This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 7 Control And Coordination – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 7 Control And Coordination Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Taste receptors are A) Phonoreceptors. B) Statoreceptors. C) Olfactory receptors. D) Gustatory receptors. Show Answer Correct Answer: D) Gustatory receptors. 2. Amount of Neurons Embedded in Nervous System Approximately ..... A) 10 billions. B) 1 billion. C) 10 millions. D) 10 trillions. Show Answer Correct Answer: A) 10 billions. 3. Movement in Leaves of Touch Me Not PlantExcavation in the plant ..... A) Nostic is my stick. B) Tropic app. C) Thigmo Sparsa. D) All the above. Show Answer Correct Answer: A) Nostic is my stick. 4. What Is The Importance Of Coordination A) Coordination allows plants to optimize their growth and resource use, ensuring they can effectively respond to changes in their environment, such as light availability and water levels. B) Coordination allows Animals to optimize their growth and resource use, ensuring they can effectively respond to changes in their environment, such as light availability and water levels. C) Both A and B. D) None Of The Above. Show Answer Correct Answer: A) Coordination allows plants to optimize their growth and resource use, ensuring they can effectively respond to changes in their environment, such as light availability and water levels. 5. What is the role of auxin that causes a plant to bend towards light? A) The concentration of auxin in the plant increases when there is light. B) Auxin causes uniform growth on every stem. C) Auxin causes cells that are on the dark side to grow faster. D) Auxin causes the increase in the number of plant cells. Show Answer Correct Answer: C) Auxin causes cells that are on the dark side to grow faster. 6. Butterflies are being attracted by Nectar in Flower.This is the example for ..... This is an example of the plant ..... app. A) Thigmotropism tactile app. B) Chemo Tropism Chemical app. C) Both both. D) Light Tropism Light app. Show Answer Correct Answer: B) Chemo Tropism Chemical app. 7. What is the role of neurotransmitters in the nervous system? A) To speed up nerve impulses. B) To transmit signals across synapses. C) To protect neurons. D) To generate electrical impulses. Show Answer Correct Answer: B) To transmit signals across synapses. 8. Which nerves arise from the brain and emerges through the skull A) Spinal nerves. B) Thoracic nerves. C) Cranial nerves. D) Lumbar nerves. Show Answer Correct Answer: C) Cranial nerves. 9. What does rooting hormone powder do? A) Encourages growth of flowers. B) Encourages growth of stems. C) Inhibits growth of roots. D) Encourages growth of roots. Show Answer Correct Answer: D) Encourages growth of roots. 10. Phyto Harmones That Removes Seed Dormancy ..... Name of Faito Hormones A) Axin Auxin. B) Gibberellin Gibberlin. C) Cy Tokito Cytokinin. D) Etelene Itinlin. Show Answer Correct Answer: B) Gibberellin Gibberlin. 11. Roots of plants are: A) Positively geotropic. B) Negatively geotropic. C) Positively phototropic. D) None of these. Show Answer Correct Answer: A) Positively geotropic. 12. Gas Releases From Ripened Fruits ..... A) Ethene Ethan. B) Asetaline acetylin. C) Etelene ethylene. D) Ally he ab. All of the above. Show Answer Correct Answer: C) Etelene ethylene. 13. The following is not the part of the part of the part of the part ..... A) AXON EXON. B) Dendrite Dendright. C) Synapse nervous negotiation. D) Cyton cell body. E) Myline sheath. Show Answer Correct Answer: C) Synapse nervous negotiation. 14. Which of the following statements is the best to explain the need for homeostasis to the organism? A) Avoid sudden death. B) Maintain constant body temperature. C) Ensure that all enzymes involved in chemical reactions work well. D) Provides optimum internal environment for efficient metabolic activity. Show Answer Correct Answer: D) Provides optimum internal environment for efficient metabolic activity. 15. Where does urea enter the blood? A) Small intestine. B) Kidney. C) Spleen. D) Liver. Show Answer Correct Answer: D) Liver. 16. Iodine is necessary for the synthesis of which of the following hormone? A) Adrenaline. B) Auxin. C) Thyroxine. D) Insulin. Show Answer Correct Answer: C) Thyroxine. 17. Thinking part of brain is A) Hind brain. B) Mid brain. C) Fore brain. D) Hypothalamus. Show Answer Correct Answer: C) Fore brain. 18. Which of the following plant part exhibits negative phototropism A) Root. B) Branch. C) Leaves. D) Non of this. Show Answer Correct Answer: A) Root. 19. Which of the following is NOT a part of the neuron? A) Dendrite. B) Axon. C) Cell body. D) Cerebrum. Show Answer Correct Answer: D) Cerebrum. 20. The following changes were observed when the dog removed the pancreas from the body. A) Increased levels of glycogen in blood in blood. B) Increased levels of glucose in blood. C) Decrease in blood glucose size in glucose in glucose. D) Decreasing the size of glycogen in blood in glycogen in glycogen in decreased levels. Show Answer Correct Answer: B) Increased levels of glucose in blood. 21. What is the main function of the medulla oblongata in the human brain? A) Regulating heart rate and breathing. B) Processing visual information. C) Controlling voluntary movements. D) Storing memories. Show Answer Correct Answer: A) Regulating heart rate and breathing. 22. What is the corrective mechanism occurred when body temperature decrease from the normal? A) Sweating. B) Hair bends. C) Blood vessels will contract. D) The skeletal muscles are not active. Show Answer Correct Answer: C) Blood vessels will contract. 23. The motion in plants that do not comply with the direction of the wife ..... A) Tropic Movements App Motions. B) Nastic movement my stick motion. C) Both both. D) Thigmo Tropism. Show Answer Correct Answer: B) Nastic movement my stick motion. 24. The highest coordinating center in the human body is A) Spinal cord. B) Heart. C) Brain. D) Kidney. Show Answer Correct Answer: C) Brain. 25. Harms that increase the length of the cells are nasal A) Cytokinin. B) Auxin. C) Gibberellins. D) Abscisic acid. Show Answer Correct Answer: B) Auxin. 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