Advertisements
Advertisements
प्रश्न
Give Suitable Explanation for the Following :
Why do you shiver and why do your teeth chatter when it is very cold in winter?
Advertisements
उत्तर
In order to maintain the body temperature constant in very cold conditions in winter, heat production is increased by enhanced metabolic rate and increased muscular activity. Shivering and chattering of teeth involves a lot of muscular activity. That is why we shiver and our teeth chatter in winter in order to increase heat production in the body.
APPEARS IN
संबंधित प्रश्न
What are the different ways in which glucose is oxidized to provide energy in various organisms?
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Explain why, a land plant may die if its roots remain waterlogged for a long time.
Describe the process of respiration in the following part of a plant:
Root
Describe the process of respiration in the following part of a plant:
Stem
What is meant by aquatic animals and terrestrial animals?
Which of the following is the correct sequence of air passage during inhalation?
(a) nostrils → larynx → pharynx → trachea → lungs
(b) nasal passage → trachea → pharynx → larynx → alveoli
(c) larynx → nostrils → pharynx → lungs
(d) nostrils → pharynx → larynx → trachea → alevoli
Which of the following is known as the energy currency of the cells in biology?
The two organisms which breath only through their moist skin are:
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
Which chemical compound inside a cell can be termed "Currency of Energy"?
Give suitable explanation for the following :
Why does a person feel breathlessness at higher altitudes?
Why is respiration essential for life?
The major fraction of CO2 released during cellular respiration is transported by the blood to the lung capillaries ______
____________ is the maximum amount of air that the lungs can hold after a maximum forceful inspiration.
What percent of oxygen is transported in a dissolved state by the plasma?
With which of the following haemoglobin combines to form carboxyhaemoglobin?
How does aerobic respiration differ from anaerobic respiration?
