transport

Question 1

transpirsation GENERLA METHOD

Answer 1

0. use a bubbe potomoeter
1. cut shoot underwater at an angle to prevent air into xyle,
2. assemble underwater so no air present
3. check water and air tight
4. dry leaves and leave time fro them to acclimatise
5. remove from beaker of water to reintroduces bubble and then place it back.

Question 2

how do u hchnage the LI for the TRANS method??

Answer 2

moving lamp/futher closer away from experiment set uo

Question 3

how do u change the wind speed for the TRANs method??

Answer 3

using a fan & different speed settings

Question 4

hwo do u change the humidity for the trans method??

Answer 4

placing a plastic bag w varied voumes of water over plant

Question 5

how do u change the tempp for the TRANS method?

Answer 5

romm temp

Question 6

composition of blood

Answer 6

rbc = 44
plasma = 55
plateltes + wbc = 1

Question 7

describe blood clot formation

Answer 7

• platelets wtick to wound and to each other
• produce a substamce that produces a soluble plasma protein = fibrogen
• grows into tiny fibres = fibrens
• fibrins catch rbs –> clot forms

Question 8

describe the the normal immune response

Answer 8

-pathogen enters
-lymphocytes sense the pathogen’s antigens and produce anitbodies for that specific antigen
- they multiple rapidly to produce more antibodies
- anitbodies bind to pathogen = kill

Question 9

how do antibodies kill the antigens (pathiogens)

Answer 9

• bacteia = bursts
• causes bacteria to stick 2gether = easier for phagocytpsis
• neutralises toxins produces

Question 10

descirbe the secondary immune response = teiggered by vaccines

Answer 10

lmphacttes stay in blood and turn into memory cels, giving immunity to that specific pathogen

if pathogen reenters, they recognize it faster and mass produce antibodies quizer = quicker reaction itme

Question 11

descirbe phagocyctoses

Answer 11

the process of phagocystes emgufing bacteria & destroying it

1. engulfing stage
2. forms a vesicle
3. digestive enzymes released to break down pathogen

Question 12

how deos adrenline change the heart rate?

Answer 12

blood vessels dialaye = protiositisng blood flow

Question 13

artery blurt

Answer 13

• carries blod AWAY from heart
• O2
• high pressure
• thick msucle walls + thin lumen
• walls stretch w beat to force blood forwards

Question 14

vein blurt

Answer 14

• carries blood TO heart
• != O2
• low pressure
• thin muscle wall + large lumen
• valves to prevent backflow of blodo

Question 15

capillaries

Answer 15

• where artery = veins
• carry blood to all cells
• very narrow
• thin walls = shorter diffusion rate

Question 16

blood vessel to and from heart

Answer 16

to = vena cava
from= aorta

Question 17

blood vessel to and from kidneys

Answer 17

to = renal artery
from = renal vein

Question 18

blood vessel to and from liver

Answer 18

to = hepatic artery
from = hepatic vein

Question 19

blood vessel to luver from digestive system

Answer 19

hepatic portal vein