Endoplasmic reticulum Synthesis of lipids.
Mitochondria Produce cellular energy in the form of ATP.
Golgi body Provides packaging material.
Lysosomes Secrete hydrolytic enzymes.
B. Mitochondria Produce cellular energy in the form of ATP.
it came from a single-celled or multicellular organism.
it has a nucleus.
it has a plasma membrane.
it has cytosol.
metacentric
acrocentric
polycentric
acentric.
(iii) and (iv)
(i) and (ii)
(ii) and (iii)
(i) and (iv)
Proteins in cell membranes can travel within the lipid bilayer.
Proteins can also undergo flip-flop movements in the lipid bilayer.
Proteins can remain confined within certain domains of the membrane.
Many proteins remain completely embedded within the lipid bilayer.
Golgi complex
Peroxisome
Vacuole
Lysosome
It helped to study the working of cells.
It helped in curing diseases caused by cell.
It helped in restating the earlier theories on cell.
It helped in introducing the use of microscopes to study cell.
mitochondria
centriole
flagella
spindle fibres
Golgi apparatus Protein synthesis
Golgi apparatus Formation of glycolipids
Rough endoplasmic reticulum Protein synthesis
Rough endoplasmic reticulum Formation of glycoproteins
autolysis
protein synthesis
lipid synthesis
carbohydrate synthesis
living content of cytoplasm.
nonliving content of cytoplasm.
nonliving content of vacuole.
living content of vacuole.
Active transport
Facilitated diffusion
Simple diffusion
Na+ K+ pump
Glycocalyx May be capsule or slime layer
Pili Reproduction
Cell wall Protective, determines shape, prevents from bursting
Flagella, pili and fimbriae Surface structures of bacterial cell
(ii), (iii) & (iv)
(i) only
(ii) only
(iii) only
protein storing plastids.
coloured plastids.
stacks of thylakoids.
individual thylakoids present in stroma.
Part (D): Outer membrane Gives rise to inner membrane by splitting.
Part (B): Inner membrane Forms infoldings called cristae.
Part (C): Cristae Possess single circular DNA molecule and ribosomes.
Part (A): Matrix Major site for respiratory chain enzymes.
Column-I | Column-II |
---|---|
A. Tonoplast | I. Contain digestive enzyme |
B. Contractile vacuole | II. Store metabolic gases |
C. Food vacuole | III. Excretion |
D. Air vacuole | IV. Transport of ions in plants |
A IV; B III; C I; D II
A II; B III; C IV; D I
A IV; B II; C III; D I
A I; B III; C II; D IV
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.
Osmosis Movement of water by diffusion.
Nucleoplasm Site of active synthesis of ribosomal RNA.
Mesosome Infolding of cell membrane and characteristics of eukaryotes.
Pili Elongated tubular surface structures (made of special protein) of bacteria.
(i), (ii), (iii)
All of the above
(ii) & (iv)
None of the above
A - Satellite, B - Primary constriction, C - Acrocentric
A - Satellite, B - Secondary constriction, C - Metacentric
A - Satellite, B - Centromere, C - Telocentric
A - Satellite, B - Centromere, C - Submetacentric
mechanism of photosynthesis that occurs in chloroplasts.
rough ER in prokaryotic cells.
cytoskeleton of eukaryotic cells.
process that moves small molecules across cell membranes.
oxysomes
sphaerosomes
ribosomes
dictyosomes
all animal cells.
some animal cells.
all plant cells.
all plant cells and euglenoides.
higher plants
yeast
bacteria and blue-green algae
None of the above
Cell dies
Cell shrinks
Cell swell up
Nothing would happen
Column-I | Column-II |
---|---|
A. Mitochondria | I. Without membrane |
B. Lysosomes | II. Single membrane |
C. Ribosomes | III. Double membrane |
A - I, B - II, C - III
A - III, B - I, C - II
A - III, B - II, C - I
A - II, B - III, C - I
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.
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Golgi body
mitochondria
Centrioles Sites for active RNA synthesis.
Lysosomes Optimally active at a pH of about 8.5.
Thylakoids Flattened membranous sacs forming the grana of chloroplasts.
Ribosomes Those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S).
42, 50
52, 40
50, 50
60, 40