Read the following sentences carefully, and choose the incorrect one:

Pituitary gland is present just below the brain. The gland secretes a number of hormones. One of the hormone secreted by pituitary gland is growth hormone. The growth hormone controls the growth of the human body.

Which of the following is not an involuntary action?

Involuntary action are those actions that are not under our direct control such as heartbeat, breathing, Peristatic movement etc. These are controlled by medulla. Chewing is under voluntary control and controlled by lobes present in “Cerebral cortex”.

Consider the following statements and choose the correct one:

Here, all these statements are correct. Hence, your answer will be option [D].

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

There are mainly two types of nerves in our body, “Cranial nerve” and “Spinal nerves”. The “Cranial nerves” connect all the parts in the head directly to brain. The “Spinal nerves” connect all the remaining parts of the body like muscles and skin to the spinal cord. But there is a also third type of nerves, called visceral nerves. Most of the visceral nerves connect the internal organs of the body to spinal cord though some also connect to “Brain”.

The growth of tendril in pea plants is due to

Tendrils are the thin thread-like groups on the stem or leaves of climbing plants. These are sensitive to touch of other parts objects (i.e. thigmotropic). When a tendril touches an object, then the site in contact with object grows slowly than its other side, (i.e. rapid cell divisions in cells that are away from the support). This causes the tendril to bend towards the object by growing towards it, wind around object and cling to it.

Which of the following statement is or are correct?

Here, all these statements are correct. Hence, your answer will be option [D].

The shape of guard cells changes due to change in the

The shape of guard cells changes due to amount of water in them. The guard cell swell when water flows into them, causing the stomatal pore to open. Similarly, the pore closes if the guard cells shrink, due to the loss of water in them.

Select the mis-matched pair

Adrenaline is secreted by the adrenal glands, located on top of kidneys. Growth hormone is secreted by the pituitary gland.

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

Abscisic acid is a plant hormone which functions mainly as a growth inhibitor. Abscisic acid promotes the dormancy in seeds and buds. It also promotes the closing of stomata. Abscisic Acid promotes the wilting and falling of leaves which is called “abscission”.

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

The main symptom of goitre is that the neck of the person appears to be swollen due to the enlargement of thyroid gland, located in the neck. People are advised to use iodised salt for cooking food, so as to prevent goitre disease.

Class 10 Science Chapter 6 MCQ Control and Coordination

Updated on April 26, 2023
by Tiwari Academy

Class 10 Science Chapter 6 MCQ (Multiple Choice Questions) of Control and Coordination. MCQs are prepared including intext questions and exercises questions. These MCQ Online Tests covers the entire chapter 6 of grade 10 science. Terms related to organs and hormones responsible for the control and coordination are given here in the format of MCQ Quiz. Practice these objective questions to clear the concepts of chapter 6 of standard X Science.

Class 10 Science Chapter 6 MCQ Online Test

Class: 10	Science
Chapter: 6	Control and Coordination
Contents:	MCQ Online Tests with Answers
Session:	CBSE 2024-25

Class 10 Science Chapter 6 MCQ Test for Revision

Class 10 Science Chapter 6 MCQ Online Test with answers and explanation. All the questions are important for the exams whether it is class test or terminal exams. All the questions are prepared from NCERT Textbook for class 10 Science only. Answers and Explanation of the questions are also confined to NCERT Books only.

Priya is writing some statements, choose the correct statement and help him:

[A]. The hormones are poured directly into the blood and carried throughout the body by blood circulatory system.

[B]. The hormones have their effect at the sites different from the sites where they are made so they are called chemical messengers.

[C]. The hormones act on specific tissue or organ is called the target organs.

[D]. All the above

View Answer

Junction between two neurons is called

[A]. Cell junction

[B]. Neuro muscular junction

[C]. Neural joint

[D]. Synapse

View Answer

Which of the following statement is or are incorrect?

[A]. The testes are gland which act as endocrine gland and secrete the hormone called is testosterone.

[B]. Some of the glands in our body have both exocrine and endocrine function.

[C]. A hormone is produced in one part of the body and it acts on the same part of the body.

[D]. None of the above.

View Answer

Vikas is doing his homework which is given by his teacher. Would you help him to choose the correct sentences?

[A]. The hormones produced by endocrine glands act as messenger between the nervous system and the organs of our body.

[B]. The endocrine system also helps in coordinating the activities of our body.

[C]. A group of endocrine glands which produce various hormones is called an endocrine system.

[D]. All the above.

View Answer

The hormone which increases the fertility in males is called

[A]. Oestrogen

[B]. Testosterone

[C]. Insulin

[D]. Growth hormone

View Answer

Which statement is not true about thyroxin?

[A]. Iron is essential for the synthesis of thyroxin

[B]. It regulates carbohydrates, protein and fat metabolism in the body

[C]. Thyroid gland requires iodine to synthesis thyroxin

[D]. Thyroxin is also called thyroid hormone

View Answer

Which of the following statement is or are incorrect?

[A]. Brain is the highest coordinating centre in the body

[B]. The forebrain consists of three centres called pons, cerebellum and medulla.

[C]. The central nervous system consists of the brain and the spinal cord.

[D]. The job of the central nervous system is to collect all the information from all the receptors in our body.

View Answer

Involuntary actions in the body are controlled by

[A]. Medulla in forebrain

[B]. Medulla in midbrain

[C]. Medulla in hindbrain

[D]. Medulla in spinal cord

View Answer

Which of the following statements about the transmission of nerve impulse is incorrect?

[A]. Nerve impulse travels from dendritic end towards axonal end.

[B]. At the dendritic end electrical impulses bring about the release of some chemicals which generate an electrical impulse at the axonal end of another neuron.

[C]. The chemicals released from the axonal end of one neuron cross the synapse and generate a similar electrical impulse in a dendrite of another neuron.

[D]. A neuron transmits electrical impulses not only to another neuron but also to muscle and gland cells.

View Answer

Q10

Harleen is completed her science chapter where she wrote some statements on the types of neurons. She wants to know whether the statements are correct or not? Harleen wants to take help from you:

[A]. Sensory neurons transmit impulses from the sensory cells or receptors towards the central nervous system as spinal cord and brain.

[B]. Motor neurons transmit impulses from the central nervous system towards the muscle cells or effectors.

[C]. Relay neurons occur in the central nervous system where they serve as links between other neurons.

[D]. All the above.

View Answer

Q11

The substance that triggers the fall of mature leaves and fruits from plants is due to

[A]. Auxin

[B]. Gibberellin

[C]. Abscisic acid

[D]. Cytokinin

View Answer

Q12

Riya is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. A microscopic gap between a pair of adjacent neurons over which nerve impulses pass when going from one neuron to the next is called a synapse.

[B]. The shorter fibre on the body of a neuron are called dendrites.

[C]. Synapse actually act like two-way valves.

[D]. The longest fibre on the cell body of a neuron is called Axon.

View Answer

Q13

The movement of sunflower in accordance with the path of sun is due to

[A]. Phototropism

[B]. Geotropism

[C]. Chemotropism

[D]. Hydrotropism

View Answer

Q14

The growth of pollen tubes towards ovules is due to

[A]. Hydrotropism

[B]. Chemotropism

[C]. Geotropism

[D]. Phototropism

View Answer

Q15

Consider the following statements and choose the incorrect one:

[A]. All the nerves of the body together make up the peripheral nervous system.

[B]. The simplest form of response in the nervous system is reflex action.

[C]. The pathway or route taken by nerve impulse in a reflex action is called reflex area.

[D]. Moving our hand away on touching a hot plate is an example of reflex action.

View Answer

Q16

Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. The non-directional movement of a plant part in response to light is called for Photonasty.

[B]. The non-directional movement of a plant part in response to touch of an object is called Thigmonasty.

[C]. The response of plants to gravity is called geotropism or gravitropism.

[D]. The plant stem response to light and bends towards it due to the action of “gibberellin hormones”.

View Answer

Q17

Which of the following is not associated with growth of plant?

[A]. Auxin

[B]. Gibberellins

[C]. Cytokinin

[D]. Abscisic acid

View Answer

Q18

The main function of abscisic acid in plants is to

[A]. Increase the length of cells

[B]. Promote cell division

[C]. Inhibit growth

[D]. Promote growth of stem

View Answer

Q19

Spinal cord originates from

[A]. Cerebrum

[B]. Medulla

[C]. Pons

[D]. Cerebellum

View Answer

Q20

Which of the following statements are true?

[A]. Sudden action in response to something in the environment is called reflex action, and Sensory neurons carry signals from spinal cord to muscles.

[B]. Sudden action in response to something in the environment is called reflex action, and Motor neurons carry signals from receptors to spinal cord.

[C]. Sudden action in response to something in the environment is called reflex action, and The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc.

[D]. Sudden action in response to something in the environment is called reflex action, and Sensory neurons carry signals from spinal cord to muscles, and Motor neurons carry signals from receptors to spinal cord.

View Answer

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What is function of Medulla in Hindi-Brain in 10th Science Chapter 6?

Medulla controls all involuntary actions including blood pressure, salivation and vomiting.

How do dendrils cling the support as per Class 10 Science chpater 6?

Tendrils are sensitive to touch. When they come in contact with any support, the part of the tendril in contact with the object does not grow as rapidly as the part of the tendril away from the object. This causes the tendril to circle around the object and thus cling to it.

Why do plants appear to bend towards light according to 10th Science Chapter 6?

When growing plants detect light, a hormone called auxin, synthesised at the shoot tip, helps the cells to grow longer. When light is coming from one side of the plant, auxin diffuses towards the shady side of the shoot. This concentration of auxin stimulates the cells to grow longer on the side of the shoot which is away from light. Thus, the plant appears to bend towards light.

Name the hormone of plant which inhibits the growth as per 10th Science NCERT?

Abscisic acid is one example of a hormone which inhibits growth of plants.

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Last Edited: April 26, 2023