Bio Quiz 1

Question 1

Which molecule stores genetic information within living organisms and cells?

Answer 1

DNA

Question 2

Domains are the largest groupings of living things in Taxonomy. What is the correct list of the domains of life?

Hint: A, B & E

Answer 2

Archae, Bacteria & Eukarya

Question 3

What is not a correct characteristic of life?

Answer 3

All living things move

Question 4

Which is not a kingdom of eukaryotic organisms?

Answer 4

Archae

Question 5

Which domain(s) of life contain prokaryotic cells (or organisms)?

Hint: A & B

Answer 5

Bacteria and Archaea

Question 6

Which is a correct statement about eukaryotic and prokaryotic cells/organisms?

Answer 6

Eukaryotic cells are more complex than prokaryotic cells

Question 7

The atomic number of neon is 10. Therefore, which of the following is correct about an atom of neon?

Answer 7

It has 8 electrons in its outermost electron shell

Question 8

Nitrogen-14 and nitrogen-15 are isotopes found naturally on earth. Nitrogen-14 has a mass number of 14. Nitrogen-15 has a mass number of 15. Based on this information, one can conclude that nitrogen-15 has more protons and nitrogen-14.

Answer 8

More neutrons

Question 9

Which part of the atom determines how the atom behaves chemically and its reactivity?

Answer 9

Electrons in the valence shell

Question 10

An atom with ____ protons and 8 neutrons has a mass number of 14. This atom also has ____ electrons

Answer 10

6 protons
6 electrons

Question 11

The atomic number of Lithium is 3. Based on its electron distribution, an atom of lithium will have a total of __ electron(s) in the valence shell. It will also have __ unpaired electron(s) in its valence shell.

Answer 11

1

1

Question 12

Which statement is false about two atoms that form a non polar covalent bond?

Answer 12

The two atoms have partial charges (partial negative or partial positive)

Question 13

In a covalent bond, how do the two atoms interact together?

Answer 13

The atoms share electrons with one another.

Question 14

Ions are charged atoms or molecules. Ions have charges because they have _____ unequal numbers of protons and electrons. Cations are ____, whereas, anions are ____.

Answer 14

Unequal
Positively charged
Negatively charged

Question 15

Which describes Van Der Waals interactions best?

Answer 15

Attractions between different molecules due to electrons that are temporally unevenly distributed in these molecules.

Question 16

Why is sweating a useful cooling mechanism for animals like humans?

Answer 16

Water can absorb great amounts of heat when changing from its liquid state to its gaseous state

Question 17

Water is essential to life. Which of the following is NOT a property of water?

Answer 17

Water is a non polar molecule

Question 18

Why is ice (solid water) less dense than liquid water?

Answer 18

When water freezes, the water molecules move farther apart from each other to form more stable hydrogen bonds to become solid.

Question 19

You mix together two substances: acetone and water. The acetone dissolves completely in the water, resulting in a ____. The water is the ___ and the acetone is the ___.

Answer 19

Solution
Solvent
Solute