Question

Q.1. With the help of a neat diagram show how Amoeba captures its food?
Name the mode of nutrition.
Q.2. Explain how plants exhibit transpiration? Mention different processes
Involved in the movement of water and food.
Q3. How do plants exhibit excretion? Mention different products that are useful for us.
Q.4. Ramesh visited his native village after a long time. He felt sorry for the people of his village.
He wanted to help them by starting a fertilizer factory So that the financial position of
villagers will be better. He got approval
From the concerned department and the financial assistance for the project
When he visited the nearest dispensary in his village, he changed his mind
and decided not to open a factory but to open smallscale industry for the
benefit of the village.
a) What made him to change his mind according to you?
b) Do you think his decision is any way better forthe village?
c) What do you think he must have seen in the dispensary, which made him
to change his mind?
Q.5. What are osmoregulatory organs? Explain how the process of excretion
Takes place in humans.

Answer 1

Ans:-

As this is definitely not a solitary inquiry, I will attempt to answer a large portion of them:-

• 1. Single adaptable cell takes  food by utilizing impermanent finger-like structure of the cell surface which combine over the food molecule framing a food-vacuole. In the food vacuole the mind boggling particles are separated into straightforward one.

• This  process is known as endocytosis or phagocytosis in which pseudopodia is shaped.

• 2. Transpiration is a procedure that includes loss of water fume through the stomata of plants. The loss of water fume from the plant cools the leaf surface when the climate is hot, and water from the stem and roots moves upwards or is 'maneuvered' into the leaves.

• The development of water and minerals happens through Xylem while phloem transports food from the leaves to the remainder of the plant.

• 3. Plants do not have an all around created excretory framework like that in creatures. They don't have exceptional organs for discharge. Along these lines discharge in plants is basic not perplexing like creatures

• CO2, overabundance H2O created during breath and nitrogenous mixes delivered during protein digestion are the major excretory items in plants.

• Plants additionally produce two vaporous waste items for example oxygen during photosynthesis and carbon dioxide during breath.

• They likewise produce some metabolic natural results. These squanders are put away in various structures in various parts.

• The gums, oils, latex, pitches, and so forth are some waste items put away in plant parts like barks, stems, leaves, and so on.

• The oil delivered from orange, eucalyptus, jasmine, latex from the elastic tree, papaya tree, and gums from acacia, are various types of put away waste items.

• 5. The kidneys is the fundamental osmoregulatory organs in well evolved creatures, they capacity to channel blood and keep up the disintegrated particle groupings of body liquids.

• Discharge is the procedure of expulsion of harmful squanders from the body of a living being.

The significant squanders delivered in our body :

• Carbon dioxide and Urea-Carbon dioxide is delivered by the procedure of breath and urea is created by the disintegration of un utilized or squander proteins in the liver.

• There are various organs which expels squander from the body. These are lungs and kidneys. Our lungs discharge carbon dioxide and kidneys urea.