Sign up for FREE

Unit 2 revision cloned 5/18/2023

Last updated 3 months ago

34 questions

1

1

1

1

1

1

1

1

1

1

1

1

4

4

4

4

4

4

Question 1

1.

Question 2

2.

Question 3

3.

Question 4

4.

Question 5

5.

Question 6

6.

Question 7

7.

Question 8

8.

Question 9

9.

Question 10

10.

Question 11

11.

Question 12

12.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Question 29

29.

Question 30

30.

Question 31

31.

Question 32

32.

Question 33

33.

Question 34

34.

What organelle is the stiff outer barrier of a plant cell?

cell membrane

cell wall

nucleus

chloroplast

 What organelle contains the cell's DNA and is the control center of the cell?

ribosome

vacuole

nucleus

cytoplasm

 What organelle is the structure that contains chlorophyll in a plant cell? 

cell wall

mitochondria

chloroplast

ribosome

 What is the green pigment in plants that captures energy  from the sun? 

chloroplast

chlorophyll

verde

green ink

Organelle in which proteins are made (protein synthesis).

nucleus

ribosome

mitochondria

vacuole

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

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

Which of the following are products of photosynthesis?

Glucose

Carbon dioxide

Oxygen

Water

Which of the following are reactants of photosynthesis?

Glucose

Carbon dioxide

Oxygen

Water

After processing of food in stomach, it moves into

large intestine

small intestine

Rectum

Anus

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

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.

Question 13

13.

Question 14

14.

Question 15

15.

Question 16

16.

Question 17

17.

Question 18

18.

Question 19

19.

A

Question 20

20.

Question 21

21.

Question 22

22.

What are two factors that limit an enzyme's ability to function?

Question 23

23.

Question 24

24.

Question 25

25.

Question 26

26.

Which enzyme works best in an acidic environment (pH less than 7)

Question 27

27.

Question 28

28.

What happens to the enzyme when the pH increases to high?

Bile is produced by the _________________, and stored in the __________________.

gallbladder, small intestine

gallbladder, gallbladder

liver, gallbladder

gallbladder, liver

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

Which of the following system breaks food into nutrients that can be used by the body?

circulatory

digestive

respiratory

reproductive

The digestion process begins in which of the following?

large intestine

mouth

small intestine

stomach

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.

What does the stomach do for the body?

It chews food.

It breaks food down.

It swallows food.

None of the above

This is the

substrate

enzyme

active site

This is the 

substrate

enzyme

active site

This is the

substrate

enzyme

active site

A

B

C

D

A

B

C

D

A

B

C

D

B

A

B

C

A

B

C

D

A

B

C

D

At what temperature does this enzyme work the fastest?

0

20

40

60

A

B

C

D

Which enzyme works best in a neutral environment?

chymrotrypsin

pepsin

both enzymes