B1

Question 1

what is EAR and what is the calculation for it?

Answer 1

EAR: estimated average daily requirement of protein.

EAR of protein (g)= 0.6xbody mass (kg)

Question 2

What is BMI and how do you calculate it?

Answer 2

BMI: Body mass index of a person based on your height and weight.
BMI= mass(kg
————
height^2 (m)

Question 3

To whom isn’t BMI relevent?

Answer 3

under 18s
pregnant women
breastfeeding women
body builders
body frame

Question 4

What do humans ‘become’ to some things?
What does bacteria ‘become’ to some things?
(think about health)

Answer 4

Humans become immune

Bacteria become resistant

Question 5

What is passive immunity?

Answer 5

Passive immunity=antibodies injected to fight the pathogen

Question 6

What is active immunity?

Answer 6

Active immunity=when memory cells remember what antibodies to produce when they discover the pathogen.

Question 7

What do phagocytes do?

Answer 7

in your blood try to find a pathogen and then engulf and digest the pathogen (essentially an antibody)

Question 8

what is the sequence for receptors?

Letters to help too?

Answer 8

stimulus>receptor>sensory neurone>CNS+brain>motor neurone>effector muscle>response
S R SN B MN EM R

Question 9

Sequence the ‘Eye’s’ response to light:

Answer 9

light rays enter eye>cornea refracts light>iris contracts how much light enters the eye>Lens focuses light onto the retina>retina receives light by stimulating light receptors>triggers optic nerve impulse>brain processes impulses.

Question 10

define accommodation:

Answer 10

the focusing of the eye on an object’s differences

Question 11

elongated eye leads to …

Answer 11

short sited -myopia-biconcave lense

Question 12

too shorter an eye leads to…

Answer 12

long sited-hypermetropia-biconvex lense