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Biology Class 9th

181. The first person to see unicellular organisms was:

A) Robert Brown

B) Anton Van Leewenhoek

C) Robert Hooke

D) Lamrack

Answer
B

182. Who described Nucleus as a spherical body in plant cell?

A) Robert Hooke

B) Robert Brown

C) Jean Baptist

D) None of the above.

Answer
B

183. __________ purposed that living things are made up of cells

A) Schwann

B) Scleiden

C) Both A and B

D) None

Answer
C

184. Czech Scientist, Jan Evangelista Purkinie gave the name_______ to fluid substance in plant.

A) Mitochondria

B) Protoplasm

C) Cell Wall

D) Blood Plasma

Answer
B

185. “Every Cell comes from a Cell” stated by:

A) Robert Hooke

B) Jan Evangelista

C)  Virchow

D) Robert Hooke.

Answer
B

186. New Cells arise from:

A) Currently existing Cells

B) Pre existing Cells

C) Water

D) Dead Organisms.

Answer
B

187. Which of the following are Characteristics of Viruses:

A) Crystalline in nature.

B) Can increase in number

C) Can transmit characteristics to next generation

D)  All of the above

Answer
D

188. Cell wall is present in all of the below except:

A) Plants

B) Fungi

C) Animal

D) Protists.

Answer
C

189. Cell wall is located outside of:

A) Mitochondria

B) Cell Membrane

C) Ribosome

D) None

Answer
B

190. Living matter of cell is called:

A) Nucleus

B) Protoplasm

C) Cell Wall

D) Cell Membrane

Answer
B

191. Plant’s primary cell wall is made up of:

A) Cellulose

B) Lignin

C) Pectin

D) None

Answer
A

192. Cell wall of Prokaryotes is made up of ________.

A) Cellulose

B) Amino acid

C) Lignin

D) Murein

Answer
D

193. Murein is made up of :

A) Amino Acid

B) Sugar

C) Both A and B

D) Pectin

Answer
C

194. The Cell wall of ________ is made up of Chitin.

A) Plant

B) Animals

C) Fungi

D) None

Answer
C

195. Cell Membrane is the outer most component of _______ cell.

A) Fungi

B) Animal

C) Plant

D) None of the above.

Answer
B

196. Cellulose fibers are present in which pattern?

A) Straight

B) Paired

C) Zigzag

D) Crisscross.

Answer
D

197. Cell Membrane is _________ Permeable.

A) Semi

B) Fully

C) Selectively

D) Non

Answer
C

198. Cell Membrane is responsible for:

A) Growth of Cell

B) Exchange of Material throughout cell.

C) Energy Production

D) Respiration

Answer
B

199. Cell Membrane acts as a receptor site for recognizing _____________.

A) Hormones

B) Neurotransmitters

C) Other Chemicals in organism

D)  All of the Above

Answer
D

200. Fluid Mosaic Model was presented by:

A) Singer

B) Nicolson

C) Robert Brown

D) A and B

Answer
D
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