{"id":3747,"date":"2016-07-23T23:24:07","date_gmt":"2016-07-23T17:54:07","guid":{"rendered":"http:\/\/physicscatalyst.com\/article\/?p=3747"},"modified":"2022-11-04T12:06:31","modified_gmt":"2022-11-04T06:36:31","slug":"important-questions-class-7-science-nutrition-plants-animals","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/article\/important-questions-class-7-science-nutrition-plants-animals\/","title":{"rendered":"Important questions for Class 7 science Nutrition in plants and Animals"},"content":{"rendered":"

Here are some Important questions for Class 7 science Nutrition in plants and Animals<\/strong><\/p>\n

Nutrition in plants<\/h2>\n

Short Answer type questions<\/strong>
\n1. Where do plants synthesize their food?
\n2. Why are algae green in colour? Where do they grow?
\n3. What are the various components of food?
\n4. Why do organisms need to take food?
\n5. Name the pores through which leaves exchange gases.
\n6. How does the following raw material reach the leaves of a plant for preparing food
\na. Water and minerals
\nb. Carbon-dioxide:
\n7. Explain photosynthesis in brief.\u00a0 Give an equation to represent the process.
\n8. If two similar potted plants A & B are taken such that:
\nPlant A is kept in the dark or a black box for 72 hours (3 days),
\nPlant B is kept in sunlight. Iodine test is conducted with the leaves of both plants.
\nWhich plant leaf tests positive for the test and Why?
\n9. Why is the sun considered as the ultimate source of energy for all things?
\n10. Define the following and give one example of each: a. Autotrophic nutrition b. Heterotrophs
\n11. test a leaf for presence of starch.
\nMULTIPLE CHOICE QUESTIONS:<\/strong>
\n1. Plants take carbon dioxide from air during photosynthesis from
\na. root hair
\nb. leaves
\nc. water
\nd. flowers
\n2. Presence of starch can be tested by
\na. alcohol
\nb. iodine
\nc. water
\nd. hydrochloric acid
\n3. Which part of plant gets CO2 from air during photosynthesis?
\na. root hair
\nb. sepal
\nc. stomata
\nd. leaf vein
\n4. Green plants are also known as
\na. autotrophs
\nb. heterotrophs
\nc. carnivores
\nd. saprophytes
\n5. The green pigment in leaves help to
\na. make food
\nb. absorb water
\nc. absorb sunlight
\nd. take in CO2<\/sub>
\n6. In a cactus plant, the part responsible for photosynthesis is
\na.\u00a0\u00a0 leaf
\nb. thorn
\nc. root
\nd. stem
\n7.\u00a0 Which of these products is not stored as food in plants
\na. protein
\nb. vitamins
\nc. oxalic acid
\nd. oil
\n8. The simplest carbohydrate made as food during photosynthesis is
\na. starch
\nb. sugar
\nc. glucose
\nd. oil
\n9. Cuscuta plant can be categorized as
\na. parasite
\nb. insectivorous
\nc. saprophyte
\nd. host
\n10.\u00a0 The plant that traps and feeds on insects
\na. cuscuta
\nb. china rose
\nc. rose
\nd. pitcher plant
\n11. The leather objects that are kept in hot humid weather for a long time are spoiled due to the growth of
\na. algae
\nb. yeast
\nc. fungi
\nd. moss
\n12. The Rhizobium bacteria lives inside the root nodules of
\na. peas
\nb. beans
\nc. peanuts
\nd. all of the above<\/p>\n

Nutrition in animals<\/h2>\n

Short Answer type questions<\/strong><\/strong><\/p>\n

1.\u00a0 Name the largest gland of the human body.
\n2. Give the function(s) of the following:
\na) Rectum
\nb) Caecum in ruminants
\nc) Pseudopodia
\nd) Large intestine
\ne) Gall Bladder
\n3. Give any two functions of our tongue besides talking.
\n4.\u00a0 What would happen if there are no villi in the walls of small intestine?
\n5.\u00a0 Differentiate between ingestion and egestion.
\n6. Give reasons, why cows are able to digest cellulose and not humans?
\n7. What is the role of pseudopodia in nutrition in amoeba?
\n8. What is mastication?
\n9. What are secreted inside the stomach?
\n10. Describe nutrition in amoeba.<\/p>\n

Related Notes and Material<\/strong><\/p>\n

Nutrition in Plants<\/h3>\n

Notes<\/strong><\/p>\n