Biochemistry Unit Test. Flashcards

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1
Q

Active Site

A

Region of an enzyme where the substrate undergoes a chemical reaction to produce a product

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2
Q

Amino Acid

A

Polymers of molecules that make up proteins

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3
Q

Catalyst

A

Substance that speeds up the rate of a chemical reaction

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4
Q

Chemical reaction

A

Process that changes a substance into a new one

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5
Q

Denature

A

When an enzyme’s structure is damaged

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6
Q

Activation Energy

A

Energy needed to get a reaction started

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7
Q

Enzyme

A

Biological catalyst

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8
Q

Monomer

A

What makes up a polymer

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9
Q

Monosaccharide

A

A simple sugar (a sugar monomer)

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10
Q

Atom

A

Basic unit of matter

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11
Q

Compound

A

Substance formed by chemically combining two or more substances

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12
Q

Atomic number

A
# at top of square
#of protons/electrons
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13
Q

Mass number

A

of protons and neutrons

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14
Q

Cohesion

A

When a substance is attracted to molecules of the same substance

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15
Q

Adhesion

A

When molecules of one substance is attracted to molecules of a different substance

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16
Q

Carbohydrates

A

Ex: bread

Monomer/polymers: monosaccharides/polysaccharides

Function: main source of energy, some plants/animals use this for structural purposes

17
Q

Lipids

A

Ex: olive oil

Monomer/polymer: fatty acids/ glycerol

Functions: 
1. Long term energy storage
Protection against:
2. Hear loss
3. Water loss
4. Physical shock
5. Chemical messengers (hormones)
6. Major component of membranes
18
Q

Protein

A

Ex: meat

Monomer/polymer: amino acids

Functions:

  1. Storage
  2. Transport
  3. Regulatory
  4. Movement
  5. Structure
  6. Enzymes
19
Q

Nucleic Acid

A

Ex: RNA/DNA

Monomer/polymer: nucleotides

Function: to store/transmit hereditary or genetic information

20
Q

Polymer

A

Large compound made of monomers

21
Q

Polymerization

A

How macromolecules are formed (large compounds are formed by joining smaller compounds)

22
Q

Polysaccharide

A

Large macromolecules formed from monosaccharides

23
Q

Product

A

Element/compound produced by a chemical reaction

24
Q

Reactant

A

Element/compound that enter into a chemical reaction

25
Q

Restriction Enzymes

A

Enzymes that act as scissors and cut DNA

26
Q

Substrate

A

The reactants of the enzyme-substrate reaction

27
Q

Endothermic

A

Absorbs heat

28
Q

Exothermic

A

Releases heat

29
Q

Saturated

A

When the fatty acids hold the maximum amount of hydrogen atoms

30
Q

Unsaturated

A

When there is at least one carbon-carbon double bond on a fatty acid