terminal part of the chromosome beyond secondary constriction.
terminal part of the chromosome beyond primary constriction.
terminal part of chromosome beyond tertiary constriction.
none of the above
A. terminal part of the chromosome beyond secondary constriction.
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
Only (i)
Only (iii)
(i) and (iii)
All of these
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.
on ribosomes present in cytoplasm as well as in mitochondria.
on ribosomes present in the nucleolus as well as in cytoplasm.
only on ribosomes attached to the nuclears envelope and endoplasmic reticulum.
only on the ribosomes present in cytosol.
42, 50
52, 40
50, 50
60, 40
W
X
Y
Z
It is membrane-bound and contains storage proteins and lipids.
It is membrane-bound and contains water and excretory substances.
It lacks membrane and contains air.
It lacks membrane and contains water and excretory substances.
Chloroplasts Chlorophyll
Elaioplasts Starch
Chromoplasts Carotenoids
Amyloplasts Carbohydrates
Nucleus RNA
Lysosome Protein synthesis
Mitochondria Respiration
Cytoskeleton Microtubules
(iii) and (iv)
(i) and (ii)
(ii) and (iii)
(i) and (iv)
chloroplast
mitochondria
lysosome
endoplasmic reticulum
Elaioplasts
Sphaerosomes
Aleuroplasts
Pyrenoids
requires energy.
always requires input of ATP.
moves molecules against a concentration gradient.
both (a) and (c)
Cytosol
Mitochondria
Lysosomes
Golgi bodies
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)
RBC of human
RBC of frog
cheek cell of human
liver cell of rat
Only (i)
Only (iv)
Only (ii), (iii) and (iv)
None of the above
Active transport
Facilitated diffusion
Simple diffusion
Na+ K+ pump
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.
Column - I | Column - II |
---|---|
A. RER | I. Intracellular and extracellular digestion |
B. Cell wall | II. Provide structural support to the cell |
C. Flagella | III. Protein synthesis and secretion |
D. Lysosomes | IV Responsible for cell movement |
A III, B II, C IV, D I
A II, B III, C IV, D I
A I, B III, C II, D IV
A IV, B II, C III, D I
living content of cytoplasm.
nonliving content of cytoplasm.
nonliving content of vacuole.
living content of vacuole.
Column-I | Column-II |
---|---|
(Chromosome) | (Position of Centromere) |
A. Metacentric | I. At the tip |
B. Submetacentric | II. Almost near the tip |
C. Acrocentric | III. At the middle |
D. Telocentric | IV. Slightly away from the middle |
A III; B IV; C II; D I
A IV; B III; C II; D I
A I; B II; C III; D IV
A IV; B III; C I ; D II
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.
mechanism of photosynthesis that occurs in chloroplasts.
rough ER in prokaryotic cells.
cytoskeleton of eukaryotic cells.
process that moves small molecules across cell membranes.
microtubule
bone
chitin
cartilage.
(ii), (iii) & (iv)
(i) only
(ii) only
(iii) only
Mohl
Virchow
Haeckel
Brown
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.
(i) and (iii)
(iii) and (iv)
(ii) and (iv)
(i) and (iv)
Both statements -1 and statement - 2 are true and statement - 2 is the correct explanation of statement - 1.
Both statements -1 and statement - 2 are true but statement - 2 is not the correct explanation of statement - 1.
Statement -1 is true and statement - 2 is false.
Statement -1 is false and statement - 2 is true.