CB8 Edexcel biology
Authored by Jess Day
10th Grade
Used 87+ times
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20 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which 2 options increase the rate of diffusion?
When surfaces are thin
A large surface area
A small surface area
When substances have a long distance to travel
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What structure increases the surface area of the lungs?
Capillaries
Alveoli
Lymphocytes
Ventricles
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a structure has a larger surface area to volume ratio what will happen to the rate of diffusion?
The rate will increase
The rate will decrease
There will be no change
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do veins contain valves?
To stop blood from flowing in the wrong direction
To help the flow of blood
To make sure enough blood is circulating the body
To stop blood flow in case you cut yourself
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of phagocytes
They release antibodies
They carry oxygen in the blood
They transport dissolved substances in the blood
They engulf and digest pathogens
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of lymphocytes
They release antibodies
They carry oxygen in the blood
They transport dissolved substances in the blood
They engulf and digest pathogens
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of red blood cells
They release antibodies
They carry oxygen in the blood
They transport dissolved substances in the blood
They engulf and digest pathogens
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