FSC Biology Book MCQs Chapter 3 Class 12





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Biology Ch 3 Class 12 Coordination and Control

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Type of neurons found exclusively in CNS are:

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Chemically auxins are

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Which one of the following is common to all neurons?

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Which of the following is not the function of the cerebrum?

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Direction of reflex action is from:

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The region where the impulse moves from one neuron to another is called ______.

NTS 2012
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The prolactin hormone, responsible for the activation of mammary glands to start producing milk, is a hormone of the:

NTS 2010
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Which type of sensory structures carry deep pressure and vibration sensations?

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Which of the following neurotransmitters function, both as neurotransmitter and hormones, decreasing our perception of pain?

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Cell membrane under resting conditions is impermeable to all the ions except

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The gland known as the “gland of emergency” is the:

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Which type of the receptors are present in the ear?

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On land, frogs are:

NUMS 2014
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Neurotransmitters trigger action potential in the postsynaptic neuron by changing the permeability of certain _________.

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_________ is sometimes given by injection as an emergency treatment in cardiac arrest:

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The _____ is the main nutritional part and it’s concerned with the biosynthesis of materials necessary for neurons.

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Which of the following is antagonist to Auxin in terms of promotion of stem growth?

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Type of sensations carried by nociceptors are:

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The autonomic nervous system controls all of the following activities except:

NTS 2014
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The 1st human hormone produced by recombinant DNA technology was:

NUMS 2016
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The _____ may be a cell, neuron ending or an organ that receives the stimulus.

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The directional movement toward or away from the stimulus is called:

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Diameter of an artery can be changed by:

NUMS 2015
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Deficient production of hormones by adrenal glands results in: .

NTS 2011
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Nissl’s granules are present in which part of the neuron?

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Hepatic and Pancreatic secretions are also stimulated by a hormone called:

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27 / 62

Which one of the following is a neurotransmitter?

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Which type of sensory structures carrying the touch sensations are present in papillae extending into ridges of the fingertips?

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Which of the following is used in brewing industry to promote malting:

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The nerve center for sight is located in the

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A _____ is a junction between two neurons or between a motor neuron and a muscle cell:

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All of the following hormones are secreted from anterior lobe of pituitary gland BUT:

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The phytohormones controlling the plant movements are?

NTS 2015 SMBBMC
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At the induction of action potential opening of Na+ gate with influx of Na+ is a _________ processes:

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Thyroid gland requires high amount of:

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36 / 62

Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering:

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Which body function is controlled through a positive feedback mechanism?

PMC 2020
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Neurons are cells adapted for the rapid transmission of electrical impulses. To do this, they have long thin processes called:

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In an experiment, the production of hormone secretin was blocked. As a result, levels of all of the following enzymes were affected EXCEPT:

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The spinal nerves are functionally:

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Which brain portion is responsible for controlling body coordination?

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How many meninges cover the human brain?

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Four events in the transmission of nerve impulses across synapses are:

I. depolarisation of the presynaptic membrane

II. propagation of postsynaptic action potential

III. reabsorption of the transmitter substance

IV. release of transmitter substance into the synaptic cleft

In which sequence do these events occur?

FIRST -> LAST

NTS 2014
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44 / 62

In plants, ______ hormone promotes closing of stomata in drought conditions.

NUMS 2019 Reconduct
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45 / 62

Which of the following is not secreted by thyroid gland?

NTS 2015 SMBBMC
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46 / 62

Normal action potential of a neuronal cell is :

 

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The estrogen hormone secretion during the oogenesis is stimulated by:

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48 / 62

Chlorosis, i.e., yellowish hue on the leaves results from

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Lymph nodes are not present:

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Which hormone is chemically a steroid?

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Normal resting membrane potential of a neuron is

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Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an _______ process.

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Type of neurons found exclusively in CNS are:

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Resting membrane potential of neurons is _______, while during active membrane potential the inner membrane surface becomes more _____ than the outside.

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The correct option about spinal nerves is:

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56 / 62

Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering:

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Which of the following is the function of adrenaline?

NUMS 2016
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Gibberellins may be substituted for _____ light, therefore promote flowering in long day plants.

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The sense organs of taste in tongue are known as:

NUMS 2014
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60 / 62

The only promoter of leaf senescence in the following plant hormones is:

61 / 62

Which of the following statement about neuron is incorrect?

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Na+ -K+ ATPase pump is important for:

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3 responses to “FSC Biology Book MCQs Chapter 3 Class 12”

  1. Thnx it is very helpful for me to know my progress after preparation of chapter.. thnx

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