________ accepts hydrogen from malate
1.FAD
2.NAD
3.NADP
4.FMN
Posted Date:-2021-02-22 06:41:27
In the angiosperms, the endosperm is formed
1.before fertilization
2.after fertilization
3.along with fertilization
4.None of the above
Posted Date:-2021-02-22 06:41:27
A single molecule of glucose generates _________ molecules of acetyl CoA, which enters the Krebs cycle.
1.4
2.3
3.2
4.1
Posted Date:-2021-02-22 06:41:27
The typhlosole in earthworm is related to
1.respiration
2.excretion
3.absorption
4.reproduction
Posted Date:-2021-02-22 06:41:27
Acetyl CoA is formed from pyruvate by__________ reaction
1.Dehydration
2. Reduction
3. Oxidative decarboxylation
4.Dephosphorylation
Posted Date:-2021-02-22 06:41:27
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 _______.
1.Botulism
2.Myasthenia gravis
3.Multiple sclerosis
4. Both A and B
Posted Date:-2021-02-22 06:41:27
ATP synthesis is powered by
1. Coenzyme motive force
2. cAMP
3.proton gradient
4.GTP hydrolysis
Posted Date:-2021-02-22 06:41:27
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
Posted Date:-2021-02-22 06:41:27
Colour of the body in earthworms is due to the presence of
1.Haemoglobin
2.Blood
3.Porphyrin
4.Haemocyanin
Posted Date:-2021-02-22 06:41:27
Dopamine, serotonin and noradrenaline are collectively called _______.
1. Amines
2.Hallucinogens
3.Anxiolytics
4.Neurotransmitters
Posted Date:-2021-02-22 06:41:27
FAD is reduced in which of the reaction of the Kreb’s cycle?
1. Isocitrate to oxaloacetate
2.Succinyl CoA to Succinate
3. Fumarate to malate
4. Succinate to fumarate
Posted Date:-2021-02-22 06:41:27
Which of the tissue culture will form a triploid plant
1. endosperm
2.pollen
3.megaspore
4.ovule
Posted Date:-2021-02-22 06:41:27
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
Posted Date:-2021-02-22 06:41:27
In earthworm, the mouth is located on
1.Stomium
2.Peristomium
3.Prostomium
4.Protostomium
Posted Date:-2021-02-22 06:41:27
Krebs cycle occurs in aerobic respiration due to
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
Posted Date:-2021-02-22 06:41:27
Product of Krebs cycle essential for oxidative phosphorylation is _______
1.NADPH and ATP
2.Acetyl CoA
3.CO2 and oxaloacetate
4.NADH and FADH2
Posted Date:-2021-02-22 06:41:27
Region of earthworm that is a forest of nephridia is
1.Pharyngeal region
2.Clitellar region
3.Typhlosolar region
4.Intestinal region
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The cavity of the diencephalon is known as _______.
1.First ventricle
2.Third ventricle
3.Second ventricle
4.Fourth ventricle
Posted Date:-2021-02-22 06:41:27
The earthworm is placed under the group
1.Polychaeta
2.Hirudinea
3.Oligochaeta
4.Crustacea
Posted Date:-2021-02-22 06:41:27
The entry of pyruvate into the TCA cycle is inhibited by the presence of a high cellular concentration of
1.Pyruvate
2.NADH
3.Coenzyme A
4.AMP
Posted Date:-2021-02-22 06:41:27
The excess amount of produced neurotransmitters by presynaptic neurons is __________.
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
Posted Date:-2021-02-22 06:41:27
The mode of communication between the neurons by sending electrical impulses known as _______.
1.Membrane potentials
2.Neuromodulators
3. Neurotransmitters
4. Action potentials
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The most effective organ for food digestion in earthworm is
1. Mouth
2.Buccal cavity
3.Pharynx
4.Stomach
Posted Date:-2021-02-22 06:41:27
The parasite found in the seminal vesicle of earthworms are
1.Nosema
2. Sarcocystis
3.Monocystis
4.Nyctotherus
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The typhlosole found in Pheretima occurs in
1.Stomach
2.Intestine
3.Oesophagus
4.Gizzard
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This animal does not show any metamorphosis of larval stage
1.Asteria
2.Musca domestica
3.Pheretima Posthuma
4.Butterfly
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Which of the following disorder causes dopamine neurons to die?
1.Seizure disorder
2.Multiple sclerosis
3.Parkinson’s disease
4. Lou Gehrig’s disease
Posted Date:-2021-02-22 06:41:27
Which of the following is a genetic disorder that induces neurons in the brain to drain away and die?
1. Poliomyelitis
2.Encephalitis
3. Multiple sclerosis
4.Huntington’s disease
Posted Date:-2021-02-22 06:41:27
Which of the following is called the common neurotransmitter?
1.Acetylcholine
2.Dopamine
3.Serotonin
4.All of the above
Posted Date:-2021-02-22 06:41:27
Which of the following is not formed during the Krebs cycle?
1.Lactate
2.Isocitrate
3.Succinate
4.Both (a) and (b)
Posted Date:-2021-02-22 06:41:27
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.
Posted Date:-2021-02-22 06:41:27
Which of the intermediate of the Kreb’s cycle is utilised in the formation of amino acids?
1. Citric acid
2.Malic acid
3.Isocitric acid
4.𝛼-ketoglutaric acid
Posted Date:-2021-02-22 06:41:27