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23.04.2021, adminName any two types of tropic movement in plants. Answer i Quesyions ii Chemotropism. Name the plant hormone that inhibits growth and also help in wilting of leaves. Answer The plant hormone that inhibits growth and also helps in wilting of leaves in abscisic acid.
Which hormone is responsible for the secondary sexual characters in male human beings? Answer Testosterone is responsible for the secondary sexual characters in male human beings. Name the sensory receptors found in the nose and the tongue.
Answer Olfactory receptors and gustatory receptors are the sensory receptors found in nose and on the tongue respectievely. How do the shoot and roots of a plant respond to the pull of earth's gravity? Answer Roots grow downwards, towards gravity while shoot usually grow upwards and away from earth.
Name one plant hormone which inhibit growth. Write its one more function. Answer Abscisic acid is a plant hormone which inhibits growth. Name the components of nervous system? Answer i Voluntary actions: are controlled by cerebellum. How does feedback mechanism regulate the hormone secretion? Answer The feedback mechanism regulates the timing and amount of hormone to be secreted. For example, if a person has more sugar in his blood, it is detected ch 7 maths class 10 extra questions dataset cells of pancreas.
As a xataset, more insulin will be secreted to oxidise the sugar. In opposite case, the secretion of insulin will be depleted. Explain the cause of shoots of the plant bending towards light. Answer Stems are positively phototrophic and questinos towards the direction of light. Auestions movement is due to occurrence of more auxin on the darker side and lesser auxin on the illuminated. As a result, there is more ch 7 maths class 10 extra questions dataset on the darker side which causes the stem to Ch 3 Maths Class 10 Extra Questions Javascript bend towards light.
How do auxins promotes the growth of a tendril around a support. Describe in berief? Answer Auxins produced in the shoot tip move qhestions in the plant. These auxins cause cell elongation in the coass tissues. In the tendrils, auxins move away from the point of contact with the supporting object. More growth occurs on the side away from the support.
As a result of unequal growth on the two sides, the tendril coils around the support. Name a plant hormone which is essential for cell division. Quetions its role. Qurstions a Plant hormones are the chemicals secreted by the plants which helps to co-ordinate growth, development and responses to the environment. Cytoldnin is hormone involved in phototropism. When growing plant detects light, auxin is synthesized at the shoot tip and helps the cell to grow longer.
When light comes from other side of the ch 7 maths class 10 extra questions dataset, auxin diffuses to shady side of the shoot. Hormones are needed by our body in an appropriate amount, slightly ch 7 maths class 10 extra questions dataset or less secretion extrs disorder in our body.
Illustrate this by using three example. Answer a Hypersecration more secration and hyposecration less secration of ch 7 maths class 10 extra questions dataset hormones may cause certain disorders.
They are. Hyposecration of growth harmone can cause dwarfism. When secrated in lower amount, body suffers from diabetes. List three differences in the movement of leaves of a Touch-me-not plant datqset plant of Mimosa family when touched and movement of a tendril towards a support.
Why we call pituitary gland as master gland? Where is it located and what are the functions? Answer Qeustions pituitary glands in our body is meant to control various activities of other glands. Hence called the master glands. It is located just below the hypothalamus at dataseg base of the brain.
It secretes five important hormones which are:. Answer a Three growth hormones in plants are:. It promotes elongation and division of cell and root formation. Yet plants have no nervous dztaset and no muscle tissue, they maaths electrical and chemical means to convey the information from one cell to another cell.
The leaves of the sensitive plant Mimosa ch 7 maths class 10 extra questions dataset folds up in response to touch. These leaf movements are independent of growth whereas, the directional movement of the shoot of a germinating seedling breaking through the soil is growth dependent. Notes of Chapter 7 Control and Coordination. Previous Post Next Post. Contact form. LinkList ul li ul'. Tabify by Templateify v1.
Should we work it outover carcass forms referred to as stations. The good select Village Promotion as well as selling pick should have innovative products that have been cheap. Modelism : Yacht devise .
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