at is the major function of fat? 9. helestr is a component in animal cell membra
ID: 3520425 • Letter: A
Question
at is the major function of fat? 9. helestr is a component in animal cell membranes and a precursor for other molecules, like steroid hormones and vitamin D 10. Differentiate between complete and 1. Explain what can happen when there is an imbalance between the energy we consume in our food and the energy we expend. 1. What is the main function of both male and female reproductive organs? 2. Fill in the blanks. eis where both urine and semen exits, but not at the same time. Meanwhile, the eteis a loose bag of skin that contains two testicles. It regulates the temperature of thea lt should be 3 degrees cooler than body temperature for 3. What is the difference between dartos muscle and cremaster muscle? 4. Identify where sperm is produced and stored, and the route it takes when it is released. enieni S e t5 Describe the following male accessory glands: seminal gland, prostate gland, and bulbo-urethral gland 6. Identify the parts of the male duct system and their roles. Describe semen and its function.Explanation / Answer
8) Fats serve many functions to our body like insulation, messengers, storage of fat soluble vitamins. But, the major function of fats is storage of energy. All the excess triglycerides we consume in our diet are stored as adipose tissues in our body. Now when we require energy and body is insufficient to get the energy from diet, fats are broken down by lipases. The broken fats are utilised by cell's powerhouse- the mitochondria and thus the energy is obtained in form of ATP.
One might think about what our energy balance never becomes negative, will fats keep on accumulating then- the answer to this is that fat tissues secrete leptin. Leptin works on hypothalamus and stimulates the satiety center which is the venteromedial nucleus of hypothalamus- thus limiting food uptake and enhancing fat utilisation.
9) 7-dehydrocholestrol in skin, by action of sunlight is converted to cholecalciferol. It is then transported to liver. In liver the cholecalciferol is converted to 25 hydroxy cholecalciferol. This is then transported to kidney where it is converted to 1,25 dihydroxy cholecalciferol or calcitriol which is the active form of vitamin D.
Thus cholestrol is required for synthesis of active form of vitamin D.
Cholestrol is used for synthesises of pregnenolone. It is further used in synthesis of glucocorticoid, mineralocorticoid and androgens which are all steroid hormones.
Thus cholestrol is used for synthesis of steroid hormones.
Cell membranes contain cholestrol. Thus the correct answer for blank is cholestrol.
10) A complete protien is a protien which has all the essential amino acids. Complete protiens are usually present in animal protien sources like meat, fish, poultry, dairy products and eggs.
Soyabean is a non animal complete protien source.
Incomplete protiens don't have all amino acids. These are usually animal sources. For vegetarians, eating a variety of protiens from different sources is essential to complete the protien requirement of body.
11) An imbalance between energy consumption and energy expenditure can lead to two possible scenerios. First, positive energy balance, wherein the intake exceeds expenditure. And second, negative energy balance, where expenditure is more than intake. During positive energy balance, body accumulates energy substrates like fat and glycogen. If excess storage occurs person may suffer from obesity.
During negative balance, like in starvation, body serves on the stored energy substrates.
Ideally, we must manage intake and expenditure by planned exercise and diet plans in order to lead a healthy life.
Thankyou.
Hope I helped.
Please feel free to ask any doubts in comments section.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.