CBSE Class VI Science. Chapter -7
GETTING TO KNOW PLANTS
Keywords-
Climbers
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A plant or person or animal that climbs.
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एक पौधा या व्यक्ति या जानवर जो चढ़ता है ।
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Conduct
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Action or manner of managing an activity.
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किसी गतिविधि के प्रबंधन की क्रिया या तरीका ।
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Creepers
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Any plant that grows along the ground, around another plant, or up to
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लता. ।
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Fibrous roots.
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Plants roots having no main roots, that is all roots seem similar and thin are called Fibrous roots.
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पौधों की जड़ें मुख्य जड़ें नहीं होतीं, जो कि सभी जड़ें समान होती हैं और पतली को रेशेदार जड़ें कहा जाता है।
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Herbs
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Plants with green and tender stems, short and no branches, or any seed-bearing plant that does not have a woody stem and dies down to the ground after flowering.
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जड़ी बूटी।
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Lamina
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The broad, green part of the leaf
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पत्ती का चौड़ा, हरा हिस्सा।
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Lateral roots
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The smaller thin roots attached with the main root or top roots of plants
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पार्श्व जड़ों / पौधों की मुख्य जड़ों या शीर्ष जड़ों से जुड़ी छोटी पतली जड़ें।
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Midrib
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The thick Prominent Line in the middle of the plant’s leaves.
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पौधे की पत्तियों के बीच में प्रमुख रेखा।
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Ovule
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A small or immature ovum inside the ovary of the pistil of flowers
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बीजांड।
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Parallel Venation
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The arrangement of veins in parallel in a leaf
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पत्ती में समानांतर रूप से नसों की व्यवस्था।
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Petal
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Flowers blade, each of the segments of the Corolla of a flower
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पंखड़ी, एक फूल के दलपुंज के प्रत्येक खंड।
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Petiole
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Part of the leaf by which leaf is joined to the stem of the plant or leafstalks
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पत्ती का वह भाग जिससे पत्ती पौधे के तने से जुड़ती है।
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Photosynthesis
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The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
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वह प्रक्रिया जिसके द्वारा हरे पौधे और कुछ अन्य जीव सूर्य के प्रकाश का उपयोग कार्बन डाइऑक्साइड और पानी से खाद्य पदार्थों को संश्लेषित करने के लिए करते हैं। पौधों में प्रकाश संश्लेषण में आम तौर पर हरे रंग का वर्णक क्लोरोफिल शामिल होता है और ऑक्सीजन को बायप्रोडक्ट के रूप में उत्पन्न करता है।
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Pistil
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The innermost parts of the flower
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फूल के अंतरतम भाग।
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Reticulate Venation
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The arrangement or design of leaf veins is net- Like on both sides of the midrib
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पत्ती शिराओं का डिजाइन शुद्ध है- जैसे।
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Sepal
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Each of the parts of the calyx of a flower
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एक फूल के कैलीक्स के प्रत्येक भाग।
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Shrubs
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A woody plant that is smaller than a tree and has several main stems arising at or near the ground.
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एक लकड़ी का पौधा जो पेड़ से छोटा होता है और जमीन पर या उसके आस-पास कई मुख्य तने होते हैं।
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Taproot
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A straight tapering root growing vertically downward and forming the center from which subsidiary rootlets spring.
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एक सीधी टेपिंग रूट खड़ी होकर नीचे की ओर बढ़ती है और जिससे सहायक रूटलेट्स स्प्रिंग बनता है।
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Transpiration
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Is a process through which plants release a lot of water in the form of vapor into the air
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एक ऐसी प्रक्रिया है जिसके माध्यम से पौधे हवा में वाष्प के रूप में बहुत सारा पानी छोड़ते हैं।
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Trees
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Plants that are very tall and having hard and thick stem has branches in the upper parts.
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पौधे जो बहुत लंबे होते हैं और सख्त होते हैं और मोटे तने की ऊपरी भागों में शाखाएँ होती हैं।
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Veins
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A vein is a vascular structure in a leaf that provides support for the leaf and transports both water and food.
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एक पत्ती में नस एक संवहनी संरचना होती है जो पत्ती के लिए समर्थन प्रदान करती है और पानी और भोजन दोनों को स्थानांतरित करती है।
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Exercises
1. Correct the following statements and rewrite them in your notebook.
(a) Stem absorbs water and minerals from the soil.
Ans: Roots absorb water and minerals from the soil.
(b) Leaves hold the plants' uprights
Ans: Stemhold the plants' uprights
(c) Roots conduct water to the Leaves.
Ans: Stem conduct water to the Leaves.
(d)The numbers of petals and stamens in a flower are always equal.
Ans: The numbers of petals and stamens in a flower is always not equal.
(e) If the sepals of a flower are joined together, its petals are joined together.
Ans: If the sepals of a flower are joined together, its petals are not necessarily joined together.
(d) : If the petals of a flower are joined together, then the pistil is joined to the petal.
Ans: If the petals of a flower are joined together, then the pistil may or may not be joined to the petal.
2. Draw (a) a leaf, (b) a taproot and (c) a flower you have studied for Table7.3.
Ans:
(a) a leaf
(b) a taproot
(c) a flower
3. Can you find a plant in your house or in your neighborhood, which has a long but weak stem? Write its name. In which category will you place it?
Ans: Yes, there are many plants that have a long but weak stem in our neighborhood. Among them, a bean plant is one such plant. It comes under the category of climber.
4 What is the function of a stem?
Ans: The main functions of stem are to conducts water and minerals from roots to the leaves and other parts of the plants, also supplied food from leaves to other parts of the plant.
5. Which of the following leaves have the reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), China rose.
Ans: Leaves having reticulate venation are Tulsi, coriander, China rose.
6.If a plant has a fibrous root. What type of venation do its leaves have?
Ans: Parallel venation.
7. If a plant has leaves with reticulate venation. What kinds of roots will it have?
Ans: Taproot.
8. Is it possible for you to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper?
Ans: Yes, if the leaf shows reticulate venation than the plant has a taproot and if the leaf shows parallel venation than the plant has fibrous root.
9. What are the parts of a flower?
Ans: The parts of a flower are mainly sepals, petals, stamens, and pistil.
10. From the following plants, which of them have flowers?
Grass, maize, wheat , chilli , tomato , tulsi, peepal , shisham , banyan , mango ,jamun , guava, pomegranate , papaya, banana , lemon , sugarcane , potato, groundnut .
Ans: Here all plants have flowered.
Flower’s Name
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Whether seen
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Have Flower
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Grass
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seen
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Yes
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Maize
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seen
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Yes
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Wheat
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seen
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Yes
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Chilli
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seen
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Yes
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Tomato
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seen
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Yes
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Tulsi
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seen
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Yes
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Peepal
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seen
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Yes
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Shisham
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seen
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Yes
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Banyan
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seen
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Yes
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mango
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seen
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Yes
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Jamun
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seen
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Yes
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guava
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seen
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Yes
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pomegranate
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seen
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Yes
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papaya
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seen
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Yes
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banana
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seen
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Yes
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lemon
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seen
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Yes
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sugarcane
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seen
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Yes
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potato
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seen
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Yes
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groundnut
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seen
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Yes
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11. Name the part of the plant which produces food. Name the process.
Ans: The part leaf of a plant produces the food. The process by which green leaves make the food of a plant is called Photosynthesis.
12. In which part of a flower, you will find the ovary?
Ans: In the Pistil of ( a plant) flower.
13. Name two plants in which one has joined sepals and the other has separate sepals.
Ans: Name of plant having joined sepals in flower is Datura.
The name of the plant having separate sepals in flower is Rose.
