Redo Flashcards Preview

A.P bio > Redo > Flashcards

Flashcards in Redo Deck (15)
Loading flashcards...
0
Q

The negative charge at the end of a h2o molecule is attracted to the positive charge of another h2o molecule, what is this,

A

A hydrogen bond

1
Q

In a single molecule of water the two hydrogen bonds are bonded to a single oxygen atom by…

A

Polar covalent bonds

2
Q

How the properties of water allow movement through vessels in a plant

A

Water evaporates from the leaves, cohesion causes the water that is leaving to pull on the molecule behind it. Adhesion causes water to stick to the plant walls, contributes to the capillary action in the narrow vessels.

3
Q

Why does an ice cube cool a drink

A

Because the kinetic energy in the drink increases

4
Q

Why does ice float?

A

A hydrogen bonding

5
Q

Polymers of polysaccharides, fats, and proteins are all synthesized from monomers by which process

A

The removal of water (dehydration reactions)

6
Q

Summarize the reaction between dehydration reactions and hydrolysis

A

Dehydration reactions assmeble polymers

Hydrolysis breaks down polymers

7
Q

Class of biological molecules known as lipids

A

They are insoluble in water

8
Q

20 diff amino acids found in polypeptides exhibit different chemical & phys properties bc of difference of

A

Side chains ( r groups)

9
Q

What maintains the secondary structure of a protein

A

Hydrogen bonds

10
Q

What do enzymes do

A

Increase the rate of a reaction

11
Q

What can enzymes do?

A

For reactions. They catalyze, they are used many types for a specific reaction, proteins function as catalysts

12
Q

X y z a. A binds to the enzyme that converts x to y at a position remote from its active site. This binding decreases the activity of the enzyme

A

X is substrate

A is the allosteric inhibitor

13
Q

If an enzyme is added to a solution where it’s substrates and products are in equilibir what would occur?

A

Additional product would be formed

14
Q

Why does the disc ride faster?

A

The higher substrate concentration speeds the reactions