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BIOCHEM (FINALS) > QUIZ > Flashcards

QUIZ Flashcards

1
Q

Give the four nitrogenous bases in DNA

A

Adenine, Thymine, Cytosine, Guanine

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2
Q

What bases should be in pair in DNA

A

Adenine-Thymine
Cystosine-Guanine

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3
Q

Types of RNA molecules

A

Heterogenous nuclear RNA (hnRNA)
Messenger RNA (mRNA)
Transfer RNA (tRNA)
Ribosomal RNA (rRNA)
Small nuclear RNA (snRNA)

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4
Q

Carries an amino acid to the ribosome

A

tRNA

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4
Q

It is a major component of ribosome

A

rRNA

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4
Q

It is a copy of the information in a gene

A

RNA

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5
Q

The sugar molecule in a nucleotide

A

Pentose sugar

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6
Q

The composition of nucleotides

A

Phosphate group, Pentose sugar and base

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7
Q

The composition of nucleosides

A

Sugar and base

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8
Q

Identify the purine base of nucleic acid

A

Adenine, Guanine

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9
Q

The two strands in DNA double helix are joined by?

A

Hydrogen Bond

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10
Q

What base is paired with adenine to form hydrogen bonds in RNA

A

Uracil

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11
Q

On what molecules would you find a anticodon?

A

tRNA

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12
Q

TRUE OR FALSE
a-keratin is helical

A

FALSE

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13
Q

TRUE OR FALSE
collagen is helical

A

TRUE

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14
Q

TRUE OR FALSE
hemoglobin has a quaternary structure

A

TRUE

15
Q

TRUE OR FALSE
a-keratin is β pleated structure

A

TRUE

16
Q

In most of the naturally occurring mono-unsaturated fatty acids, the double bond will be placed between

A

C9-C10

17
Q

which of the following amino acids is the most soluble in water at pH 7.0

A

GLUTAMATE

18
Q

TRUE OR FALSE
The hydrophilic/hydrophobic character of amino acid residues is important to secondary structure

A

FALSE

19
Q

What is the main difference between saturated and unsaturated fatty acids

A

Presence of double bonds

20
Q

Which of the following factors is NOT responsible for the denaturation of proteins

Heat
Charge
pH change
Organic solvents

A

CHARGE

21
Q

which of the following is responsible for specifying the 3D shape of protein

A

Interaction with other polypeptide

22
Q

proteins are polymers of ____________

A

amino acid

23
Q

which of the following disorders is caused by the deficiency of proteins

A

weight loss
muscle fatigue
loss of muscle strength

24
Q
A

BIOCHEM (FINALS) (5 decks)

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