CBSE Notes for Class 10 Science Chapter 7 – Control and Coordination

Important Notes for CBSE Class 10 Science Chapter 7 – Control and Coordination. Control and Coordination Class 10 Notes and Study Material Download in PDF form.

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Control and Coordination Class 10 Notes

Plant hormones: They can also be termed as phyto hormones as phyto itself means plant. Plant hormones are responsible for growth and development of plants. There are various types of hormones such as auxin, gibberellin, cytokinin, ethylene and abscisic acid. Every hormone plays a very important role in normal growth, development and health of plants, they also responsible for prevention of diseases. Auxin was the first hormone which was 1st identified and responsible for phototropism. The cytokinin is the hormone mediates cell division. The gibberellin play vital role in germination of seeds, whereas abscisic acid called as stress hormone.

Tropic movement :The movement of plants when they receive any stimuli such as light, gravity, touch, chemicals or water. Tropic response can be positive or negative on the basis of direction of stimuli. Therefore there are 5 types of tropic movement such as phototropism, hydrotropism, gravitropism, thigmotropism and chemotropism. The examples of every tropic movement we can see practically in plants.

Nastic movement :As there are 2 basic movements present in plants such as tropic and nastic. Lets discuss about nastic movement. The nastic word itself suggest that movement will be non- directional. It also requires external stimuli such as light and temperature. This movement can be epinasty or can be hyponasty. So depending on the type of stimuli there are again 5 types of responses such as photonasty, nyctinasty, thigmonasty, thermonasty and seismonasty. These includes tendrils of leaf and stem.

Nervous system :Nervous system is specifically functions in the body for control and coordination, to regulate all the body movements and all senses. The structural and functional unit of nervous system is considered as neurons. The nervous system usually consist of two parts such as central nervous system and peripheral nervous system.

Peripheral Nervous System : It usually support the functioning of central nervous system, and help in control and coordination of the body. It is made up of autonomic nervous system and somatic nervous system. The autonomic nervous system has two parts such as sympathetic nervous system and parasympathetic nervous system. They play important role in sensation to stimuli.

Central Nervous System: CNS is the major and vital system present in the body. It consist of brain and spinal cord. The brain is enclosed by two cerebral hemisphere. Brain made up of three parts such as forebrain, midbrain and hindbrain. The forebrain contains frontal lobe, parietal lobe, occipital lobe and temporal lobe.

Endocrine System:Endocrine system is the complex network of glands such as duct less gland, which helpful in growth, development, reproduction and daily activities. The master gland present in endocrine system is pituitary gland and though this gland various hormones release such as estrogen, progesterone, testeron, LH, TSH, GH, prolacin, oxytocin, ADH etc. All the hormones presence is required to live a healthy life.

CBSE Notes for Class 10 Science Chapter 7 PDF

CBSE Notes for Class 10 Chapter 7

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