Tag: metabolism in animals

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Multiple choice bio-chemistry organization of life concept of metabolism metabolism in animals metabolism

It is much easier for a small animal to run uphill than for a large animal, because - ?

  1. small animals have lower $O _2$ requirement

  2. the efficiency of muscles in larger animal is less than in smaller animal

  3. it's easier to carry a small body weight

  4. smaller animals have higher metabolic rate
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
It has been observed that the metabolic rate of an organism is inversely proportional to its body weight, that is smaller animals have a higher metabolic rate. This higher metabolic rate allows them to have higher energy and are quicker in climbing heights as compared to larger animals.

So, the correct answer  is 'smaller animals have higher metabolic rate'.
Multiple choice bio-chemistry organization of life concept of metabolism metabolism in animals metabolism

Choose the correct answers from the alternatives given .
All the biochemical pathways in a cell constitute

  1. Coupling reactions

  2. Endergonic reactions only

  3. Exergonic reactions only

  4. Metabolism
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are various biochemical reactions taking inside a cell. Some of these reactions may result in absorption of energy (called as endergonic reactions) or release of energy (called as exergonic reactions). Often both these types of reactions are coupled, to get the energy to those endergonic reactions, they are paired up with energy-releasing exergonic reactions (known as coupling reactions). Although, there are a wide variety of reactions taking place inside the body apart from these reactions. Metabolism is a term that is used to describe all these biochemical reactions involved in maintaining the living state of the cells and the organism. 

So, the correct option is 'Metabolism'.