Adrenaline hormone plays an improtant role in combatting emergency situations explain write the difference between tropic and nastic movement.
Answers
Explanation:
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Endocrine gland for combating emergency is adrenal medulla. Hormone secreted during emergency is adrenaline. It is released from adrenal medulla which is the internal or inner part of the adrenal gland. Adrenaline is also called epinephrine. It is released during stress of any kind or emergency situations and is therefore called as emergency hormone and adrenal gland is called emergency gland. It also prepare the body during the fright, fight hence also called as 3F or fight, fight hormones. Adrenaline have effects on different organs of the body. It increases the heart beat, the strength of heart contraction and the rate of respiration. It increases the sweating, piloereaction (raising of hair), alertness and pupilary dilation. It also stimulates the breakdown of glycogen resulting in an increased concentration of glucose in blood. It also stimulates the breakdown of lipids and proteins.
Tropic movements 1. These movements are always in the direction of the stimulus.2. These movements are slow.3. These movements are exhibited by all parts of a plant. For example, movement of shoot towards the light and not towards gravity.
Nastic movements are plant movements that occur in response to environmental stimuli but unlike tropic movements, the direction of the response is not dependent on the direction of stimulus. Some examples of Nastic movements include the closing of the carnivorous Venus flytrap leaf when it captures prey or the folding of the mimosa leaf when it is disturbed. Different types of nastic movements
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