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28.11.2020, admin
NCERT Solutions for Class 10th Science Chapter 7 : All Q&A Science NCERT Grade 10, Chapter 7, Control and Coordination focuses on how organisms respond to a change in its environment. The chapter explains the controlled movement of organisms in detail. The chapter, Control and Coordination is covered under three different sections. In the first section, the nervous system of animals is covered in a comprehensive manner. CBSE NCERT Solutions for Class 10th Science Chapter 7: Control and Coordination. NCERT Class 10 Science Solutions for Chapter 7. Sep 27, �� NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination Control and co-ordination in animals and plants: Tropic movements in plants; Introduction to plant hormones; Control and co-ordination in animals, nervous system; voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones.
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You can also download the Class 10 Science Control and Coordination solution Hindi medium from Vedantu app as well by following the similar procedures, but Ncert Solutions For Class 10th Science Chapter 1 Form you have to download the app from Google play store before doing that. The best feature of these solutions is a free download option. Students of Class 10 can download these solutions at any time as per their convenience for self-study purpose. Chapter Description: Living organisms owe their survival to various processes going on within them, but movement and interaction for every living organism are equally important as they are a means of acquiring food for most of them.

Plants exhibit the evidence of movement in the form of growth from seeds to plants or trees. Movement is obligatory for animals to communicate and survive. Our body is designed to respond to a different environment with a controlled reaction towards them. The various organ systems coordinate among themselves to deliver a proper controlled response to the given situation.

Receptors are responsible for picking up sensory stimuli and transmitting the signals to the brain or spinal cord. It will be of great help in your 10th board exam preparation. Examples of plant hormones are auxin, gibberellins etc. How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light? The movements of the leaves of the sensitive plant are touch sensitive and independent of growth while the movement of the shoot towards light is growth related and known as phototropism.

When tendrils 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 is caused by the action of auxin hormone.

Less auxin occurs on the side of contact as compared to the free side as a result, auxin promotes growth on the free side and the tendrils coil around the support.

Take two small beakers and label them as A and B. Fill beaker A with water. Now make a cylindrical-shaped roll from a filter paper and keep it as a bridge between beaker A and beaker B, as shown in the figure.

Attach few germinating seeds in the middle of the filter paper bridge. Now, cover the entire set-up with a transparent plastic container so that the moisture is retained.

Observation: The roots of the germinating seeds will grow towards beaker A. Chemical coordination takes place in animals with the help of hormones.

Hormones are the chemical fluids that are secreted by the glands of the endocrine system. Hormones regulate the overall growth and development of the animals. Iodine stimulates the thyroid gland to produce thyroxin hormone. It regulates carbohydrate, fat, and protein metabolism in our body.

Deficiency of this hormone results in the enlargement of the thyroid gland. This can lead to goitre, a disease characterized by swollen neck. Therefore, iodised salt is advised for normal functioning of the thyroid gland.

When someone is in danger or in emergency then adrenal gland secrete adrenaline hormone. It is secreted directly into the blood and is transported to different parts of the body.

It speeds up the heartbeat and hence supplies more oxygen to the muscles. This results in increasing breathing rate and blood pressure which enable them to fight with such urgent situation.




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