stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Amersham GCSE B2 Biology Flashcards | StudBud
Explore
/
Amersham GCSE B2 Biology
Amersham GCSE B2 Biology
35 terms
·
StudBud Administration
·
44 plays
Quiz for GCSE Biology Unit 2
Flashcards
35 cards
F
Practice quiz
P
Host live
L
Questions
35
Answers
1
What do ions do in the body?
keep muscles healthy
make us sweat
make us into charged particles
get rid of creases in clothes
2
What does a potometer measure?
metabolic rate
rate of respiration
rate of reaction
rate of transpiration
3
Transpiration is driven by...
the evaporation of water from the leaves
the condensation of water from the leaves
the respiration of water from the leaves
4
The movement of particles from a low to a high concentration which requires energy is...
diffusion
osmosis
respiration
active transport
5
Which blood vessel has the largest lumen?
artery
capillary
vein
6
Which region of the brain controls the body temperature?
hypothalamus
pituitary gland
homestasis
hippopotamus
7
What does haemoglobin do?
carry oxygen from lungs to tissue
carry CO2 from lungs to tissue
carry CO2 from tissue to lungs
carry oxygen from tissue to lungs
8
Give a feature of a good exchange surface
thin surface so shorter diffusion distance
lots of particles to create energy
large surface area for diffusion
good blood supply to maintain concentration gradient
9
Name one factor that can affect the rate of transpiration
light
humidity
temperature
wind
10
This percentage is made up of...
white blood cells
red blood cells
platelets
water
11
Blood returns to the heart through...
veins
arteries
12
Give one main function of blood
regulation - maintains body temperature
transport - carries substances & cells around the body
defense - fights infections
protection - from infection and blood loss
13
Which blood vessel has the highest pressure?
veins
capillaries
arteries
14
Transpiration is the movement of...
particles from the leaves to the roots
water from the roots to the leaves
particles from the roots to the leaves
water from the leaves to the roots
15
Disadvantages of an artificial heart?
risk of infection
you could die spontaneously
has a limited lifespan
it's uncomfortable
16
Which blood vessel carries both oxygenated and deoxygenated blood?
capillaries
veins
arteries
17
Any temperature above 35 degrees is...
hyperthermia
hypothermia
18
Blood flows from the heart to the organs through...
veins
arteries
19
Why do veins have valves?
to prevent pooling
to prevent cholesterol
to prevent backflow
20
Which piece of equipment is this?
potatometer
potemeter
potameter
potometer
21
Which part of the heart is thickest?
left ventricle
right atrium
left atrium
right ventricle
22
What do platelets do in the bloodstream?
help blood to clot at the site of a cut
transport oxygen
transport urea
transport CO2
23
Any temperature below 35 degrees is...
hypothermia
hyperthermia
24
Which blood vessels have valves?
veins
arteries
capillaries
25
In the double circulatory system to blood enters the...
right ventricle
right atrium
left ventricle
left atrium
26
Why is caffeine added to sports drinks?
to make us go to sleep
to make us more alert
to wake us up
it's cheap
27
The scientific name for controlling body temperature is...
hemostasis
thermoregulation
homeostasis
hypothalamus
28
What happens when you inhale?
diaphragm contracts, ribs move up and out
diaphragm relaxes, ribs move up and out
diaphragm contracts, ribs move down and in
diaphragm relaxes, ribs move down and in
29
Advantages of an artificial heart?
you don't have to wait for a donor
allows you to live longer
you don't have feelings
it's uncomfortable
30
Osmosis is the movement of...
particles from a low to a high concentration
particles from a high to a low concentration
water particles from a high to a low concentration
water particles from a low to a high concentration
31
Formula for respiration in plants?
oxygen + glucose -> CO2 + water
CO2 + water -> oxygen + glucose
oxygen + water -> CO2 + glucose
water + glucose -> CO2 + oxygen
32
Platelets are...
small fragments of blood
small fragments of cells
large fragments of cells
large fragments of blood
33
Cells make up __% of the blood
55
65
45
34
Which is the unit for the amount of energy transferred?
TAP
PTA
ATP
APT
35
What does plasma do in the bloodstream?
transports CO2
transports oxygen
transports urea
helps blood to clot at the site of a cut
