Components of Food-III

 HUmans are omnivorous

Monosaccharides are the simplest carbohydrates, consisting of a single sugar unit like glucose or fructose. Disaccharides contain two sugar units, while polysaccharides are complex chains of many units. 'Saccharides' is merely a general term for sugars, not a specific carbohydrate type.

Plants store carbohydrates in the form of starch, primarily in roots, stems, seeds, and tubers. Animals like bats, birds, and whales store carbohydrates as glycogen in their liver and muscles, not as starch. Starch is the plant-specific storage form of carbohydrates.

Proteins are composed of amino acids linked together by peptide bonds. There are 20 standard amino acids that combine in various sequences to form different proteins. Carbohydrates are made of sugar units, fats of fatty acids and glycerol, while minerals are inorganic elements.

Camels store fat in their humps, not water as commonly believed. This fat reserve serves as an energy source, allowing camels to survive extended periods without food. The hump can shrink significantly as the fat metabolized during scarcity. None of the other animals listed have this specific adaptation.

Vegetable oils like olive, sunflower, and canola oil contain primarily unsaturated fats, which are liquid at room temperature. Milk, cheese, and coconut oil are high in saturated fats. Unsaturated fats are generally considered healthier for cardiovascular health.

Vitamin D is synthesized in the skin when exposed to UVB radiation from sunlight, earning it the nickname 'sunshine vitamin'. This process converts a cholesterol derivative into previtamin D3, which then becomes active vitamin D. Other vitamins like B12, A, and C must be obtained from dietary sources.

Minerals are inorganic nutrients that come from the soil and water, unlike organic nutrients like carbohydrates, proteins, and vitamins which contain carbon-hydrogen bonds. Common minerals include calcium, iron, potassium, and sodium. The body cannot synthesize minerals and must obtain them from food.

Photosynthesis converts light energy, carbon dioxide, and water into glucose (a carbohydrate) and oxygen. Carbohydrates are the primary energy storage molecules produced by plants. While plants can later synthesize fats and proteins from carbohydrates, these are not the direct products of photosynthesis.

Lactose is the specific sugar found in milk, making it the 'milk sugar'. It is a disaccharide composed of glucose and galactose. Maltose is malt sugar, sucrose is table sugar, and glucose is a simple sugar found in many foods but not specifically called 'milk sugar'.

Adipose tissue is specialized connective tissue designed to store fat in the form of triglycerides. It serves as the body's primary energy reserve. Roughage (fiber) aids digestion, vitamins are organic compounds needed in small amounts, and minerals are inorganic elements.

Blood clotting is primarily the function of platelets and clotting factors, not fats. Fats provide concentrated energy, support brain development (especially omega-3 fatty acids), and serve as precursors for hormone synthesis. Blood clotting mechanisms involve proteins like fibrinogen, not lipids.

Proteins are called the building blocks of life because they form the structural components of cells and tissues, catalyze biochemical reactions as enzymes, and regulate bodily functions as hormones and antibodies. While carbohydrates and fats are essential, proteins perform the widest variety of life-sustaining functions.

 Orange is a rich source of vitamin C.

The protein casein is present in milk.

Autotrophs synthesise their own food by the process of photosynthesis.

Proteins help in the formation of hair and nails in humans.

Vitamin A is important for good vision.

Glucose is a monosaccharide sugar, while the rest of the options are disachharide sugars. 

Fats act as an insulator and prevent the loss of heat from the animal body.