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Biology - MOST IMPORTANT DDA JSA Previous Year Questions

Practice real questions from previous year exams of DDA JSA.

📘 Cell Structure and Organelles📚 Cell Wall

Q1

The plant cell wall is mainly composed of ______.

🎯 DDA JSA 22-Sep-2023 Shift-1

A.

proteins

B.

cellulose

C.

lipids

D.

starch

📘 Genetic Material📚 Gene

Q2

Functional segments of DNA are called ______.

🎯 DDA JSA 22-Sep-2023 Shift-2

A.

genes

B.

chromatin

C.

chromosome

D.

protein

📘 Classification of Kingdom📚 Plantae - General Facts

Q3

Which of the following pair is correctly matched?
I. Plants – Unicellular
II. Paramecium – Multicellular

🎯 DDA JSA 22-Sep-2023 Shift-3

A.

Only I

B.

Both I and II

C.

Neither I nor II

D.

Only II

📘 Endocrine Glands- behind stomach📚 Pancreas and secreted hormones

Q4

Which of the following gland produces insulin hormone in human body?

🎯 DDA JSA 22-Sep-2023 Shift-4

A.

Thyroid

B.

Pancreas

C.

Thymus

D.

Adrenaline

📘 Cell Fundamentals📚 Discovery of Cell and its Parts

Q5

Which of the following statements is correct about cells?

🎯 DDA JSA 20-Sep-2023 Shift-1

A.

Anton Von Leeuwenhoek observed that all plants are composed of different kinds of cells which form the tissues of the plant.

B.

Robert Hooke discovered the nucleus in the year $\displaystyle 1665$ .

C.

Schwann proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells.

D.

Matthias Schleiden first saw and described a live cell.

📘 Classification of Kingdom📚 Phylum Ctenophora

Q6

In which of the following phyla, bioluminescence (the property of a living organism to emit light) is well marked?

🎯 DDA JSA 20-Sep-2023 Shift-2

A.

Ctenophora

B.

Porifera

C.

Mollusca

D.

Arthropoda

📘 Botany- Plant Classification- Cryptogams📚 Thallophyta- Algae

Q7

Red algae gets its colour from the pigment __________.

🎯 DDA JSA 20-Sep-2023 Shift-3

A.

chlorophyll d

B.

chlorophyll a

C.

phycoerythrin

D.

fucoxanthin

📘 Evolution📚 General Facts

Q8

Virgin vegetation that is purely Indian can be termed as '______' species.

🎯 DDA JSA 20-Sep-2023 Shift-3

A.

erratic

B.

ergotic

C.

endemic

D.

ectopic

📘 Endocrine System- Overview📚 Glands and hormones- General Facts

Q9

Which of the following is an example of animal hormones?
I. Adrenalin
II. Testosterone

🎯 DDA JSA 24-Sep-2023 Shift-1

A.

Only II

B.

Only I

C.

Neither I nor II

D.

Both I and II

📘 Cellular Transport📚 Movement of Water molecules through Osmosis

Q10

Absorption of water by plant roots is an example of ______.

🎯 DDA JSA 24-Sep-2023 Shift-2

A.

transpiration

B.

guttation

C.

osmosis

D.

diffusion

📘 Endocrine Glands- behind stomach📚 Pancreas and secreted hormones

Q11

Which of the following hormone helps in regulating blood sugar levels of human body?

🎯 DDA JSA 24-Sep-2023 Shift-3

A.

Thymus

B.

Adrenalin

C.

Testosteron

D.

Insulin

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