General Science class 7, chapter 2 MCQs Transport System in Human and Plants Class 7 MCQs by Farhan gabolJuly 5, 2023July 25, 2023 Page No: 5 1. The relaxation phase of the human heart is called: Diastole Systole Pulmonary phase Atrial phase 2. Which of the following is responsible for the transport of water and minerals from leaves to other parts of the plant? Phloem Xylem Stomata Epidermis 3. In humans, the exchange of oxygen and carbon dioxide takes place in which organ? Lungs Heart Liver Kidneys 4. What is the function of the cortex in plant roots? Absorption of water and minerals Transport of sugars Storage of nutrients Protection against pathogens 5. Which of the following is responsible for the transport of hormones from roots to other parts of the plant? Phloem Xylem Stomata Root hairs 6. The human circulatory system is a closed system. What does this mean? Blood is pumped out of the body during circulation Blood flows through open vessels Blood does not flow continuously Blood flows in a continuous loop within vessels 7. What is the function of the pith in plant stems? Absorption of water and minerals Transport of sugars Storage of nutrients Protection against pathogens 8. In humans, the tricuspid valve is located between which two chambers of the heart? Left atrium and left ventricle Left atrium and right atrium Right atrium and right ventricle Right ventricle and left ventricle 9. What is the function of the sieve tubes in plant stems? Absorption of water and minerals Transport of sugars Growth and secondary thickening Exchange of gases 10. The movement of substances against the concentration gradient with the help of energy is called: Osmosis Diffusion Active transport Photosynthesis Loading … Pages: 1 2 3 4 5
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