Biochemistry Flashcards

1
Q

All of the following are carbohydrates except?

  • starch
  • glycogen
  • chitin
  • cholesterol
A

Cholesterol

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2
Q

The structure contains which functional group
acetone (CH3-C=O-CH3)

  • aldehyde
  • ketone
  • amino
  • carboxyl
A

Ketone

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3
Q

Which of the following can have a quaternary structure?

  • fatty acid
  • protein
  • polysaccharide
  • DNA
A

Protein

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4
Q

Fatty acids that are unsaturated have?

  • an amino group
  • a double bond
  • an excess of protons
  • a carboxyl group
A

An amino group

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5
Q

Draw a monosaccharide, a disaccharide, a lipid and a polymer.

A

Draw and check against google.

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6
Q

Which of the following can have a quaternary structure?

  • A fatty acid
  • Protein
  • Polysaccharide
  • DNA
A

Protein

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7
Q

An organic compound is one that:

A

Contains carbon

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8
Q

Which of the following elements is the LEAST abundant in living organisms?
- oxygen
- nitrogen
- phosphorous
- sodium

A

Sodium

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9
Q

What are used in PET scans?

A

Isotopes

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10
Q

Carbon can form ___ separate bonds with other elements

A

4

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11
Q

The cohesion of water is caused by?

A

Hydrogen bonds

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12
Q

Without the presence of enzymes, the reactions necessary to sustain life would require ___________________ in order to occur:
- larger cells
- higher temperatures
- larger proteins
- smaller atoms

A

Higher temperatures

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13
Q

Which of the following could be used to increase the reaction rate beyond the plateau (all enzymes are occupied)?

A

Increase the temperature

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14
Q

The active site is?

A

The part of the enzyme where the substrate binds

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15
Q

When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as a result of what reaction?

A

peroxide being broken into water and oxygen

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16
Q

Some people cannot digest milk products because they lack a specific enzyme. Which enzyme would be used to break down the lactose in milk?

A

Lactase

17
Q

In what way can you increase the rate of reaction?

A

Adding more enzymes, increase the temperature or introducing a catalyst

18
Q

Enzymes are composed of what organic molecule?

A

Proteins