Biology Endocrine System Topic- Key Knowledge

Question 1

Differences between Nervous and Endocrine system?

Answer 1

• Short lived vs long lasting effects
  -Fast travel and rapid effect vs slow travel and take longer to act
• Localised effect vs widespread effect
• nerve impulses transmitted through neurones vs hormones diffused through bloodstream

Question 2

What is a positive geotropism?

Answer 2

Growth towards gravity

Question 3

What is a positive phototropism?

Answer 3

Growth towards light

Question 4

What does insulin do?

Answer 4

Produced in pancreas, lowers concentration of sugar in the blood by converting glucose into glycogen stored in the liver

Question 5

What does ADH do?

Answer 5

Produced in the pituitary gland, osmoregulation by increasing permeability of collecting duct in the nephron of a kidney

Question 6

What does adrenaline do?

Answer 6

Produced in the adrenal glands, prepares body for physical action, increases breathing rate, heart rate, and mental awareness, glycogen in liver is broken down into glucose

Question 7

How do auxins work?

Answer 7

They diffuse from the tip of a stem and accumulates on the dark side of a plant, stimulate growth so shoot bends towards the light.