Question 1

All of the following are major groups of biomolecules except one. Which is it?

Accepted Answer

NUCLEUS

Answer

PROTEINS

Answer

CARBOHYDRATES

Answer

LIPIDS

Question 2

Which of the following is composed of amino acid units?

Accepted Answer

PROTEINS

Answer

NUCLEIC ACIDS

Answer

CARBOHYDRATES

Answer

LIPIDS

Question 3

Which of the following biomolecules contain only the elements carbon, hydrogen and oxygen?

Accepted Answer

Lipids and Carbohydrates

Answer

Carbohydrates and Proteins

Answer

Proteins and Nucleic acids

Answer

Nucleic acids and Lipids

Question 4

The sugar in DNA is _____________ while the sugar in RNA is _____________.

Accepted Answer

deoxyribose; ribose

Answer

ribose; phosphate

Answer

ribose; deoxyribose

Answer

deoxyribose; adenine

Question 5

Which of the following are functions of carbohydrates?

Accepted Answer

Store and provide energy

Answer

Express genetic formation

Answer

Provide framework of cellular structures

Answer

Speed up chemical reactions

Question 6

Nucleotides are building blocks of which class of biomolecule?

Accepted Answer

NUCLEIC ACIDS

Answer

CARBOHYDRATES

Answer

PROTEINS

Answer

LIPIDS

Question 7

Which of the following statements is true about waxes?

Accepted Answer

Composed of a fatty acid with a long chain of alcohol

Answer

Made up of repeating units of nucleotides

Answer

Known as complex carbohydrates composed of carbon, hydrogen, and oxygen

Answer

Described as amphoteric because their amino acids have an acidic carboxyl end and a basic amino end

Question 8

He discovered nucleic acids in 1869.

Accepted Answer

Friedrich Miescher

Answer

Justus von Liebig

Answer

Hermann Staudinger

Answer

Francis Crick

Question 9

It is a type of RNA that carries the genetic sequence information between the DNA and ribosomes.

Accepted Answer

Messenger RNA (mRNA)

Answer

Transfer RNA (tRNA)

Answer

Small Nuclear RNA (snRNA)

Answer

Ribosomal RNA (rRNA)

Question 10

Which of the following is the arrangement of triglycerides and waxes when they are mixed with water?

Accepted Answer

Micelle

Answer

Pleated sheet

Answer

Cyclic

Answer

Helix

Question 11

Which of the following refer to the functions of proteins?

Accepted Answer

Act as antibodies and speed up food digestion

Answer

Speed up food digestion and decode genetic information

Answer

Main source of energy and act as antibodies

Answer

Decode genetic information and main source of energy

Question 12

Monomers with three components, a 5-carbon sugar, a phosphate group, and a nitrogenous base

Accepted Answer

Nucleotides

Answer

Glucose

Answer

Fatty acid

Answer

Amino acid

Question 13

What type of monosaccharides combine to form a lactose?

Accepted Answer

glucose and galactose

Answer

galactose and fructose

Answer

glucose and fructose

Answer

glucose units

Question 14

Which of the following food sources contain proteins?

Accepted Answer

sausage and beans

Answer

honey and meat

Answer

sweet potato and grapes

Answer

rice and corn

Question 15

Which of the following are the reasons why cellulose passes through the digestive system unchanged?

Accepted Answer

It cannot be broken down into simpler monosaccharides in our human body.

Answer

It forms a micelle when it mixes with water in the body.

Answer

Its helical shape is not recognized by the enzymes for digestion.

Answer

It is a type of protein molecule which has a large molecular size.

Question 16

Which of the following statements BEST describe lipids?

Accepted Answer

Lipids are highly water- insoluble which contains fatty acids and glycerol.

Answer

Lipids contains nucleotides which aid in encoding, transmitting and expressing the genetic information.

Answer

Lipids are composed of amino acids and act as structural support and digestive enzymes.

Answer

Lipids are main source of energy and are stored in some parts of the body for later use.

Question 17

Which of the following nucleic acids catalyzes the peptide bond formation?

Accepted Answer

rRNA

Answer

tRNA

Answer

DNA

Answer

mRNA

Question 18

In which organs are glycogen stored in the body?

Accepted Answer

liver and muscles

Answer

liver and heart

Answer

liver and brain

Answer

liver and kidney

Question 19

What type of biomolecule is shown in the image?

Accepted Answer

LIPIDS

Answer

CARBOHYDRATES

Answer

NUCLEIC ACIDS

Answer

PROTEINS

Question 20

Which of the following statements BEST describe the difference between the glucose and starch?

Accepted Answer

Glucose is the basic unit of carbohydrates while starch is composed of few branches of glucose units.

Answer

Glucose is stored in the muscles and liver while starch is stored in the cell membrane layer.

Answer

Glucose is converted to fructose when needed while starch is broken down to glucose.

Answer

Glucose is commonly found in fruits and honey while starch is found in milk and milk products.

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