Answer the following questions:
Subject: SCIENCE
1. What are the functions of guard cells?
2. Potato and ginger are both underground parts that store food. Where is the food prepared in these pla
3. A leguminous plant can restore the soils concentration of mineral nutrients, Give some examples of
plants.
4. Why is dodder plant categorized as a parasite?
5. Mosquitoes, leeches, bed bugs and lice suck our blood. Can they be called parasites?
6. A goat eats away all the leaves of a small plant. However in few days new leaves can be seen sprouting
on the plant again. How did the plant survive without leaves?
7. Why is it not necessary for plants to have digestive system?
8. How will the absence of animals on Earth affect the amount of oxygen and carbon dioxide in the ar
9. Write about the various associated glands of digestive system of human beings and their role in diese
10. Sita got her gall bladder removed surgically as she was diagnosed with stones in her gall bladder. After
surgery, she faced some problems in digestion of certain food items when consumed in bulk Canyo
which kind of food would they be and why?
11. What will happen to the stomach if we do not eat a meal?
his food hurriedly so that he can go out and play. Suddenly heartedव्हाट आर द फंक्शन ऑफ
Answers
Answer:
functions of guard cells
Answer:
1.Guard cells help in controlling the opening and closing of stomata for gaseous exchange
2.In both the plants, shoot system and leaves are above ground. They prepare food through photosynthesis and transport it to the underground part for storage.
3.Plants such as gram, pulses and beans are leguminous.
4.Since Dodder doesn't produce its food with sunlight, you may wonder how it gets the nutrients it needs to survive. In this respect, too, Dodder is unlike many other plants: it is a parasite. Parasites that attack animals and people need "hosts" from which they can obtain food; Dodder needs them, too.
5.Yes, these animals/insects are parasites as they harm the hosts while they suck blood.
6.However, in a few days, new leaves could be seen sprouting in the plant again. How did the plant survive without leaves? Answer: ... So, when goat ate away all the leaves of the plant, the plant fulfilled its requirement by the food stored in stem and roots.
7.Plants do not have a digestive system because their need for nourishment is fulfilled through the process of photosynthesis and cellular respiration
8.As animals take in or inhale oxygen and exhale carbon dioxide , so that carbon dioxide is inhaled by the plants and in return they exhale oxygen
9.The salivary glands, liver and gall bladder, and the pancreas aid the processes of ingestion, digestion, and absorption.
10.Bile juice is produced by the liver that is collected and stored in a location named 'gall bladder'. The main role of bile juice is to break fat into small droplets. After this process, it can digest easily. If the gall bladder is removed from human body then it will be difficult to digest fat.
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