Bio Quiz 2

Question 1

The subatomic particles that play the greatest role in cellular chemical reactions are

Your Answer for Question 1

isotopes.

Comments

The correct answer is: electrons. Max Score: 5
Actual Score: 0

Question 2

The structural unit that retains the properties of an element is the

Your Answer for Question 2

atom.

Comments

Correct!!

Max Score: 5
Actual Score: 5

Question 3

Which of the following are found in the nucleus of an atom?

Your Answer for Question 3

A and B

Comments

Correct!!

Max Score: 5
Actual Score: 5

Question 4

The component of an atom or molecule that is most important in determining its chemical properties is the

Your Answer for Question 4

electron.

Comments

Correct!!

Max Score: 5
Actual Score: 5

Question 5

What is the maximum number of electrons the innermost shell can hold?

Your Answer for Question 5

2

Comments

Correct!!

Max Score: 5
Actual Score: 5

Question 6

An atom becomes an ion when

Your Answer for Question 6

it gains or loses electrons.

Comments

Correct!!

Max Score: 5
Actual Score: 5

Question 7

The symbol 3CO2 represents

Your Answer for Question 7

three atoms of carbon and one molecule of oxygen.

Comments

The correct answer is: three molecules of carbon dioxide.

Max Score: 5
Actual Score: 0

Question 8

In water, hydrogen bonding occurs between the hydrogen and

Your Answer for Question