Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GCSE AQA Biology > B11 - Endocrine system > Flashcards

B11 - Endocrine system Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Geography - AQA flashcards AP® Biology flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route B flashcards Biology 101 flashcards
1
Q

endocrine system

A

glands secrete hormones into bloodstream

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

how do hormones reach target organ

A

via blood
-receptors from organ detect hormone molecules
-trigger response

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

hormones

A

chemical messages

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

endocrine system compared to nervous system

A

-slower
-longer lasting effect

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

rapid response hormones

A

insulin
adrenaline

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

slower hormones

A

growth
sex hormones

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

pituitary gland

A

-master gland
-found in brain
-secretes hormone into blood in response to changes in internal environment

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

pituitary gland and ADH

A

releases ADH
-controlled urine output by kidney

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

pituitary gland hormones other use

A

to stimulate other glands to release hormones

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

FSH = stimulating target organ

A

follicule stimulating hormone
-stimulates ovaries to produce oestrogen

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

TSH

A

stimulates thyroid gland to produce thyroxine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

thyroxine

A

controls metabollic rate

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

pituitary gland function

A

-growth in children
-sex hormones

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

pancreas

A

controls levels of glucose in blood
-via insulin and glucagon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Adrenal gland

A

produces adrenaline for stressful situations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

insulin use

A

-produced after eaten a meal
-decreases blood glucose level after it rises

stabilises glucose with narrow concentration range

17
Q

insulin and glucose

A

allows glucose to move into cells from blood

18
Q

insoluble store of glucose

A

glycogen in liver and muscles

19
Q

Glycogen

A

when stores in liver and muscles are full
-stored as lipids = too much is obesity

20
Q

glucagon

A

secreted by pancreas
-raises blood glucose level
-makes liver breakdown glycogen stores

21
Q

negative feedback for glucose in pacreas

A

-switches between two hormones
-keeps glucose levels constant

22
Q

Type 1 diabetes occurs in who

A

children and teens

23
Q

Type 1 diabetes happens because of

A

genetics

24
Q

Type 1 diabetes

A

-pancreas doesn’t make enough insulin
-glucose isn’t controlled after eating

25
Q

Type 1 diabetes - thirst cause

A

kidneys excrete glucose in urine

26
Q

Type 1 diabetes = lack of energy

A
  • glucose cannot enter cells = lack of energy
27
Q

Type 1 diabetes - loss of weight

A

-breaks down lipid stores as fuel instead

28
Q

Type 2 diabetes happens in who

A

-older ppl
-obese

29
Q

Type 2 diabetes

A

pancreas makes insulin but not enough
or cells don’t respond to it

30
Q

Treating Type 2 diabetes

A

-balanced diet
-exercise
losing weight

31
Q

Treating Type 1 diabetes

A

-insulin before meals = injected
-allows glucose to be taken in by cells and converted to glycogen

32
Q

why is insulin injected and not ingested

A

would be digested

33
Q

Type 1 diabetes - transplant treatment

A

-pancreas = risky
-pancreatic cells that make insulin - unsuccessful

34
Q

Drugs for treating diabetes

A

-make insulin work better
-make more insulin
-reduce glucose you absorb from gut

35
Q

negative feedback meaning

A

coordination of changes
in the internal environment of your body
with amounts of hormones produced

-maintains steady state

36
Q

negative feedback changes

A

if one factor increases = changes are made to restore usual level

initial change = opposite effect to restore

37
Q

Negative feedback: thyroxine

A

-produced by pituitary gland + TSH
-if levels fall brain detects this by sensors
-releases TSH

38
Q

Adrenaline causes (5)

A

-pupils to dilate
-faster heart rate and breathing rate
-glucagon = glucose for resp
-increase in mental awareness
-blood diverted from digestive system to brain/muscles

39
Q

adrenaline boosts

A

delivery of o2 and glucose to brain

GCSE AQA Biology (45 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions