This quiz works best with JavaScript enabled. Home > Grammar > Sentence Structure > Coordination – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Coordination Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Transpiration cools a plant on a hot day. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. What is the reason of the movement of sunflower in accordance with the path of sun? A) Phototropism. B) Geotropism. C) Chemotropism. D) Hydrotropism. Show Answer Correct Answer: A) Phototropism. 3. A-the cerebral cortex contains sensory areas, motor areas and association areasR-these regions are responsible for intersensory associations, memory and communication A) A&R both true, R is correct explanation of A. B) A&R both true, but R is not correct explanation of A. C) A is true but R is false. D) Both A&R are false. Show Answer Correct Answer: C) A is true but R is false. 4. The hormones secreted by endocrine glands are released into the A) Bile. B) Venous blood. C) Saliva. D) Mucus. Show Answer Correct Answer: B) Venous blood. 5. How does the thymus gland function? A) Regulates the amount of calcium in the system. B) Signals the immune system to fight infections. C) All the above. D) None of the above. Show Answer Correct Answer: B) Signals the immune system to fight infections. 6. Which statement about nervous and endocrine control is not correct? A) Both nervous and endocrine control are activated by stimuli. B) Both nervous and endocrine control may be voluntary or involuntary. C) Nervous control is usually localised while endocrine control may affect more than one target organ. D) Nervous control produces faster responses than endocrine control. Show Answer Correct Answer: B) Both nervous and endocrine control may be voluntary or involuntary. 7. What is function of cerebellum? A) Controls balance. B) Memory center. C) Conscious thought. D) Control hearth rate. Show Answer Correct Answer: A) Controls balance. 8. Ligands and central metal ions are respectively A) Lewis base and lewis acid. B) Lewis acid and lewis base. C) Both lewis acid. D) Bothlewis base. Show Answer Correct Answer: A) Lewis base and lewis acid. 9. Secretion of estrogen is controlled by A) HCG. B) FSH. C) Progesterone. D) Testosterone. Show Answer Correct Answer: B) FSH. 10. Cecil wanted his paper crown to be a clever musical reference, and he decorated the edges with leaves from two plants, holly and ivy. A) No change. B) So. C) But. D) Or. Show Answer Correct Answer: B) So. 11. Which of the following statements is correct about node of Ranvier? A) Axolemma is discontinuous. B) Myelin sheath is discontinuous. C) Both neurilemma and myelin sheath are discontinuous. D) Covered by myelin sheath. Show Answer Correct Answer: B) Myelin sheath is discontinuous. 12. Which is true for hexaaminecobalt(III) chloride? A) Sp3d2, paramagnetic. B) D2sp3, dimagnetic. C) Sp32, diamagnetic. D) D2sp3, paramagnetic. Show Answer Correct Answer: B) D2sp3, dimagnetic. 13. Which plant hormone promotes cell division? A) Auxin. B) Gibberellin. C) Cytokinin. D) Abscisic acid. Show Answer Correct Answer: C) Cytokinin. 14. Efferent neurone is also known as motor neurone. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 15. Growth of pollen tube towards ovule during fertilization is an example of A) Phototropism. B) Hydrotropism. C) Chemotropism. D) Geotropism. Show Answer Correct Answer: C) Chemotropism. 16. The major hormones involved in the maintenance of blood glucose levels are produced by the: A) Liver. B) Pancreas. C) Thyroid gland. D) Gall bladder. Show Answer Correct Answer: B) Pancreas. 17. Which type of neuron transmits a signal from the central nervous system to an effector such as a muscle? A) Sensory. B) Motor. C) Relay. D) Dendrite. Show Answer Correct Answer: B) Motor. 18. The spin only magnetic moment of [MnBr4]$^{2-}$ is 5.9 BM. Predict the geometry of the complex ion A) Square planner. B) Tetrahedral. C) Trigonal planner. D) Trigonal pyramidal. Show Answer Correct Answer: B) Tetrahedral. 19. Which of the following is an example of a Prepositional Clause (PCl)? A) The bus which had been twenty minutes late broke down in the city centre. B) I was angry that the bus was so late. C) The old lady asked me when the bus was due. D) I was annoyed by the bus being late again. Show Answer Correct Answer: D) I was annoyed by the bus being late again. 20. Although we are fully conscious ..... we can't prevent thigh muscles from contract ..... such response is said to be A) Involuntary. B) Voluntary. C) Both. D) None. Show Answer Correct Answer: A) Involuntary. 21. Which of the following pairs represents linkage isomers A) [Pd (PPh$_{3}$)$_{2}$ (NCS)$_{2}$] and [Pd (PPh$_{3}$)$_{2}$ (SCN)$_{2}$]. B) [Co(NH$_{3}$)5NO$_{3}$] SO$_{4}$ and [Co(NH$_{3}$)$_{5}$SO$_{4}$] NO$_{3}$. C) [PtCl$_{2}$(NH3)$_{4}$]Br$_{2}$ and [Pt Br$_{2}$ (NH$_{3}$)$_{4}$] Cl$_{2}$. D) [Cu(NH$_{3}$)$_{4 }$[PtCl$_{4}$]] and [Pt(NH$_{3}$)$_{4}$] [CuCl$_{4}$]. Show Answer Correct Answer: A) [Pd (PPh$_{3}$)$_{2}$ (NCS)$_{2}$] and [Pd (PPh$_{3}$)$_{2}$ (SCN)$_{2}$]. 22. What is photoreceptor? A) Respiratory pigment. B) Photosynthetic pigment. C) Photoreceptor pigment. D) Photolytic pigment. Show Answer Correct Answer: C) Photoreceptor pigment. 23. In a neuron, conversion of electrical signal to a chemical signal occurs at/in A) Cell body. B) Axon terminal. C) Dendritic end. D) Axon. Show Answer Correct Answer: B) Axon terminal. 24. What happens to the sarcomere when striated muscle contracts? A) A-band shorten. B) I-band stays the same. C) Z-lines brought closer to each other. D) H-band become wider. Show Answer Correct Answer: C) Z-lines brought closer to each other. 25. A-adrenaline and nor adrenaline both are rapidly secreted in response to stress of any kindR-both the hormones increase the heartbeat and rate of respiration A) A&R both true, R is the correct explanation of A. B) A&R both true, but R is not correct explanation of A. C) A is true, but R is false. D) Both A and R false. Show Answer Correct Answer: B) A&R both true, but R is not correct explanation of A. ← PreviousNext →Related QuizzesGrammar QuizzesCoordination Quiz 1Coordination Quiz 2Coordination Quiz 3Coordination Quiz 4Coordination Quiz 5Coordination Quiz 6Coordination Quiz 7Coordination Quiz 8Coordination Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books