A single molecule of glucose generates _________ molecules of acetyl CoA, which enters the Krebs cycle.
3. Oxidative decarboxylation
Acetylcholine is a neurotransmitter enabling communication between muscles and nerves. In case of an interruption in the interaction between acetylcholine and acetylcholine receptor sites on the muscles, this condition can occur in _______.
4. Both A and B
ATP synthesis is powered by
1. Coenzyme motive force
3.along with fertilization
4.None of the above
Chloragogen cells are found in
1.Blood of earthworm
2.The coelomic fluid of the earthworm
3.Blood of cockroach
4.The body wall of leucosolenia
1. Isocitrate to oxaloacetate
2.Succinyl CoA to Succinate
3. Fumarate to malate
4. Succinate to fumarate
If the cell stimulation is strong, then the strength of the action potential produced would be ______.
1. Weaker than the produced by weak stimulation
2.Stronger than the produced by weak stimulation
3. Double then the produced by the weak stimulation
4. No different to the produced by weak stimulation
In earthworm, the mouth is located on
1.Electron transport chain requires aerobic conditions to operate
2.Oxygen is a reactant
3.Oxygen has a catalytic function
4.All of the above
1.NADPH and ATP
3.CO2 and oxaloacetate
4.NADH and FADH2
The earthworm is placed under the group
The entry of pyruvate into the TCA cycle is inhibited by the presence of a high cellular concentration of
1. Taken up by postsynaptic neurons
2.Recycled back into the presynaptic neuron
3.Removed and taken around the rest of the body
4.Eliminated by substances contained within the cell body
The mode of communication between the neurons by sending electrical impulses known as _______.
4. Action potentials
4. Lou Gehrig’s disease
Which of the following is a genetic disorder that induces neurons in the brain to drain away and die?
3. Multiple sclerosis
4.All of the above
4.Both (a) and (b)
Which of the following is the cause for transmission of nerve impulse through nerve fibre in a single direction?
1.Neurotransmitters released by dendrites.
2. Neurotransmitters released by axon endings.
3.Nerve fibre is insulated by a medullary sheath
4. None of the above.
Which of the intermediate of the Kreb’s cycle is utilised in the formation of amino acids?
1. Citric acid
________ accepts hydrogen from malate