Tag: nutrition in other organisms

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Multiple choice biology what do animals eat? digestion in ruminants nutrition in other organisms busy at work - our internal organs

Humans cannot digest cellulose like cattle do because

  1. They have a smaller stomach.

  2. They do not have cellulose-digesting bacteria in their stomach.

  3. They do not consume cellulose.

  4. They have less digesting capacity than ruminants.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Food is stored in the plants as cellulose. Cellulase is an enzyme synthesized by bacteria in stomach of ruminant which is used to digest cellulose. Humans do not have cellulase and hence they cannot digest cellulose.
So, the correct answer is 'They do not have cellulose-digesting bacteria on their stomach'.
Multiple choice biology what do animals eat? digestion in ruminants nutrition in other organisms busy at work - our internal organs

The cud is brought back to the mouth during digestion in ruminants. This is called as

  1. Ingestion

  2. Regurgitation

  3. Egestion

  4. Absorption
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Ruminants have 4-chambered stomach. Reticulum is a part of ruminant's stomach that allow the animal to regurgitate the cud, to reprocess particulate matter and chew the cud again.
So the correct answer is 'Regurgitation'.
Multiple choice biology what do animals eat? digestion in ruminants nutrition in other organisms busy at work - our internal organs

The digestive system of cows is made up of

  1. Oesophagus

  2. Small and large intestine

  3. 4 chambered stomach

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The digestive system of cow is made up of oesophagus, 4-chambered stomach and small and large intestine. The food is passed through oesophagus from mouth to the stomach. The cow has 4-chambered stomach that digest and process the food and then pass it on the small and large intestine for absorption.
So the correct answer is 'All of the above'.