Gametes
Amoeba
Mycoplasma
All of these
D. All of these
polysaccharides
phosphoglyceride
monosaccharaides
both (a) and (c)
mitochondria
centriole
flagella
spindle fibres
microtubule
bone
chitin
cartilage.
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
vacuole
ribosome
peroxisome
lysosome
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
green plants
animals
bacteria and cyanobacteria
both (b) and (c)
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 |
eukaryotic cell have membrane bound organelles.
eukaryotic cell have non - membrane bound organelles.
eukaryotic cell are smaller and multiply more rapidly than prokaryotic cells.
eukaryotic cell are larger and multiply more rapidly than prokaryotic cells.
SER
Lysosome
Golgi apparatus
Mitochondria
excretion and osmoregulation.
digestion and respiration.
osmoregulation and transportation.
none of the above.
(i) and (iii)
(ii) and (iv)
(iii) and (iv)
(ii) and (iii)
50S and 30S subunits unite to form 70S ribosomes.
Polysome/polyribosome consists of many ribosomes only.
Ribosome is the site of protein synthesis.
Polysome indicate the synthesis of identical poolypeptide in multiple copies.
(I) and (III) only
(II), (III) and (IV) only
(III) and (IV) only
(II) and (IV) only
Column - I | Column - II |
---|---|
A. Golgi apparatus | I. Storage |
B. Mitochondria | II. Photosynthesis |
C. Vacuoles | III. Transport |
D. Grana | IV. Secretion |
.. | V. Respiration |
A - IV, B - V, C - I, D - II
A - I, B - II, C - IV, D - III
A - IV, B - I, C - II, D - III
A - I, B - II, C - III, D - IV
Only (i)
Only (iii)
(i) and (iii)
All of these
mechanism of photosynthesis that occurs in chloroplasts.
rough ER in prokaryotic cells.
cytoskeleton of eukaryotic cells.
process that moves small molecules across cell membranes.
protein storing plastids.
coloured plastids.
stacks of thylakoids.
individual thylakoids present in stroma.
inner surfaces
outer surfaces
phospholipid matrix
inner and outer surfaces
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.
type of movement and placement.
location and mode of functioning.
microtubular structure and function.
microtubular organization and type of movement.
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
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).
chloroplast
mitochondria
lysosome
endoplasmic reticulum
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
excretion
secretion
ATP synthesis
RNA synthesis
Cell dies
Cell shrinks
Cell swell up
Nothing would happen
(iii) and (iv)
(i) and (ii)
(ii) and (iii)
(i) and (iv)
neutral and isotonic.
alkaline and isotonic.
acidic and hypertonic.
equal to cytoplasm and isotonic.
Nucleus RNA
Lysosome Protein synthesis
Mitochondria Respiration
Cytoskeleton Microtubules
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