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year 10 Science Homework Week 5
By Naomi Arthur
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Last updated over 4 years ago
13 questions
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Question 1
1.
Where does aerobic respiration happen?
The cell
The ribosomes
The mitochondria
Question 2
2.
What is released during respiration?
Glucose
Energy
Long molecules
Question 3
3.
What is energy needed for?
Movement
The cell
The mitochondria
Question 4
4.
Which part of the body takes air from the trachea into each lung?
Lungs
Trachea
Bronchi
Bronchiole
Question 5
5.
Why do we have two bronchi?
One for oxygen and one for carbon dioxide
Because we have two lungs
If one stops working, we have a backup
Question 6
6.
Where does gas exchange take place?
Lungs
Trachea
Bronchi
Alveoli
Question 7
7.
What happens at the alveoli during gas exchange?
Oxygen diffuses from the alveoli into the blood and carbon dioxide diffuses from the blood to the alveoli
Oxygen diffuses to the alveoli from the blood and carbon dioxide diffuses to the blood from the alveoli
Oxygen and carbon dioxide diffuse into the blood and nitrogen diffuses from the blood to the alveoli
Question 8
8.
Diffusion needs to be as efficient as possible, which of the following is one of the main adaptations of the alveoli for this?
Small number of capillaries
Very thin capillary walls
Dry surface
Question 9
9.
The system for pumping blood within the body is called the…
Dual circulatory system
Bi-circulatory system
Double circulatory system
Question 10
10.
Why are there two phases to blood being pumped around the body?
Blood first needs to go to the lungs for gas exchange before sending the blood to the rest of the body
The body is large so it needs two phases in order to the blood to reach everywhere
Blood needs to go to the lungs for respiration and then to the rest of the body for gas exchange
Question 11
11.
The blood that is pumped
from the heart to the lungs
is…
Oxygenated
Deoxygenated
Question 12
12.
The blood that is pumped
from the lungs to the heart
is…
Oxygenated
Deoxygenated
Question 13
13.
The blood that is pumped
from the heart to the body
is…
Oxygenated
Deoxygenated