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Practice - Topic 2.1 - IB Style Questions

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Identify this molecule.

a)

Glucose

b)

Fructose

c)

Ribose

d)

Lactose

2.

Identify this molecule.

a)

Alpha-Glucose

b)

Beta-Glucose

c)

Maltose

d)

Glycogen

3.

What is this inorganic molecule called?

a)

Carboxyl

b)

Hydroxyl

c)

Carbon Dioxide

d)

Water

4.

What is the function of this sucrose molecule?

a)

Used in plants for energy storage and carbon transportation

b)

Used in plants to build cell walls

c)

Used in animals to makes cell membranes more stable

d)

Used in animals for long term energy storage

5.

What is the function of this fructose molecule?

a)

Found in fruit; a component of sucrose

b)

Found in fruit; a component of maltose

c)

Found in mammals; a component of glucose

d)

Found in mammals; a component of lactose

6.

What is the function of this lactose molecule?

a)

Main carbohydrate and structural component for mammals

b)

Main carbohydrate and structural component for plants

c)

Main carbohydrate and energy carrier in mammal milk

d)

Main carbohydrate and energy carrier in coconut milk

7.

This molecule is an example of which type of sugar?

a)

Monosaccharide

b)

Disaccharide

c)

Trisaccharide

d)

Polysaccharide

8.

Identify this molecule:

a)

Amine

b)

Glycine

c)

Nucleic Acid

d)

Generalized Amino Acid

9.

What do these four carbohydrate macromolecules have in common? Select ALL that apply.

a)

They are polymers made from repeating monomer subunits.

b)

They are polymers created by catabolic reactions.

c)

They contain glucose monomers.

d)

They contain fructose monomers.

10.

What is the function of amylose?

a)

Used for making cell walls in plants

b)

Used for making cell membranes in plants

c)

Energy storage for plants, a component of starch

d)

Energy storage for plants, a component of cellulose

11.

What is the function of amylopectin?

a)

Used for making cell walls in plants

b)

Used for making cell membranes in plants

c)

Energy storage for plants, a component of starch

d)

Energy storage for plants, a component of cellulose

12.

What is this molecule used for in animals?

a)

Lactose –it is the main carbohydrate found in milk.

b)

Glucose - an energy source for plants and animals. It is found in human blood.

c)

Maltose - an example of a disaccharide.

d)

Glycogen - a polysaccharide of glucose. Used for energy storage in animals.

13.

What is special about this molecule of triglyceride?

a)

It holds more energy per gram than a carbohydrate.

b)

It is an inorganic molecule, it doesn't contain Carbon.

c)

It is an example of a disaccharide.

d)

It is the main carbohydrate found in milk.

14.

Identify this molecule:

a)

Amino acid

b)

Fatty Acid

c)

Ribose

d)

Galactose

15.

What is the name of this inorganic molecule?

a)

Glucose is an energy source for plants and animals. It is found in human blood.

b)

Carbon dioxide is an inorganic molecule - it doesn't contain hydrogen (organic molecules contain both C & H).

c)

Water molecules are inorganic molecules, they don’t contain carbon

d)

Lactose is the main carbohydrate found in milk.

16.

What is the function of this molecule?

a)

It’s an inorganic molecule, it doesn't contain carbon.

b)

Lactose - the main carbohydrate found in milk.

c)

Maltose - an example of a disaccharide

d)

Cellulose molecules - form the cell walls of plant cells. They can be very long.

17.

Amino acids are often drawn with a generalized R-group as shown below. What does the R-group represent?

a)

A polar side chain.

b)

A molecular structure which is different in each amino acid.

c)

The element Rubidium.

d)

An amphipathic region of the molecule.

18.

Which of the following reactions occurs when a dipeptide is formed from amino acids?

a)

Hydrolysis

b)

Oxidation

c)

Condensation

d)

Denaturation

19.

Which of the following is an organic compound found in both plant and animal cells?

a)

Pyruvate

b)

Carbon dioxide

c)

Water

d)

Cellulose

20.

What is meant by cell metabolism?

a)

The breakdown of glucose through enzymes catalysed reactions of respiration.

b)

The enzyme catalysed reactions which control of vitamins and minerals in the cell.

c)

All of the enzyme catalysed reactions which take place in the cell.

d)

The production of proteins by a chain of enzyme catalysed reactions.