Biochemistry/water

Question 0

What is a covalent bond?

Answer 0

When electrons are shared

Question 1

Why is water considered a great solvent?

Answer 1

Polarity

Question 2

What is an example of a covalent bond?

Answer 2

Water

Question 3

What is an ionic bond?

Answer 3

When electrons are given or taken.

Question 4

What is an example of an ionic bond?

Answer 4

Salt

Question 5

What is a hydrogen bond?

Answer 5

A weak attraction between a hydrogen atom and a Florine, Nitrogen, or Oxygen atom.

Question 6

Draw a hydrogen bond.

Answer 6

Draw a hydrogen bond.

Question 7

What is polarity?

Answer 7

When something has two opposite poles.

Question 8

What is a mixture?

Answer 8

Combination of two or more substances

Question 9

What is a colloid?

Answer 9

When particles don’t settle out.

Question 10

In soda what is the solute and the solvent?

Answer 10

Solute is syrup.

Solvent is carbonated water.

Question 11

What is activation energy?

Answer 11

The energy that starts a reaction.

Question 12

What is a catalyst?

Answer 12

Speeds up a chemical reaction.

Question 13

What is an enzyme?

Answer 13

A biological catalyst.

Question 14

pH is the measure of what substance in a solution?

Answer 14

H+

Question 15

On pH scale which numbers represent an acid?

Answer 15

0-6.9

Question 16

What are the three unique property’s of water and what makes it unique?

Answer 16

1-universal solvent/it dissolves everything.
2-cohesion/surface tension
3-adhesion/capillary action

Question 17

Carbohydrates

Answer 17

(Monosaccharides)
~stores energy
~provides structural support

Question 18

Lipids

Answer 18

(Cholesterol, fatty acids, oils)
~stores energy
~provides barriers

Question 19

Necleic acid

Answer 19

(Nucleotide)

~stores and communicates genetic information.

Question 20

Proteins

Answer 20

(Amino acids)
~transport substances
~speed reactions
~provides structural support
~make hormones