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Q 1/20
Score 0
The English scientist who first observed a cell and coined the term ācellā wasā¦
30
Robert hooke
schwann
robert brown
Anton
Q 2/20
Score 0
A cell will swell up if
(a) the concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium.
(b) the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.
(c) the concentration of water molecules is same in the cell and in the surrounding medium.
(d) concentration of water molecules does not matter.
30
d
c
b
a
20 questions
Q.
The English scientist who first observed a cell and coined the term ācellā wasā¦
1
30 sec
Q.
A cell will swell up if
(a) the concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium.
(b) the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.
(c) the concentration of water molecules is same in the cell and in the surrounding medium.
(d) concentration of water molecules does not matter.
2
30 sec
Q.
Chromosomes are made up of
3
30 sec
Q.
Which of these is not related to endoplasmic reticulum?
(a) It behaves as a transport channel for proteins between nucleus and cytoplasm.
(b) It transports materials between various regions in the cytoplasm.
(c) It can be the site of energy generation.
(d) It can be the site for some biochemical activities of the cell.
4
30 sec
Q.
Following are a few definitions of osmosis:
Read carefully and select the correct definition.
(a) Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.
(b) Movement of solvent molecules from its higher concentration to lower concentration.
(c) Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane.
(d) Movement of solute molecules from lower concentration to higher concentration of solution through a semi permeable membrane.
5
30 sec
Q.
Find out the false sentence.
(a) Nucleus is involved with the formation of lysosomes.
(b) Nucleus, mitochondria and plastid have DNA, hence they are able to make their own structural proteins.
(c) Mitochondria is said to be the power house of the cell as ATP is generated in them.
(d) Cytoplasm is called as protoplasm.
6
30 sec
Q.
Which cell organelle plays a crucial role in detoxifring many poisons and drugs in a cell?
(a) Golgi apparatus
(b) Lysosomes
(c) Smooth endoplasmic reticulum
(d) Vacuoles
7
30 sec
Q.
The proteins and lipids, essential for building the cell membrane, are manufactured by
8
30 sec
Q.
The undefined nuclear region of prokaryotes is also known as
(a) nucleus
(b) nucleolus
(c) nucleic acid
(d) nucleoid
9
30 sec
Q.
Amoeba acquires its food through a process, termed
(a) exocytosis
(b) endocytosis
(c) plasmolysis
(d) exocytosis and endocytosis both
10
30 sec
Q.
Organelle other than nucleus, containing DNA is
(a) endoplasmic reticulum
(b) golgi apparatus
(c) mitochondria
(d) lysosomes
11
30 sec
Q.
Lipid molecules in the cell are synthesised by
(a) smooth endoplasmic reticulum
(b) rough endoplasmic reticulum
(c) golgi apparatus
(d) plastids
12
30 sec
Q.
Cell arises from pre-existing cell was stated by
(a) Haeckel
(b) Virchow
(c) Hooke
(d) Schleiden
13
30 sec
Q.
Cell theory was given by
(a) Schleiden and Schwann
(b) Virchow
(c) Hooke
(d) Haeckel
14
30 sec
Q.
The only cell organelle seen in prokaryotic cell is
(a) mitochondria
(b) ribosomes
(c) plastids
(d) lysosomes
15
30 sec
Q.
1 Ī¼m is
(a) 10-6 m
(b) 10-9 m
(c) 10-10 m
(d) 10-3 m
