Marta is running, Sam is sitting on a chair. Suggest two things Marta will need more of than Sam. (2)
Question 2
2.
Suggest one way Marta's body will change when she runs.
Question 3
3.
Name two substances aerobic respiration produces in humans. (2)
Question 4
4.
Question 5
5.
1
Question 6
6.
There are no units given in the table. Suggest suitable units for the volume of air.
1
1
1
Question 9
9.
Describe two features that increase the speed of gas exchange in the air sacs. (2)
1
1
Question 11
11.
Name one food made using bacteria.
1
1
Question 13
13.
1
1
1
1
1
Question 19
19.
The red panda is an endangered mammal. Red pandas live in the trees in the forest in China. Explain one way of making sure the red panda does not become extinct.
Question 20
20.
Give one reason why we should try to keep a high biodiversity.
Question 21
21.
Question 22
22.
1
Question 23
23.
Name this specialised plant cell
1
1
Question 25
25.
Name this process
1
1
1
Which gas is needed for respiration in plants?
Oxygen
Nitrogen
Hydrogen
Carbon dioxide
Which organs get shorter and thicker to make the lung volume greater?
Bronchi
Bones
Alveoli
Muscles
Question 7
7.
What is the mean average volume of air per breath? show your working (2)
Question 8
8.
Question 10
10.
Question 12
12.
State two resources bacteria need to grow. (2)
Describe what the pie chart of the scalp shows.
Question 14
14.
Question 15
15.
Suggest an area inside the body where you would expect to find bacteria.
Question 16
16.
Most bacteria are decomposers. Describe what a decomposer does.
Question 17
17.
What is the name for organisms made of only one cell.
Question 18
18.
Which part of a cell are chromosomes found in?
A. cell surface membrane
B. nucleus
C. cyctoplasm
D. cell wall
Name one substance found in chromosomes.
A. DNA
B. Chlorophyll
C. Fibre
D. haemoglobin
Question 24
24.
What is the function of this cell?
Question 26
26.
State where this process happens
Question 27
27.
Question 28
28.
Which two gases are exchanged in the air sacs? tick one box
A. oxygen and carbon dioxide
B. nitrogen and oxygen
C. hydrogen and carbon dioxide
D. carbon dioxide and nitrogen
What does the bacterium use part X for?
A. Fighting
B. Swimming
C. feeding
D. reproducing
What percentage of underarm bacteria were Campylobacter?
A. 15%
B. 25%
C. 50%
D. 75%
Which of these kingdoms contains only organisms which are made of only one cell?