Class 10 Science Chapter 7 MCQ

Class 10 Science Chapter 7 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 7 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 7 of standard X Science.

Class 10 Science Chapter 7 MCQ Online Test for 2020-2021

Class: 10Science
Chapter: 7Control and Coordination
Contents:MCQ Online Tests with Answers

Class 10 Science Chapter 7 MCQ Test for Revision

Class 10 Science Chapter 7 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.

Q1

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
Q2

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.




Q3

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

[A]. The control and coordination in higher animals called vertebrates take place through nervous system as well as hormonal system called endocrine system.
[B]. The function of nervous system is to co-ordinate the activities of our body.
[C]. Our nervous system also passes information from one internal system to another.
[D]. The nervous system is made up of the smallest special cell called neurons.
Q4

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.




Q5

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
Q6

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

[A]. Phototropism
[B]. Geotropism
[C]. Chemotropism
[D]. Hydrotropism
Q7

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

[A]. The nerves which carry messages from the body parts to the brain or spinal cord are called sensory nerves.
[B]. There is also a third type of nerves called cranial nerves.
[C]. The brain and the spinal cord are connected to the all the senses organ and other parts of our body by millions of nerves.
[D]. The nerves which carry messages from the brain or spinal cord to the body parts for action are called motor nerves.



Q8

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”.
Q9

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

[A]. Thyroid glands gland makes a hormone called thyroxine which contains Iodine.
[B]. The main symptom of goitre is that the rib cage of a person appears to swollen due to enlargement of thyroid gland.
[C]. The deficiency of iodine in the diet of a person produces less thyroxine hormone.
[D]. There are four small parathyroid glands which are embedded in the thyroid gland.
Q10

Posture and balance of the body is controlled by

[A]. Cerebrum
[B]. Cerebellum
[C]. Medulla
[D]. Pons
What is function of Medulla in Hindi-Brain?

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

How do dendrils cling the support?

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?

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?

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



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