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Unit 2 revision
By Mr Pike
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Last updated about 11 hours ago
34 questions
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Question 1
1.
What organelle is the stiff outer barrier of a plant cell?
cell membrane
cell wall
nucleus
chloroplast
Question 2
2.
What organelle contains the cell's DNA and is the control center of the cell?
ribosome
vacuole
nucleus
cytoplasm
Question 3
3.
What organelle is the structure that contains chlorophyll in a plant cell?
cell wall
mitochondria
chloroplast
ribosome
Question 4
4.
What is the green pigment in plants that captures energy from the sun?
chloroplast
chlorophyll
verde
green ink
Question 5
5.
Organelle in which proteins are made (protein synthesis).
nucleus
ribosome
mitochondria
vacuole
Question 6
6.
What is the main function of the cell wall
A. To protect and provide support for the cell
B. Build proteins
C. Convert solar energy to chemical energy
D. Takes in carbon dioxide
Question 7
7.
What is the main function of the cell wall
A. To protect and provide support for the cell
B. Build proteins
C. Convert solar energy to chemical energy
D. Takes in carbon dioxide
Question 8
8.
Which of the following are products of photosynthesis?
Glucose
Carbon dioxide
Oxygen
Water
Question 9
9.
Which of the following are reactants of photosynthesis?
Glucose
Carbon dioxide
Oxygen
Water
Question 10
10.
After processing of food in stomach, it moves into
large intestine
small intestine
Rectum
Anus
Question 11
11.
Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?
(a) Oesophagus, Large Intestine, Rectum
(b) Buccal cavity, Oesophagus, Rectum
(c) Buccal cavity, Oesophagus, Large Intestine
(d) Small Intestine, Large Intestine, Rectum
Question 12
12.
The acid present in the stomach
(a) kills the harmful bacteria that may enter along with the food.
(b) protects the stomach lining from harmful substances
(c) digests starch into simpler sugars.
(d) makes the medium alkaline.
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Question 22
22.
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Question 26
26.
Which enzyme works best in an acidic environment (pH less than 7)
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Question 28
28.
What happens to the enzyme when the pH increases to high?
Question 29
29.
Bile is produced by the _________________, and stored in the __________________.
gallbladder, small intestine
gallbladder, gallbladder
liver, gallbladder
gallbladder, liver
Question 30
30.
Which sequence shows the pathway that food takes in the digestive system?
stomach, esophagus, large intestine, small intestine
esophagus, stomach, large intestine, small intestine
stomach, esophagus, small intestine, large intestine
esophagus, stomach, small intestine, large intestine
Question 31
31.
Which of the following system breaks food into nutrients that can be used by the body?
circulatory
digestive
respiratory
reproductive
Question 32
32.
The digestion process begins in which of the following?
large intestine
mouth
small intestine
stomach
Question 33
33.
Which best describes the role of the esophagus in digestion?
It releases acid and mixes the food.
It aids in absorption of nutrients from food.
It carried food from the mouth to the stomach.
It carries food from the stomach to the intestines.
Question 34
34.
What does the stomach do for the body?
It chews food.
It breaks food down.
It swallows food.
None of the above
Question 13
13.
This is the
substrate
enzyme
active site
Question 14
14.
This is the
substrate
enzyme
active site
Question 15
15.
This is the
substrate
enzyme
active site
Question 16
16.
A
B
C
D
Question 17
17.
A
B
C
D
Question 18
18.
A
B
C
D
Question 19
19.
A
B
Question 20
20.
A
B
C
Question 21
21.
A
B
C
D
What are two factors that limit an enzyme's ability to function?
Question 23
23.
A
B
C
D
Question 24
24.
At what temperature does this enzyme work the fastest?
0
20
40
60
Question 25
25.
A
B
C
D
Question 27
27.
Which enzyme works best in a neutral environment?
chymrotrypsin
pepsin
both enzymes
