Chemistry of life

Question 1

What are atoms?

Answer 1

Smallest units of matter

Question 2

What are elements?

Answer 2

Substances that cannot be broken down into a simpler form

Question 3

What is a molecule?

Answer 3

When 2 or more atoms share electrons

Question 4

How does an atom become an ion?

Answer 4

When it gives up or gains electrons

Question 5

What is an ionic bond?

Answer 5

When 2 ions are attracted to each other due to their opposite charges

Question 6

What is a covalent bond?

Answer 6

When atoms form a molecule by sharing electrons in their outer shell

Question 7

What is a hydrogen bond?

Answer 7

Polar covalent bond that from between H atoms

Question 8

Define an inorganic compound.

Answer 8

Usually lack C, structurally simple + held together by ionic or covalent bonds

Question 9

Define an organic compound.

Answer 9

Always contain C + usually H + have covalent bonds

Question 10

What do carbohydrates consist of?

Answer 10

C, H, O

Question 11

What do lipids consist of?

Answer 11

C, H, O

Question 12

What do proteins consist of?

Answer 12

C, H, O, N + sometimes S