3.1 Biological Elements

Question 1

What are ions in solution called? (1 mark)

Answer 1

Electrolytes

Question 2

What is a positive ion called? (1 mark)

Answer 2

Cation

Question 3

What is a negative ion called? (1 mark)

Answer 3

Anion

Question 4

What elements do carbohydrates contain? (2 marks)

Answer 4

Carbon
Hydrogen
Oxygen

Question 5

What elements do lipids contain? (2 marks)

Answer 5

Carbon
Hydrogen
Oxygen

Question 6

What elements do proteins contain? (2 marks)

Answer 6

Carbon
Hydrogen
Oxygen
Nitrogen
Sulfur

Question 7

What elements do nuclei acids contain? (2 marks)

Answer 7

Carbon
Hydrogen
Oxygen
Nitrogen
Phosphorous

Question 8

Define the term monomer. (1 mark)

Answer 8

Small molecules that join together to make a long-chain molecule, called a polymer.

Question 9

Define the term polymer. (1 mark)

Answer 9

A long-chain molecule made up of linked molecules (called monomers) in a repeating pattern.

Question 10

What is the monomer in sugars? (1 mark)

Answer 10

Monosaccharides

Question 11

What is the monomer of a protein? (1 mark)

Answer 11

Amino acids