excretion
secretion
ATP synthesis
RNA synthesis
A. excretion
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
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.
(iii) and (iv)
(i) and (ii)
(ii) and (iii)
(i) and (iv)
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Golgi body
mitochondria
it came from a single-celled or multicellular organism.
it has a nucleus.
it has a plasma membrane.
it has cytosol.
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.
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).
Nucleus and E.R.
Mitochondria and chloroplast
Ribosome and nucleolus
Golgi body and lysosome
Column-I | Column-II |
---|---|
(Cell type) | (Size) |
A. Viruses | I. 1-2 ??m |
B. PPLO | II. 10-20 ??m |
C. Eukaryotic cell | III. About 0.1 ??m |
D. Bacterium | IV. 0.02 - 0.2 ??m |
A I, B II, C III, D IV
A IV, B III, C II, D I
A I, B III, C II, D IV
A IV, B II, C III, D I
(ii), (iii) & (iv)
(i) only
(ii) only
(iii) only
Golgi apparatus Protein synthesis
Golgi apparatus Formation of glycolipids
Rough endoplasmic reticulum Protein synthesis
Rough endoplasmic reticulum Formation of glycoproteins
Cell dies
Cell shrinks
Cell swell up
Nothing would happen
A - Outer membrane, B - Inner membrane, C - Matrix, D - Inter- membrane space, E - Crista
A - Outer membrane, B - Inner membrane, C - Intermembrane space, D - Matrix, E - Crista
A - Outer membrane, B - Inner membrane, C - Matrix, D - Crista, E - Inter - membrane space
A - Outer membrane, B - Inner membrane, C- Crista, D - Matrix, E - Inter-membrane space
green plants
animals
bacteria and cyanobacteria
both (b) and (c)
(i) and (ii)
(i), (ii), (iii) and (iv)
(i) and (iv)
(ii) and (iii)
Chloroplasts Chlorophyll
Elaioplasts Starch
Chromoplasts Carotenoids
Amyloplasts Carbohydrates
(i) and (iii)
(iii) and (iv)
(ii) and (iv)
(i) and (iv)
42, 50
52, 40
50, 50
60, 40
metacentric
acrocentric
polycentric
acentric.
SER
Lysosome
Golgi apparatus
Mitochondria
type of movement and placement.
location and mode of functioning.
microtubular structure and function.
microtubular organization and type of movement.
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.
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
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.
requires energy.
always requires input of ATP.
moves molecules against a concentration gradient.
both (a) 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.
Column I | Column II |
---|---|
A. Centrioles | (i) Non-membrane bound organelle which helps in cell division |
B. Fimbriae | (ii) Special structure of bacteria which help them to attach with rocks in stream and also to host tissue |
C. Endomembrane | (iii) Includes those organelles system whose functions are coordinated |
D. Mitochondria | (iv) Divide by fission and site of aerobic respiration |
A - (i), B - (ii), C - (iii), D - (iv)
A - (iii), B - (i), C - (ii), D - (iv)
A - (iii), B - (i), C - (iv), D - (ii)
A - (i), B - (iv), C - (iii), D - (ii)
chloroplast
mitochondria
lysosome
endoplasmic reticulum
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