Coordination and Response Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Stimulus => … => response

A

Receptor => coordination => effector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Homeostasis

A

The maintenance of a constant internal environment e.g. body water content or body temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Shoot Phototropism

A

Positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Root Phototropism

A

Mostly none or some negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Shoot Geotropism

A

Negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Root Geotropism

A

Positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does auxin do?

A

Stimulates cells in the shoot to grow. As it diffuses downwards it moves away from light. The higher concentration of the hormone on the “dark” side of the shoot causes cells there to grow more, resulting in a bending of the shoot toward the light source

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How are hormones transmitted?

A

They are secrete from a gland and travel in the bloodstream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How are nerve signals transmitted?

A

Electrical impulses and neurotransmitters at synapses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What makes up the Central Nervous System?

A

The brain and spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How does a synapse work?

A
  1. Impulse arrived down axon of first neurone
  2. Neurotransmitter diffuses across synapse
  3. Neurotransmitter attached to membrane of second neurone
  4. Impulse started in second neurone
  5. Neurotransmitter broken down by enzyme from second neurone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the effect of nerve impulses?

A

Fast, short-lived and localised

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the effect of hormones?

A

Slower, longer-lasting and more widespread

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What happens when the body is cold?

A
  • Behaviour changes
  • Vasoconstriction
  • Faster metabolism due to adrenaline release
  • Shivering
  • Hair erection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What happens when the body is hot?

A
  • Sweating
  • Vasodilation
  • Behaviour changes
  • Hair erector muscle relaxes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where is adrenaline produced?

A

Adrenal glands

17
Q

Where is insulin produced?

A

Pancreas

18
Q

Where is testosterone produced?

A

Testes

19
Q

Where is progesterone and oestrogen produced?

A

Ovaries

20
Q

Where are AntiDiuretic Hormone, Follicle Stimulating Hormone and Luteinising Hormone produced?

A

Pituitary gland

21
Q

What does adrenaline do?

A

Prepares the body for physical activity

22
Q

What does insulin do?

A

Lowers blood glucose

23
Q

What does testosterone do?

A

Controls development of male secondary sexual characteristics

24
Q

What does progesterone do?

A

Regulates the menstrual cycle

25
Q

What does oestrogen do?

A

Controls the development of female secondary sexual characteristics

26
Q

What does ADH do?

A

Controls the water content of the blood

27
Q

What does FSH do?

A

Stimulates egg development and oestrogen secretion in females and sperm production in male

28
Q

What does LH do?

A

Stimulates egg release (ovulation) in females and testosterone production in males

29
Q

What happens to the pupil in bright light?

A
  • Circular muscles contract
  • Radial muscles relax
  • Pupil constricts
30
Q

What happens to the pupil in dim light?

A
  • Circular muscles relax; - Radial muscles contract; - Pupil dilates
31
Q

What happens to the lens when focusing on a distant object?

A
  • Ciliary muscles relax
  • Suspensory ligament pulled tight
  • Lens flatter
32
Q

What happens to the lens when focusing on a nearby object?

A
  • Ciliary muscles contract; - Suspensory ligaments slack; - Lens more rounded