Which one of the following specially result in chronic liver disease leading to hepatic failure:?
A. HAV
B. HBV
C. HCV
D. HEV
Category: Biology Mcqs
Which of the following represents osmoregulatory steps taken by hydrophytes??
A. Increases transpiration by increasing the surface area of the leave.
B. Small and thick leaves to decrease the surface area proportional to the volume of the leave.
C. Stomata closing in sufficient supply, and opening in restricted supply of water.
D. None of these
Factory of Ribosomal systhesis is__________??
A. Cytoplasm
B. Nucleus
C. Nucleolus
D. Endoplasmic reticulum
Peptide bond is_____________??
A. C-N link
B. C- O lind
C. N-H link
D. C-H link
Which of the following is the empirical formula of chlorophyll b??
A. C55H70O5N4Mg
B. C55H72O6N4Mg
C. C55H70O6N4Mg
D. C55H72O5N4Mg
Ecosystem not found in Pakistan is_____________??
A. Tropical rain forest
B. Temperate deciduous forest
C. Grassland
D. Tundra
Starch is converted into maltose by??
A. diastase
B. invertase
C. maltase
D. amylase
Which of the following is antagonist to Auxin in terms of promotion of stem growth______________??
A. Gibberellins
B. Cytokinins
C. Abscisic Acid
D. none of these.
In an aqueous environment the most stable tertiary conformation is that in which _________ amino acids are buried inside the conformation??
A. Hydrophobic
B. Hydrophilic
C. Basic
D. None of these
Which is a parasitic plant??
A. cuscuta
B. rose
C. ferns
D. mosses
