Coordination and Control – MDCAT Biology Chapter 17

Coordination and Control Chapter 17 Biology 10th MCQs for MDCAT Test Preparation with answers key, This Online Test will help you to prepare for Admission to Medical Universities i.e Jinnah Sindh Medical University, King Edward Medical University, Shaheed Mohtarma Benazir Bhutto Medical University, Liaquat University of Medical And Health Sciences. Mechanism of control and co-ordination, found only in multicellular animals, faster in action, having localized effects, involves in electrical and chemical transmission is: Nervous control Plants response to light due to the presence of a hormone in its growing tip, the hormone was named: Auxin The movements in plants occur in response to certain stimuli and the direction of response is related to the direction of stimulus. Such responses are called: Reflex Action Living organisms when repeat their biological or behavioral activities at regular intervals, this behavior is called: Biorythms The phenomenon in which the influence of day length on plants is studied is called: Photoperiodism Principal naturally occurring “auxins” of higher plants is: Indole Acetic Acid Which one of the following is not the role of Auxins? Seed dominance Gibberellins inject rice seedlings and produce a disease called: Foolish Seedling Cytokinins are originally obtained from: Coconut milk One of the naturally occurring cytokinin is: Zeatin

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