Class 7 Exam > Class 7 Notes > Science Class 7 > Worksheet: Transportation in Animals and Plants
Transportation in Animals and Plants Class 7 Worksheet Science Chapter 7
Q.1. True/False
(i) Water absorption through roots can be increased by keeping the plants under the fan.
(ii) Transpiration also cools the plant.
(iii) Veins carry blood from the heart to all parts of the body.
(iv) Excretory system of human consists of the heart and blood vessels.
(v) In most animals the blood that circulates in the body distributes food and oxygen to different cells of the body.
(vi) The major excretory product in humans is urea.
(vii) Animals such as sponges and Hydra also possess circulatory system.
Q.2. Fill in the blanks.
(i) The blood from the heart is transported to all parts of the body by the ____.
(ii) Haemoglobin is present in ____ cells.
(iii) Arteries and veins are joined by a network of ____.
(iv) The rhythmic expansion and contraction of the heart is called ____.
(v) The main excretory product in human beings is ____.
(vi) Sweat contains water and ____.
(vii) Kidneys eliminate the waste materials in the liquid form called ____.
(viii) Water reaches great heights in the trees because of suction pull caused by ____.
(ix) In plants, water is transported through ____.
Q.3. What does human sweat contain?
Q.4. Which instrument is used to measure blood pressure?
Q.5. What are veins?
Q.6. How do birds, lizards and snakes excrete their waste?
Q.7. How does sweat help keep you cool?
Q.8. How plant roots absorb water and minerals from the soil?
Q.9. Why animals such as sponges and hydra do not have blood?
Q.10. What are the components of blood?
Q.11. What does the circulatory system mainly consists of?
Q.12. What is called pulse rate?
Q.13. What is the fluid part of blood called?
Q.14. What is the function of phloem?
Q.15. Name the major excretory product in humans.
Q.16. Which blood vessels carry blood from all parts of the body back to the heart?
Q.17. How do aquatic animals like fishes excrete their waste?
Q.18. What is the significance of partition between the chambers of heart?
Q.19. What are the three main types of blood vessels?
Q.20. Why is transport of materials necessary in a plant or in an animal? Explain.
You can find Worksheets Solutions here: Worksheet Solutions: Transportation in Animals and Plants
The document Transportation in Animals and Plants Class 7 Worksheet Science Chapter 7 is a part of the Class 7 Course Science Class 7.
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FAQs on Transportation in Animals and Plants Class 7 Worksheet Science Chapter 7
| 1. What is transportation in animals and plants? |  |
Ans. Transportation in animals and plants refers to the movement of substances such as water, nutrients, gases, and hormones within their bodies. In animals, it is carried out by the circulatory system, while plants use their vascular system composed of xylem and phloem tissues to transport substances.
| 2. How does transportation occur in animals? | |
Ans. Transportation in animals occurs through the circulatory system, which consists of the heart, blood vessels, and blood. The heart pumps oxygenated blood to various parts of the body through arteries, while deoxygenated blood returns to the heart through veins. This allows for the transportation of nutrients, oxygen, waste products, and hormones to different cells and organs.
| 3. What is the role of xylem and phloem in plant transportation? | |
Ans. Xylem and phloem are two types of vascular tissues in plants responsible for transportation. Xylem transports water and minerals from the roots to the leaves through a process called transpiration. Phloem, on the other hand, transports sugars, amino acids, hormones, and other organic molecules from the leaves to the rest of the plant. This movement is known as translocation.
| 4. How do plants transport water from roots to leaves? | |
Ans. Plants transport water from the roots to the leaves through a process called transpiration. Water is absorbed by the roots and travels upward through the xylem vessels due to the cohesive and adhesive properties of water molecules. As water evaporates from the stomata in the leaves, it creates a negative pressure or tension that pulls more water up from the roots, allowing for a continuous flow.
| 5. What are the different modes of transportation in animals? | |
Ans. Animals employ various modes of transportation depending on their body structure and habitat. Some common modes include swimming, flying, walking, crawling, and running. For example, fish use their fins to swim, birds have wings for flying, and mammals have limbs for walking and running. Each mode is adapted to suit the specific needs and characteristics of the animal.
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Nov 22, 2024 Last updated |
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