Question # 1

The amino acids are mainly different from each other due to the type and nature of.

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R-Group

Amino group

Carboxyl group

Peptide bond

Human tissues contains about 20% water in.

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Brain cells

Bone cells

Kidney cells

Skin cells

The melting point of palmitic acid is

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-8 ^oC

34 ^oC

63.1 ^oC

55.6 ^oC

The percentage of water in bacterial cell is about.

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15%

18%

50%

75%

Which one of the following is and organic molecule

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C₆H₁₂O₆

NO₂

H₂O

H₂SO₄

Which of the following is a protein

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Cellulose

Cholesterol

ATP

Insulin

Monosaccharide which are rare in nature and occur in some bacteria is.

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Trioses

Tetroses

Hexoses

Pentoses

The mRNA of the total cell RNA is about.

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3 - 4 %

1 - 2%

2 - 4%

3 - 5 %

Animal obtain carbohydrates mainly from.

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Glycogen

Sucrose

Glucose

Starch

Silk fiber, myosin, fibrin and keratin are examples.

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Fibrous proteins

Tough proteins

Oval proteins

Globular proteins

Animals obtain carbohydrates mainly from

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Glucose

Starch

Sucrose

Glycogen

The most abundant carbohydrates in nature

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Starch

Maltose

Cellulose

Glucose

Phosphatidyl choline is one of the common

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Phospholipid

Glycolipid

Sphingolipid

Terpenoid

________ is not a terpenoid.

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Rubber

Steroids

Terpenes

Waxes

The specific heat of vaporization of water Kcal/kg is

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457 kcal/kg

574 kcal/kg

547 kcal/kg

475 kcal/kg

Number of amino acids in each turn of a helix. is.

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3.6

4.6

5.6

6.6

To produce Lactose

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Two amino acids must form a peptide bond

Pairing of nitrogenous bases must occur between nucleotides

Glucose and galactose must undergo a dehydration reaction

Glucose and fructose must undergo a hydrolysis reaction

Keratin is an example of Fibrous protein present in.

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Muscles

Blood

Bones

Nails ad Hair

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