Physics, asked by vipashu5273, 1 year ago

Q:how do the following organism obtain nutrition?explain.

a.green plants

b.fungi

c.amoeba

Q:why are plants green in colour?explain.

Q:how does amoeba take its food?

Q:how and in what form are the various components of food absorbed?

Q:describe the mechanism of breathing in humans beings.

Q:explain the role of various partsof respiratory system in man.

Q:how is haemoglobin associated with respiration?explain.

Q:name the correct substrates for the following enzymes:

a.trypsin

b.amylase

c.pepsin

d.lipase

Q:what is the significance of emulsification of fats?

Q: describe the features of gaseous exchange that are common to both the mammals and plants leaves.

Q:how is cell respiration similar to the working of petrol engine?

Q:the average length of human adults small intestine is about 6.35 metres.how long does it take for food to travel from one end to the other.(1 cm per minute)

Answers

Answered by Lena23
0

That's a lot of questions mate. Send them one by one.

Answered by shreyansh97
1
Plants absorb nutrients and water through their roots, but photosynthesis — the process by which plants create their fuel — occurs in the leaves. Therefore, plants need to get fluids and nutrients from the ground up through their stems to their parts that are above ground level.

Just as animals, plants also contain vascular tissues (xylem), which transports water and minerals up from the roots to the leaves, and phloem, which transports sugar molecules, amino acids, and hormones both up and down through the plant.

The leaves of plants also contain veins, through which nutrients and hormones travel to reach the cells throughout the leaf. Veins are easy to see some leaves (a maple tree, for instance). In some plants the veins are hard to see, but they’re in there.

Sap is the mix of water and minerals that move through the xylem. Carbohydrates move through the phloem. There are several different “modes of transportation” through the xylem and phloem; their main function is to keep all cells of the plant hydrated and nourished.

Inside the cells of the root, there is a higher concentration of minerals than there is in the soil surrounding the plant. This creates root pressure, which forces water up out of the root through the xylem as more water and minerals are “pulled” into the root from the soil. This force results in guttation, which is the formation of tiny droplets on the ends of leaves or grass early in the morning.

Hope this helps you.
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