Biology Part 1 Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Biology. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Which among the following human organs does not grow since birth?

A - Eye

B - Nose

C - Ear

D - Lips

Answer : A

Explanation

Since birth to death, eye does not grow.

Q 2 - Which among the following is an ideal weight of the brain in an adult?

A - 2.3 kg

B - 2 kg

C - 1.4 kg

D - 1.0 kg

Answer : C

Explanation

The average weight of brain in an adult is about 2% of his/her total body weight.

Q 3 - Which among the following correctly defines the Pellagra?

A - Patches of skin

B - Skin burn

C - Loss of hair

D - Loss of hunger

Answer : A

Explanation

N/A

Q 4 - . term is used in Botany

A - Depression

B - Dumping

C - Compression

D - Biennial

Answer : D

Explanation

Biennial is term used for those plants that take two years to complete its biological lifecycle.

Q 5 - Which of the following glands secrete tears?

A - Lacrimal

B - Adrenal

C - Thyroid

D - Pineal

Answer : A

Explanation

N/A

Q 6 - How many bones are there in a newborn child approximately?

A - 206

B - 306

C - 270

D - 400

Answer : C

Explanation

A new born baby has about 270 bones.

Q 8 - Niacin is the chemical name of

A - Vitamin O

B - Vitamin P

C - Vitamin PP

D - Vitamin S

Answer : C

Explanation

N/A

Q 9 - Which among the following elements is an essential for the transmission of impulses in the nerve fiber?

A - Calcium

B - Magnesium

C - Sodium

D - Zinc

Answer : A

Explanation

N/A

Q 10 - Which among the following is an ideal condition for the seeds preservation?

A - Hot and dry condition

B - Cold and wet condition

C - Cold and dry condition

D - Hot and wet condition

Answer : C

Explanation

N/A

Q 11 - Consider the following statements:

1. Plants synthesize carbohydrates from carbon dioxide and water by photosynthesis process.

2. Plants store the absorbed energy internally, normally, in the form of starch or lipids.

Choose the correct answer from the given codes:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

N/A

Q 12 - The overdose of causes liver diarrhea.

A - Vitamin A

B - Vitamin B1

C - Vitamin B5

D - Vitamin B3

Answer : C

Explanation

The overdose of B5 also causes nausea and heartburn.

Q 13 - The edible part of pear is known as

A - Endocarp

B - Seed ferns

C - Aerial

D - Pulpy thalamus

Answer : D

Explanation

N/A

Q 14 - The edible part of the coconut is known as

A - Pericarp

B - Whole seed

C - Endosperm

D - Blastula

Answer : C

Explanation

N/A

Q 15 - Which among the following drugs increase speech and physical activity?

A - Amphetamines

B - Barbiturates

C - Benzodiazepines

D - Cocaine

Answer : A

Explanation

Amphetamines promotes alertness.

Q 16 - Which among the following activities is directly and exclusively responsible for the global warming?

A - Establishment of Nuclear plants

B - Forest fire

C - Greenhouse effect

D - Faulty farming practice

Answer : C

Explanation

N/A

Q 17 - Which among the following elements are normally present in all proteins?

1) Carbon

2) Hydrogen

3) Oxygen

4) Nitrogen

Choose the correct answer from the codes given below:

A - 2 and 3

B - 1,2 and 4

C - 1,3 and 4

D - 1,2,3 and 4

Answer : D

Explanation

N/A

Q 18 - Which among the following is the richest source of vitamin A?

A - Sweet potato

B - Pumkin

C - Brinjal

D - Radish

Answer : B

Explanation

Sweet potato, carrot, green leafy, etc. are the rich source of vitamin A.

Q 19 - Which among the following is the most dangerous fish?

A - Payara

B - Piranha

C - Stonefish

D - Eel

Answer : A

Explanation

Most likely payara is the most dangerous fish and popular as vampire fish.

Q 20 - Consider the following statements:

1. Chlorosis is a disorder which affects a plants ability to form chlorophyll.

2. Chloroplast are colored plastids containing pigments other than chlorophyll.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

Chloroplast gives color to flower and fruits.

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