Give reason:
a. Nitrogen can be replenished in the soil by growing leguminous crops.
b. Animals like cows and goats can digest grass but humans can not.
c. Your stomach contains hydrochloric acid, but you don’t experience any burning
sensation.
Answers
Explanation:
a) the leguminous plants have rizobium bacteria at the root nodules
b) Turns out humans just don’t have the required enzyme needed to break down the cellulose in grass. Our digestive systems just aren’t prepared for it.
Cellulose is a complex carbohydrate that makes up most of a plant’s cell walls. It consists of linear chain of several hundred to many thousands of glucose units known as polysaccharides that plants use to build their walls. Cellulose is present in basically all plants, like spinach, kale, and grass. Most of the plants we eat have some nutrients we can digest. But grass is basically all cellulose, which is indigestible for humans.
c)Mucous-producing cells at the neck of the gastric pits create a layer of protective mucous covering the stomach lining. This mucous layer includes bicarbonate ions which act as a chemical barrier against the protons in gastric juice.
Answer:
a) BECAUSE LEGUMINOUS PLANTS OR CROPS CONTAIN SOME BACTERIA LIKE RHIZOBIUM IN THE SOIL NEAR THE ROOT THESE BACTERIA FIXES NITROGEN DURING LIGHTING.
B) BECAUSE THEY HAVE A SPECIAL ORGAN CALLED RUMEN WHICH DIGEST CELLULOSE BUT HUMANS DON'T HAVE THIS SPECIAL ORGAN.
C) BECAUSE THERE PRESENT A GASTRIC JUICE CALLED MUCUS WHICH PROTECT THE INNER LINNG OF THE STOMACH FROM HCL.
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