Choose the correct statements regarding cell organelles and their inclusions.
A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria.
B. Rough endoplasmic reticulum bears ribosomes on its surface.
C. Both mitochondria and plastids have circular DNA.
D. A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton.
E. Mitochondrion is a single membrane-bound structure.
Choose the correct answer from the options given below :
A and B only
A, B and C only
C, D and E only
B, C and D only
Select the correct statements regarding cell membrane in eukaryotic cell.
A. Membrane of human RBCs has approximately $52 \%$ protein.
B. Major phospholipids are arranged in a bilayer.
C. Extensions of the plasma membrane into the cell form mesosomes.
D. Tails towards the inner part of lipids are hydrophobic and thus protected from aqueous medium.
E. Glycocalyx is present on the outer surface of the plasma membrane.
Choose the correct answer from the options given below:
C, D and E only
B, C and E only
A, B and D only
A, C and E only
$$ \text { Match List I with List II related to muscular/skeletal system: } $$
| $$ \text { List I } $$ |
$$ \text { List II } $$ |
||
|---|---|---|---|
| A. | Tetany | I. | Inflammation of joints |
| B. | Arthritis | II. | Autoimmune disorder affecting neuromuscular junction |
| C. | Myasthenia gravis | III. | Wild contraction in muscle due to low $\mathrm{Ca}^{++}$in body fluid |
| D. | Muscular dystrophy | IV. | Progressive degeneration of skeletal muscle |
A-III, B-I, C-II, D-IV
A-I, B-II, C-III, D-IV
A-IV, B-III, C-II, D-I
A-III, B-II, C-I, D-IV
Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is:
Ramapithecus → Homo habilis → Homo erectus → Neanderthal → Homo sapiens
Homo sapiens → Ramapithecus → Homo habilis → Neanderthal → Homo erectus
Homo habilis → Homo erectus → Ramapithecus → Neanderthal → Homo sapiens
Neanderthal → Ramapithecus → Homo habilis → Homo erectus → Homo sapiens
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