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

Junction between two neurons is called

[A]. Cell junction
[B]. Neuro muscular junction
[C]. Neural joint
[D]. Synapse
Q2

Which of the following endocrine glands is unpaired?

[A]. Adrenal
[B]. Testes
[C]. Pituitary
[D]. Ovary




Q3

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.
Q4

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




Q5

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

[A]. Phototropism
[B]. Geotropism
[C]. Chemotropism
[D]. Hydrotropism
Q6

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.
Q7

Badal appeared in class test but he confused to know the correct statement. Would you help him to know that?

[A]. The autonomic nervous system controls and regulate the function of the internal organs of our body involuntarily.
[B]. The voluntary nervous system helps us take voluntary actions which are under the conscious control of the brain.
[C]. When we are going to school, the brain analysis information and decide that since there is a risk of being late of school, so we should walk faster.
[D]. All the above



Q8

Select the mis-matched pair

[A]. Adrenaline: Pituitary gland
[B]. Testosterone: Testes
[C]. Estrogen: Ovary
[D]. Thyroxin: Thyroid gland
Q9

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.
Q10

Which is the correct sequence of the components of a reflex arc:

[A]. Receptors → Muscles → Sensory neuron → Motor neuron → Spinal cord
[B]. Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle
[C]. Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
[D]. Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle
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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