MCQ Class 10 Science Chapter 6 Control And Coordination Advertisement MCQ’s For All Chapters – Science Class 10th 1. Which plant hormone promotes dormancy in seeds and buds?Abscisic acidAuxinGibberellinCytokininQuestion 1 of 152. Roots of plants are:positively phototropicpositively geotropicnegatively geotropicNone of theseQuestion 2 of 153. Response of plant roots towards water is called:GeotropismChemotropismPhototropismHydrotropismQuestion 3 of 154. Movement of sunflower in accordance with the path of Sun is due toHydrotropismChemotropismGeotropismPhototropismQuestion 4 of 155. Which plant hormone promotes cell division?Abscisic acidAuxinGibberellinCytokininQuestion 5 of 156. The main function of abscisic acid in plants isto increase the length of cells.to promote cell division.to inhibit growth.to promote growth of stem.Question 6 of 157. Fall of mature leaves and fruits from plants is triggered by which of the following substance?Abscisic acidAuxinCytokininGibberellinQuestion 7 of 158. Any change in the environment to which an organism responds is calledhormonecoordinationstimulusresponseQuestion 8 of 159. A part of the body which responds to the in-structions sent from nervous system is calledmusclesreceptoreffectornervesQuestion 9 of 1510. The longest fibre on the cell body of a neuron is calleddendritescytoplasmsheathaxonQuestion 10 of 1511. Which nerves transmit impulses from the central nervous system towards muscle cells?Relay nervesSensory nervesMotor nervesCranial nervesQuestion 11 of 1512. A microscopic gap between a pair of adjacent neurons over which nerve impulses pass is calledsynapseneurotransmitterdendritesaxonQuestion 12 of 1513. The highest coordinating centre in the human body iskidneyspinal cordheartbrainQuestion 13 of 1514. Main function of cerebrum isthinkingbalancingmemoryhearingQuestion 14 of 1515. Posture and balance of the body is controlled byMedulla oblongataCerebrumCerebellumPonsQuestion 15 of 15 Loading...
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