-
- 91%
- 90%
- 93%
- 95%
Biology MCQs
All are functions of hypothalamus, but _____.
-
- Regulation of sleep and emotions
- Regulation of body temperature
- Regulation of anti-diuretic hormones
- Regulation of blood osmotic pressure
Which of the protozoa has a striking resemblance to collar cells in sponges_____.
-
- Choanoflagellates
- Zooflagellates
- Trypanosomoa
- Trichonymphas
Extreme change in pH results in_____.
-
- Change in ionization of amino acids at the active site of the enzyme
- Change in the ionization of the substrate
- Increase in the reaction rate
- Denaturation of the enzyme
Which of the following feature is not related to neuron?
-
- Conduction
- Reflex
- Regeneration
- Movement
Brown fat present in certain mammals is specialized in_____.
-
- Rapid heat production
- Providing insulation in cold environment
- Providing insulation in hot environment
- Controlling heat production
mitochondria in heart muscles are nearly_____.
-
- 340
- 350
- 375
- 325
Bryophtes are called amphiabians of plant world because:
-
- Bryophytes like amphibian ancestors are one of the most primitive organisms in this world
- Amphibians have close relation with bryophytes in their habitat
- Bryophytes like amphibian live in damp shady places and close to water body
- None of these
Okazaki fragments are connected together through action of_____.
-
- Ligase
- Primase
- Polymerase
- Helicase
More water is reabsorbed in blood due to _____.
-
- Lesser anti-diuretic hormone
- More anti-diuretic hormone
- Active functioning of pancreas
- Inactivity of pituitary gland