roles of proteins

Answer 4

Transport
Structure
Acting as enzymes
Protecting the body

Question 5

The two major steps in protein synthesis are:

Answer 5

Transcription and translation

Question 6

What do proteins do in the body

Answer 6

Make connective tissues, cell membranes, connect DNA in chromosomes
Make up hormones such as insulin and chemical messengers that maintain homeostasis
Much us muscule fibres
Act as antibodies for immobilisation and destruction
Are haemoglobin and carrier molecules
Are enzymes (involved in metabolism and others)