Options:
- A. Cellulose
- B. Chitin
- C. Inorganic salts silica waxes and ligin
- D. Peptidoglycan or Murein.
View Answer
D. Peptidoglycan or Murein.
Biology
Carbon atom is_____________?
Options:
- A. Monovalent
- B. Divalent
- C. Trivalent
- D. Tetravalent
View Answer
D. Tetravalent
Ribose is an example of___________?
Options:
- A. Trioses
- B. Tetroses
- C. Pentose
- D. Hexose
View Answer
C. Pentose
The cell wall of oomycetes is chiefly composed of___________?
Options:
- A. Chitin
- B. Cellulose
- C. Lignin
- D. Proteins
View Answer
B. Cellulose
Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?
Options:
- A. i & ii
- B. iii & iv
- C. i ii iii & iv
- D. iv only
View Answer
D. iv only
Hemoglobin molecule exhibits which structural organization of proteins___________?
Options:
- A. Primary structure
- B. Secondary structure
- C. Tertiary structure
- D. Quaternary structure
View Answer
D. Quaternary structure
If a plasmolysed plant cell is placed in water the cell will___________?
Options:
- A. Burst
- B. Be Killed
- C. Be deplasmolysed
- D. Show no change in it
View Answer
C. Be deplasmolysed
In Cx(H2O)y x ranges from______________?
Options:
- A. 1 to 3 thousand
- B. 3 to many thousand
- C. 3 to 5 thousand
- D. 5 to 9 thousand
View Answer
B. 3 to many thousand
Ecosystem not found in Pakistan is_____________?
Options:
- A. Tropical rain forest
- B. Temperate deciduous forest
- C. Grassland
- D. Tundra
View Answer
A. Tropical rain forest
Of the following which one is not the characteristic of mitochondria?
Options:
- A. It contains F1 particles
- B. It is involved in the synthesis of protein
- C. It is a self replicating organelle
- D. Number of mitochondria is constant
View Answer
D. Number of mitochondria is constant