ALL BIO

Question 1

What are the 2 hormones that Circadian rhythms effect in humans?

Answer 1

Cortisol, Melatonin

Question 2

At what time does Melatonin increase and decrease?

Answer 2

8.00pm and 7.00am

Question 3

Describe a Circadian rhythm.

Answer 3

-24 hours
-Triggered by Biological body clock
-Regulates the release of hormones
Daily rhythm

Question 4

What was Ireland hit by in 1845?

Answer 4

Potato Famine

Question 5

What are Aseptic techniques?

Answer 5

Any method to ensure that living microorganisms do not come into contact with something

Question 6

Process on monoclonal antibodies?

Answer 6

1. Mouse injected using antigens 2.Mouse has immune response 3. B Lymphocyte extracted form blood 4. Cancerous myeloma cells divide 5. Cells are fused to create Hybridoma 6. Antibodies are extracted and used

Question 7

What jobs does the liver have?

Answer 7

• Regulates blood Glucose
• Produces bile
• Breaks down toxins into blood E.G alcohol.
• Break down excess Amino Acids in blood which creates Urea.

Question 8

Kidneys - Red =

Blue =

Answer 8

Red = Artery, dirty blood 
Blue = Renal vein, clean blood

Question 9

6 parts of urinal system?

Answer 9

Artery
Renal vein
Bladder
Ureter
Uretha
Kidney

Question 10

Reasons for kidney failure?

Answer 10

Infection
Chronic kidney disease
Inherited kidney problems
Kidney stonesq

Question 11

What is Osmoregulation?

Answer 11

Control of water level in body.

Question 12

What is Negative feedback?

Answer 12

A control mechanism in which a change in factor causes an action that reverses the change.

Question 13

What does the Hypothalamus do?

Answer 13

Water levels in blood monitored by it.