{"id":22137,"date":"2022-06-04T06:00:42","date_gmt":"2022-06-04T00:30:42","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=22137"},"modified":"2023-01-25T11:05:36","modified_gmt":"2023-01-25T05:35:36","slug":"selina-concise-biology-class-6-icse-solutions-the-leaf","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/selina-concise-biology-class-6-icse-solutions-the-leaf\/","title":{"rendered":"Selina Concise Biology Class 6 ICSE Solutions – The Leaf"},"content":{"rendered":"
ICSE Solutions<\/a>Selina ICSE Solutions<\/a>ML Aggarwal Solutions<\/a><\/p>\n APlusTopper.com provides step by step solutions for Selina Concise ICSE Solutions for Class 6 Biology. You can download the Selina Concise Biology ICSE Solutions for Class 6 with Free PDF download option. Selina Publishers Concise Biology for Class 6 ICSE Solutions all questions are solved and explained by expert teachers as per ICSE board guidelines.<\/p>\n Selina Class 6 Biology ICSE Solutions<\/a>Chemistry<\/a>Physics<\/a>Maths<\/a>Geography<\/a>History & Civics<\/a><\/p>\n Selina Concise ICSE Solutions for Class 6 Biology Chapter 1 The Leaf<\/strong><\/p>\n Synopsis:<\/p>\n Review Questions<\/strong><\/span><\/p>\n 1. Tick (\u2713) the appropriate answer: (ii) Which one of the following is not an insectivorous plant\u2014<\/strong> (iii) This leaf shows parallel venation:<\/strong> (iv) The point on the stem from where the leaf arises is:<\/strong> (v) Which one of the following is essential for photosynthesis:<\/strong> Question 2. Question 3. Fibrous root<\/strong><\/p>\n (ii) Simple Leaf and compound leaf<\/strong> Compound Leaf (iii) Parallel venation and reticulate venation<\/strong> Reticulate Venation<\/strong><\/p>\n Question 4<\/span><\/strong>. Question 5. Question 6. Question 7. Question 8. Question 9.<\/span><\/strong> Question 10. Question 11. Question 12. Question 13. Question 14.<\/span><\/strong> (ii) Parallel venation and reticular venation.<\/strong><\/p>\n Question 15.<\/span><\/strong> Question 16.<\/span><\/strong> Question 17. Question 18. Answer :<\/strong><\/span> Question 19.<\/span><\/strong> Clues down:<\/strong><\/p>\n Selina Concise Biology Class 6 ICSE Solutions – The Leaf ICSE SolutionsSelina ICSE SolutionsML Aggarwal Solutions APlusTopper.com provides step by step solutions for Selina Concise ICSE Solutions for Class 6 Biology. You can download the Selina Concise Biology ICSE Solutions for Class 6 with Free PDF download option. Selina Publishers Concise Biology for Class 6 … Read more<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[3034],"tags":[],"yoast_head":"\n\n
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\nExamples of unicellular organisms:\u00a0<\/strong>Amoeba, Paramecium etc<\/li>\n
\n<\/strong><\/p>\n\n
\n
\n
\n<\/strong><\/li>\n<\/ul>\n
\n<\/strong>
\n(i) Identify the plant which has compound leaves:<\/strong>
\n(a) Banana
\n(b) Banyan
\n(c) Mango
\n(d) Rose<\/strong><\/p>\n
\n(a) Pitcher plant
\n(b) Venus flytrap
\n(c) Bladderwort
\n(d) Cactus<\/strong><\/p>\n
\n(a) Banana<\/strong>
\n(b) Mango
\n(c) Banyan
\n(d) Guava<\/p>\n
\n(a) Petiole
\n(b) Lamina
\n(c) Node<\/strong>
\n(d) Trunk<\/p>\n
\n(a) Carbon dioxide<\/strong>
\n(b) Nitrogen
\n(c) Oxygen
\n(d) Soil<\/p>\n
\n<\/span>Name the following:
\nAnswer :<\/span><\/strong><\/p>\n\n
\n<\/strong><\/li>\n
\n<\/span>Differentiate between the following:<\/strong>
\n(i) Tap root and Fibrous root
\nAnswer :<\/span>
\n<\/strong>Tap root<\/strong><\/p>\n\n
\n
\n<\/li>\n<\/ol>\n
\nAnswer :<\/strong><\/span>
\nSimple Leaf<\/strong><\/p>\n\n
\n<\/strong><\/p>\n\n
\nAnswer :<\/strong><\/span>
\nParallel Venation<\/strong><\/p>\n\n
\n
\n<\/span><\/strong>What are the four functions of the roots ?
\nAnswer :<\/strong><\/span>
\nThe root serves the following functions :
\n<\/strong><\/p>\n\n
\n<\/span>Mention the functions of the following :<\/strong>
\n(i) Spines
\n(ii) Tendril
\n(iii) Scale leaves
\nAnswer :<\/strong><\/span>
\n(i) Spines\u2014<\/strong>The leaves may be modified to form spines to reduce water loss by transpiration in desert plants.
\n(ii) Tendril \u2014<\/strong> The stem may occur in the form of their thread – like leafless branch called tendril. It has the ten-dency to coil around any object and help the plant to climb it
\n(iii) Scale leaves \u2014<\/strong> Scale leaves are present in some plants like onion and ginger. They are thin and dry or thick and fleshy and their function is to protect buds.<\/p>\n
\n<\/span><\/strong>Define venation. What are the different types of ve-nation found in the leaves ?
\nAnswer :<\/strong><\/span>
\nVenation:<\/strong> Arrangement of pattern of veins in a lanuina is called venation.
\nIt is mainly of two types :<\/strong><\/p>\n\n
\nExample:<\/strong> mango, guava.<\/li>\n
\nExample:<\/strong> Banana, grass, wheat<\/li>\n<\/ol>\n
\n<\/span><\/strong>Describe the modifications of leaf in any one insec-tivorous plant.
\nAnswer :<\/strong><\/span>
\nModification of leaves in Venus flytrap (an insectivorous plant)
\nThe leaves of Venus flytrap have long pointed hair. It is divided into two parts having midrib in between like a hinge. When an insect visits the leaf, it closes its two parts and traps the insect. The insect is then digested by secreting digestive juices.<\/p>\n
\n<\/span><\/strong>Write the two main functions of leaves.
\nAnswer :<\/strong><\/span>
\nThe two main functions of leaves are –
\n<\/strong><\/p>\n\n
\nWhat is the modification seen in the Bryophyllum. Explain.
\nAnswer :<\/strong><\/span><\/p>\n\n
\n<\/span><\/strong>Define:
\n(i) Photosynthesis
\n(ii) Tranpiration
\nAnswer :<\/strong><\/span>
\n(i) Photosynthesis \u2014<\/strong> The process by which plant leaf prepares or synthesises food from water and carbon dioxide in the presence of chlorophyll and sunlight is called photosynthesis.
\n(ii) Tranpiration \u2014<\/strong> This is the process by which there is a loss of water in the form of vapour by evaporation from the surface of leaves. It has cooling effect, it causes suction force to make roots absorb more water with mineral ions.<\/p>\n
\n<\/span><\/strong>Name the wide flat portion of the leaf
\nAnswer :<\/strong><\/span>
\nThe green, flat and broad part of the leaf is called \u2018lamina\u2019 or \u2018leaf blade\u2019.<\/p>\n
\n<\/span><\/strong>What purpose is served by the spines horned on the leaves of cactus.
\nAnswer :<\/strong><\/span>
\nLeaves are modified into spines to reduce water loss, like cactus. In prickly poppy, leaves bear spines on the margin.<\/p>\n
\n<\/span><\/strong>Explain why leaf survival is so important to the plant?
\nAnswer :<\/strong><\/span>
\nBecause they perform two main function of photosynthesis and transpiration.<\/p>\n
\nGive an example of the following and draw generalized diagrams for the same:
\n(i) Simple leaf and compound leaf.
\n(ii) Parallel venation and reticular venation.
\nAnswer :<\/strong><\/span>
\n(i) Simple leaf and compound leaf. <\/strong><\/p>\n\n
\n<\/li>\n<\/ol>\n\n
\nparallel to each other, e.g., banana, grass, maize and wheat leaves (monocot plants).<\/li>\n
\n<\/li>\n<\/ol>\n
\nIn list some of the advantages of transpiration to green plants.
\nAnswer :<\/strong><\/span>
\nIt helps to maintain the concentration of the sap inside the plant body:
\nThe roots continue to absorb water from the soil. If excess water does not evaporate through transpiration, the sap will become dilute, preventing further absorption of water and minerals from the soil.
\nCooling effect:<\/strong> In transpiration, water gets evaporated from the plant. The heat required for evaporation of water is obtained from the plant itself and thus, the plant cools itself when it is hot outside.<\/p>\n
\nWhy do some plants have to trap insects ?
\nAnswer :
\n<\/strong><\/span>Insectivorous plants trap insect because they grow in a soil which is deficient in nitrogen and insects help in fulfilling the nitrogen requirement of plants.<\/p>\n
\n<\/span><\/strong>Explain some of the modifications of leaves found in plants.
\nAnswer :<\/strong><\/span>
\nSometimes, the complete leaf or a part of the leaf is modified to perform a special function.
\nSome of these modifications include:<\/strong><\/p>\n\n
\n<\/span><\/strong>What is a tendril ? Explain its use to the plant.
\n<\/p>\n
\nA tendril is a specialized stem, leave or petrole with a thread like shop. They are sensitive to touch. As they touch any object, they coil around it and support the plant to climb up. Example : Sweet pea (upper leaflets are modified into tendrils).<\/p>\n
\nComplete the cross word using the clues given below. Check your performance with the correct solutions given at the end of the chapter.
\n
\nAnswer :<\/strong><\/span>
\nClues across:<\/strong><\/p>\n\n
\n
\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"