Read and download free pdf of CBSE Class 10 Science Control and Coordination Assignment Set B. Get printable school Assignments for Class 10 Science. Class 10 students should practise questions and answers given here for Chapter 7 Control And Coordination Science in Class 10 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 10 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 10 Science Chapter 7 Control And Coordination
Class 10 Science students should refer to the following printable assignment in Pdf for Chapter 7 Control And Coordination in Class 10. This test paper with questions and answers for Class 10 Science will be very useful for exams and help you to score good marks
Chapter 7 Control And Coordination Class 10 Science Assignment
Question. Which is/are correct correct about insulin?
(a) It controls blood sugar.
(b) It is produced by islets of Langerhans.
(c) It is produced by parathyroid gland.
(d) It is called the fight and flight hormone.
Answer : A , B
Question. Gustatoreceptors lie
(a) on the tongue
(b) in the nose
(c) in the ear
(d) in the eyes
Answer : A
Question. Gigantism results from
(a) growth hormone
(b) thyroxine
(c) adrenalin
(d) testosterone
Answer : A
Question. Synaptic terminal is the end of
(a) cyton
(b) dendrite
(c) axon
(d) none of the above
Answer : C
Question : Which Plant hormone essential for cell division ?
a. ethylene
b. gibberellins
c. auxin
d. cytokinin
Answer : D
Question : Name the place where largest number of neurons are found in the human body.
a. Stomach
b. Heart
c. Brain
d. Lungs.
Answer : C
Question : Auxins are
a. Vitamins
b. Enzymes
c. Proteins
d. Hormones
Answer : D
Question : The substance that cause fall of mature leave and fruits from plants is due to:
a. auxin
b. gibberllin
c. cytokinin
d. ABA
Answer : D
Question : Which hormone cause uterine contraction that leads to labour pain?
a. vasopressin
b. thyroxin
c. Estrogen
d. Progesterone
Answer : D
Mark the statements true(T) or false(F).
Question. Ovaries produce only one hormone.
Answer : false
Question. Spinal cord arises from the medulla.
Answer : true
Question. Human brain and spinal cord are solid.
Answer : false
Fill in the blanks.
Question. Cerebellumis the centre of ...... action and cerebrum controls ...... .
Answer : involuntary, intelligence
Question. The pituitary gland lies on ...... .
Answer : diencephalon
Question. In a nerve cell, ...... receive the stimulus and ...... transmits the impulse.
Answer : dendrons, axon
Question. ...... is the master gland.
Answer : Pituitary
Match the columns.
A B
(i) Diencephalon (a) Coordinating cerebellum and cerebrum
(ii) Spinal nerves (b) Rapid loss of water
(iii) Algesireceptors (c) Apical meristem
(iv) Pons (d) Controls hunger, thirst
(v) Auxin (e) Feeling of pain
(vi) Turgor change (f) 31 pairs
Answer : (i) (d) (ii) (f) (iii) (e) (iv) (a) (v) (c) (vi) (b)
CCT BASED QUESTIONS
While playing with her little brother in the garden, Pooja observed a very strange behavior of plants. She saw that the leaves of a creeper are getting closed with the touch. She is amused by this and tried to find out the reason behind this. Next day at the school she asked her science teacher that do plants have nervous system like us? Can they respond to the stimuli? Her teacher explained that: In the case of plants, they are completely devoid of the nervous system and other special organs. However, plants learn to respond to different stimuli by certain movements.This response may be rapid movements like nastic movement or slow process like tropism. Pooja’s teacher has given few questions to solve. Let’s help her to solve the questions.
Observe the diagram and answer the questions following it.
Question. In the figure we can see that the plant’s growth is affected by a specific stimulus. Both stem and leaves are affected by the stimulus. Below given are possible reasons of it.
A. Accumulation of auxin in parts of the stem that is away from light
B. Leaves are rearranged to capture more sunlight
C. Light doesn’t play any role in plant growth
Choose the correct reason;
a. Option A
c. Option C
b. Option B
d. both option A and B
Answer : D
Question. In the figure. We can observe few changes in the root growth. Which situation is explaining the growth perfectly?
a. The root is showing positive geotropism.
b. The root is showing positive phototropism.
c. The root growth is independent of any external stimuli
d. None of these
Answer : A
Question. Unlike us plants do not have any sense organs. They have few chemicals which produce responses. Those chemicals are called as
a) Pheromones
b) Phytohormones
c) Neurons
d) Nephrons
Answer : B
Question. Name the hormone which inhibit growth
a) auxin
b) gibberellin
c) abscisic acid
d) cytokinin
Answer : C
Very Short Answer
Question. Name the hormone which is associated with the metabolism of carbohydrates, proteins, calcium and phosphorus.
Answer: Thyroxine.
Question. Why do living organisms show movement?
Answer: To use changes in the environment to their advantage.
Question. What are the functions of the Hypothalamus?
Answer: Hypothalamus regulates the secretion of hormones from pituitary gland.
Question. Why are endocrine glands called ductless glands?
Answer: Endocrine glands are called ductless glands because they do not have any external duct to discharge their secretions into the blood stream.
Question. Where hypothalamus gland is located?
Answer: Hypothalamus gland is located in the brain.
Question. Give an example of a plant hormone that promotes its grow th. W’here is it synthesized?
Answer: Auxin promotes growth. It is synthesised at the shoot tip of the plant body.
Question. Mention the part of the body where gustatory and olfactory receptors are located.
Answer: Gustatory receptors are located in Cerebrum of fore-brain. Olfactory receptors are located in Olfactory lobe of fore-brain.
Question. Name the part of the brain which is concerned with muscular coordination in the body.
Answer: Cerebellum.
Question. Which part controls the voluntary actions?
Answer: Cerebrum of fore-brain.
Question. Why hormones are called as ‘chemical messengers’ ?
Answer: Hormones are carried in the blood streams to all parts of the body, so they are called ‘chemi¬cal messengers’.
Question. Name one plant growth hormone which retards growth during extremely dry season.
Answer: Abscisic acid
Question. What are endocrine glands?
Answer: Ductless glands which manufacture hormones and secrete them directly into the blood stream.
Question. Name the glands which secrete estrogen and progesterone.
Answer: Ovaries
Short Answer
Long Answer
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CBSE Class 10 Science Chapter 7 Control And Coordination Assignment
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Assignment for Science CBSE Class 10 Chapter 7 Control And Coordination
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Chapter 7 Control And Coordination Assignment Science CBSE Class 10
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Chapter 7 Control And Coordination Assignment CBSE Class 10 Science
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CBSE Science Class 10 Chapter 7 Control And Coordination Assignment
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