Question

Give one word for



a.Getting rid of undigested waste from body



b.Movement of food molecules into blood

Answer 1

a. Getting rid of undigested waste from body - Excretion.

b. Movement of food molecules into blood - Absorption.

Excretion:

• Excretion is the process by which the body expels wastes and extra water.
• It is a fundamental process in all living things and one of the basic mechanisms by which the human body keeps homeostasis.
• Additionally, it helps shield the body from harm.
• By-products of metabolism, some of which are hazardous, as well as other useless elements, such as used-up and defunct components, are included in wastes.
• Carbon dioxide from cellular respiration, ammonia and urea from protein catabolism, and uric acid from nucleic acid catabolism are some of the specific wastes that must be expelled from the body.

Absorption:

• The process of absorption is how the blood absorbs the digestive byproducts so that the rest of the body can receive them.
• The mucous membrane allows for the passage of the digested materials into the blood or lymph during absorption.
• Thus, the definition of absorption is the transfer of nutrients into the bloodstream from the gastrointestinal system.

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Answer 2

One word for

a. Getting rid of undigested waste from body - Excretion

b. Movement of food molecules into blood - Absorption or asimilation

Explanation:

a. Getting rid of undigested waste from body

• The one word for getting rid of undigested waste from the body is known as excretion.
• Excretory wastes are the material  that gets expelled out from the body.
• Excretion of food as waste is also known as Defecation.
• The body excretes the  waste products after of food is got digestion through the rectum and anus. This process, called defecation.
• This process involves contraction of rectal muscles.
• They get relaxation of the internal anal sphincter, as well as initial contraction of the skeletal muscle of the external anal sphincter also takes place.

b)Movement of food molecules into the blood called as absorption.

• In the process of absorption which takes place in the small intestine certain reactions takes place.
• In this the digested food gets absorbed in the blood through the villi, which are sac-like structures in the intestine.
• Absorption is the combination of two processes which is supplied to cells with nutrients.
• At first absorption of vitamins, minerals, and other chemicals from food takes place within the gastrointestinal tract.
• Then in the second process of bio assimilation the chemical alteration of substances which are present in the bloodstream is done by the liver or cellular secretions.
• Assimilation  or absorption is the process where the absorbed food gets carried away by the blood This is then used by the cells of the body for their activities.

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