1.
Name the process described by each of the follwoing statements.
(a) Intake of food.
(b) Throwing of unwanted, undigested food.
(c) Breaking down of complex food into simple forms.
(d) Absorption of food substances by the tissues.
(e) Building of complex food materials from simple ones.
2.
Does the small intestine help in digestion? How?
3.
What is the role off pancreas in digestion of food?
4.
Are humans ruminants? Justify.
5.
Do wisdom teeth play a role in digestion? If yes, how; if not, why?
6.
Name the four type of teeth in humans.
7.
What crisis would we face if we did not have premolars?
Right answer = brainliest
chp - Nutrition in animal
class 7
Board - CBSE
Answers
Answer:
All living organisms need nutrients to survive. While plants can obtain nutrients from their roots and the energy molecules required for cellular function through the process of photosynthesis, animals obtain their nutrients by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates. Animals must convert these macromolecules into the simple molecules required for maintaining cellular function. The conversion of the food consumed to the nutrients required is a multistep process involving digestion and absorption. During digestion, food particles are broken down to smaller components, which are later absorbed by the body. This happens by both physical means, such as chewing, and by chemical means.
One of the challenges in human nutrition is maintaining a balance between food intake, storage, and energy expenditure. Taking in more food energy than is used in activity leads to storage of the excess in the form of fat deposits. The rise in obesity and the resulting diseases like type 2 diabetes makes understanding the role of diet and nutrition in maintaining good health all the more important.
Answer:
l am sorry l dont know really very sorry
Explanation: