B10 + B11

Question 1

Reaction time required practical outcome

Answer 1

Your reaction times increase when you are under the influence of caffeine.

Question 2

Communication systems

Answer 2

Nervous and Hormonal

Question 3

Negative feedback format

Answer 3

Stimulas - Receptor - Communication Pathway - Effector - Response

Question 4

Homeostasis

Answer 4

keeping everything the same internally. Regulation of the internal conditions of a cell to maintain optimum conditions for function in response to internal changes

Question 5

Rexlex actions

Answer 5

Blinking, Coughing, Knee jerk

Question 6

What do relex actions do

Answer 6

Prevent harm to the body by responding rapidly to stimuli

Question 7

Neurone in spine

Answer 7

Sensory and Motor neurone

Question 8

Synapse

Answer 8

Junction between two neurones across which electric signals must pass

Question 9

What are endotherms

Answer 9

Birds and mama.s which can regulate their own temperature

Question 10

What are ectotherms

Answer 10

Needs the enviroment to survive, reptiles and amphibians

Question 11

How does your eye focus on a near object

Answer 11

Cillary muscle contracts - suspensory muscle lossens - the lens become thicker and refracts light slowly

Question 12

How to focus on a distant object

Answer 12

the ciliary muscle relax - the suspensory ligaments are pulled tight - the lens is then pulled thin and only slightly refracts light rays.

Question 13

Myopia

Answer 13

short sightedness - you can see close objects well but long far objects will be blurred

Question 14

How to treat myopia

Answer 14

To treat it you can wear glasses with concave lens’

Question 15

Hyperopia

Answer 15

long sightedness - can focus clearly on distant objects but close objects appear blurred.

Question 16

How to treat hyperopia

Answer 16

Wear glasses convex lenses

Question 17

Hormone examples ( 5 )

Answer 17

Insulin 
Testosterone 
Oestrogen 
Advencliue 
Thyroxine

Question 18

Pituitary use

Answer 18

controls growth in children, stimulates the thyroid glands to make thyroxine to control the rate of metabolism .

Question 19

Thyroid use

Answer 19

Contols the metabolic rate of the body

Question 20

Pancreas use

Answer 20

Contols the level of glucose in the blood

Question 21

Adrenal use

Answer 21

Prepares the body for stressful situations -FIGHT OR FLIGHT

Question 22

Ovaries use

Answer 22

Controls the development of the female secondary sexual characteristics, involved in menstrual cycle

Question 23

Testies use

Answer 23

Contols the development of the male sexual characteristics involved in production of sperm

Question 24

Type 2 diabetes in the uk percentage

Answer 24

90% of all cases in the uk.

Question 25

What is Type II diabetes

Answer 25

Type two diabetes occurs when the body doesn’t produce enough insulin to function properly

Question 26

What is type one diabetes

Answer 26

Type one diabetes is where the pancreas produces little or no insulin meaning sugars and glucose cannot be used

Question 27

What is adrenaline

Answer 27

not involved in a clear negative feedback system, your adrenal glands(top of your kidneys) secrete a lot of adrenaline that is carried rapidly round the body.

Question 28

What does adreneline cause your body to do (5)

Answer 28

Heart rate and breathing increase
Stored glycogen in the liver to be converted to glucose for respiration
Mental awareness to increase
Pupils dilate to let more light in
Blood diverted away from digestive system , to big muscles