Mycoplasma is the smallest cell (0.3 �).
Bacteria are 3 to 5 �m in size.
The largest cell is the egg of an ostrich.
Nerve cells are some of the smallest cells.
D. Nerve cells are some of the smallest cells.
A - (viii), B - (v), C - (vii), D - (iii), E - (iv)
A - (i), B - (iv), C - (vii), D - (vi), E - (iii)
A - (vi), B - (v), C - (iv), D - (vii), E - (i)
A - (v), B - (i), C - (iii), D - (ii), E - (iv)
Sample A | Sample B |
---|---|
Make energy available for cellular metabolism | Generates ATP and synthes izes s ugar |
Absent in cell that carry oxygen throughout the body | Present in plant cell |
Called the energy currency of cell | Source o f all the food energy |
Sample A - Mitochondria, Sample B - Chloroplast; because both the organelles are double membrane bound structure.
Sample A- Mitochondria, Sample B - Chloroplast; because they both are capable of synthesis of their own proteins only.
Sample A - Mitochondria, Sample B - Chloroplast; because they are capable of synthesis of their own proteins and contain their own DNA.
Sample A- Mitochondria, Sample B - Chloroplast; because they contain their own DNA to transfer the genetic information from one generation to another.
production of ATP
requirement of energy
production of toxin
release of energy
excretion
secretion
ATP synthesis
RNA synthesis
cell wall
nuclear membrane
ribosome
none of these
specialized granules responsible for colouration of cells
structures responsible for organizing the shape of the organism.
inclusion bodies lying free inside the cells for carrying out various metabolic activities.
internal membrane system which becomes extensive and complex in photosynthetic bacteria.
(i), (ii), (iii) and (iv)
Only (i) and (ii)
Only (iv)
None of the above
Column-I | Column-II |
---|---|
A. SER | I. Increase the surface area |
B. Golgi apparatus | II. Store oils or fats |
C. Cristae | III. Excretion |
D. Peroxisome | IV. Photorespiration |
E. Elaioplasts | V. Synthesis of lipid |
A V; B III; C I; D IV; E II
A V; B III: C II; D IV; E I
A II; B III; C I; D IV; E V
A III; B IV; C I; D V; E II
A, B and C
A and B
A
A and C
Active transport
Facilitated diffusion
Simple diffusion
Na+ K+ pump
RBC of human
RBC of frog
cheek cell of human
liver cell of rat
Mycoplasma is the smallest cell (0.3 �).
Bacteria are 3 to 5 �m in size.
The largest cell is the egg of an ostrich.
Nerve cells are some of the smallest cells.
A - Plasmodesmata, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
A - Desmosome, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
A - Plasmodesmata, B - Smooth endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
A - Tight junction, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E -Ribosomes
carbohydrates
hormones
nucleic acids
hydrolases.
(ii), (iii) & (iv)
(i) only
(ii) only
(iii) only
helps control the movement of substance in and out of the cell
passes information from the parent cell to newly formed cell
maintains the proper shape of the cell and serves as a protective barrier
helps the cell to make food with the help of chlorophyll and sunlight
cilia
flagella
both (a) and (b)
centriole
Elaioplasts
Sphaerosomes
Aleuroplasts
Pyrenoids
mitochondria
centriole
flagella
spindle fibres
Primary cell wall
Secondary cell wall
Middle lamella
Tertiary cell wall
(i) and (iii)
(ii) and (iv)
(iii) and (iv)
(ii) and (iii)
phytochrome
chromatophore
mesosome
pneumatophore
autolysis
protein synthesis
lipid synthesis
carbohydrate synthesis
Mitochondrion
Lysosome
Golgi apparatus
Endoplasmic reticulum
rounded structure found in cytoplasm near nucleus.
rounded structure inside nucleus and having rRNA.
rod-shaped structure in cytoplasm near the nucleus.
none of the above.
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Golgi body
mitochondria
increasing the number of phospholipids with unsaturated hydrocarbon tails.
increasing the proportion of integral proteins.
increasing concentration of cholesterol in membrane.
increasing the number of phospholipids with saturated hydrocarbon tail.
Column-I | Column-II |
---|---|
A. Leeuwenhoek | I. First saw and described a living cell |
B. Robert Brown | II. Presence of cell wall is unique to plant cells |
C. Schleiden | III. Discovered the nucleus |
D. Schwann | IV. All plants are composed of different kind of cells |
A I, B III, C IV, D II
A I, B III, C II, D IV
A III, B I, C IV, D II
A I, B IV, C II, D III
(i) and (ii)
(i), (ii), (iii) and (iv)
(i) and (iv)
(ii) and (iii)
(i), (ii), (iii)
All of the above
(ii) & (iv)
None of the above