Mixed Cards From Whole Unit

Question 1

In animal rod cells rhodopsin absorbs a protein of light initiating :

Answer 1

Activation of hundreds of G-protein molecules
Activation of hundreds of molecules of an enzyme
Sufficient product formation is triggered
Nerve impulse is generated

Question 2

In multicellular organisms, only target cells respond to a specific signal because :

Answer 2

Only target cells have receptor molecules for the signalling molecule

Question 3

The hormone thyroxine is:

Answer 3

Hydrophobic

able to to pass through the cell membrane

Question 4

What is type 1 diabetes caused by?

Answer 4

Insufficient production of insulin

Question 5

At which phase of the cell cycle is the retinoblastoma protein phosphorylated allowing progression to the next phase of the cycle?

Answer 5

G1

Question 6

What is involved in these 3 outcomes following DNA damage?

Outcomes; cell cycle arrest, DNA repair and Apoptosis

Answer 6

P53