Brainscape's Knowledge GenomeTM

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


See full index

Gcse Biology > B4 > Flashcards

B4 Flashcards

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

Blood

A

Based on liquid called plasma made up of red blood cells, white blood cells and platelets

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

Red blood cells

A

Pick up oxygen lungs and carry to cellswhere it is needed

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

Red blood cells adaptation

A

Bioconcave discs, packed with haemoglobin that binds to oxygen and they have no nucleus making more space for haemoglobin

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

White blood cells

A

Form part of body’s defence system against microorganisms

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

Platelets

A

Help bllod clot at site of wound stopping you bleeding ot death

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

Blood vessles

A

Arteries, veins and cappilaries

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

Arteries

A

Carry blood from heart to organs of your body

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

Veins

A

Carry blood form organs towards heart

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

Capillaries

A

Form tiny vessles lining arteries and veins

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

Structure of heart

A

Left ventricle, right ventricle, valves, right atrium, left atrium, pulmonary vein from lungs, pumonary artery to lungs, aorta to body and vena cava from body

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

Job of respiratory system

A

Gas exchange

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

Respiration

A

Release of energy from glucose to oxygen. Happens in every cell where as breathing only happens in lungs

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

Gas exchange system

A

Mouth and nose, bronchioles, bronchus, diaphragm, alveoli, lungs and trachea

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

How are lungs adapted to maxmise gas exchange

A

Made up of clusters of alveoli providing large surface area-makes diffusion of oxygen and co2 efficient
Alevoilc full of blood capileries which allow diffusion to take place over short distance.
Maintain steep concentration gradient both ways making gas exchnage rapid anf effective

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

Phloem

A

Living tissues that transport sugars by photosynthesis from leaves to rest of plant.(translocation)

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

Xylem

A

Transport tissue in plant that carries water and mineral ions from soil to stem and leaves

17
Q

Factors affecting transpiration

A

Temperature, number of leaves, air flow, humidity and light intensity

18
Q

Transpiration

A

Plants lose water vapour through stomata and water evaporates from cell and passes out of leaf through stomata diffusion

19
Q

Circulatory system

A

Right ventricle- pumps deoxygenated blood to lungs and takes in oxygen then blood returns to heart.
Left ventricle pumps oxygenated blood around other organs of body.

20
Q

How does heart contract to pump blood around body

A

heart’s valves-direction
four chmabers-pump blood around
Blood flows in via left and right atrium from vena cava and pulmonary vein. They contract pushing blood in ventricles. The ventricles contract forcing blood into pumonary artery and aorta out of heart

21
Q

Adaptations of arteries

A

Blood pumped in at high pressure so walls strong and elastic

22
Q

Adaptations of capillaries

A

Permeable walls so substances can diffuse in and out. Wall only one cell thick increasing rate of diffusion by decreasing distance over whenit occurs

23
Q

Adaptation of Veins

A

Blood at low pressure so dont need thick walls. Have valves to keep blood flow in right direction

24
Q

Adaptations of red blood cells

A

Bioconcave disc ehich gives large surface area for absorbing oxygen. No nucleus allowing more room to carry oxygen. Contain Red pigment called haemoglobim

25
Q

Haemoglobin

A

In lungs it binds to oxygen to become oxyhaemoglobin. In tissue opposite happens and oxygen and haemoglobin split to release oxygen to cells

26
Q

What are plants made up of

A

Prgans like stems, roots and leaves

27
Q

How are leaves adapted for effiecinet gas exchange

A

Stomata which let Co2 diffuse directly into leaf

28
Q

Stomata

A

Open and closes to allow gas exchange, take in Co2 and release oxygen and control water lost by transpiration

29
Q

How can we help the heart

A

Artificial pacemakers, artificial hearts

Gcse Biology (6 decks)

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