Lipids, Fats, and Biochemistry

Proteins are polymers made up of amino acid monomers linked by peptide bonds. There are 20 standard amino acids that combine in various sequences to form different proteins. Lipids, fatty acids are different biomolecules, and "Proteins" as an option is circular reasoning.

Despite its name, banana oil (isoamyl acetate) is a synthetic ester produced from petroleum-derived amyl alcohol and acetic acid. It smells like bananas but contains no actual banana.

The correct spelling is 'Cholesterol' with 'Ch' at the beginning and 'ol' at the end. Option C is correct. Option A incorrectly uses 'C' instead of 'Ch'. Option B incorrectly uses 'rol' instead of 'rol'. Option D incorrectly starts with 'Kh' which is not part of the spelling.

Proteins are present in every part of your body - muscles, organs, skin, hair, enzymes, hormones, and even bone matrix. They are structural components and functional molecules. Fat is stored in adipose tissue, starch comes from plants, and sugar is mainly in blood - they aren't everywhere.

Chicken eggs contain cholesterol in the yolk, which is a waxy, fat-like substance. While eggs also contain fats and proteins, cholesterol is specifically concentrated in the yolk and is a key nutritional component often discussed.

Glucose is a simple sugar that provides the quickest source of energy to the body as it doesn't need to be broken down further. It enters the bloodstream rapidly and is readily absorbed by cells. While carbohydrates and fats provide energy, they require more complex metabolic processes. Lipids are another term for fats.

Hair is primarily made up of a protein called keratin, which is a fibrous structural protein. Keratin provides strength, rigidity, and protection to hair strands. The hair shaft is composed almost entirely of dead keratinized cells. Fats and lipids are not structural components of hair, and fructose is a sugar.

Nails are primarily composed of keratin, a tough protective protein produced by living cells in the nail matrix. As these cells grow outward, they die and become compressed, forming the hard nail plate we see. The keratin structure makes nails rigid yet slightly flexible.

Keratin is a fibrous structural protein that is the main component of surface skin cells (the stratum corneum of the epidermis), as well as hair and nails. It provides strength and protection to the skin. Albumen is egg white protein, trans-fatty acids are unhealthy lipids associated with processed foods, neither of which are skin cell components.

Hormones are signaling molecules produced in small quantities by organisms, not classified as organic matter in the context of soil composition. Organic matter typically refers to bulk materials like crude proteins, carbohydrates, and vitamins that contribute to soil organic content and nutrient cycling.

Lipids are organic compounds that include fats, oils, waxes, and certain vitamins. The term 'fats' is the most common everyday name for lipids in food and nutrition contexts. Salts are ionic compounds, germs are microorganisms, and 'Norcotics' is a misspelling of narcotics (drugs).

RER looks rough under a microscope because of the presence of ribosomes.

The respiratory quotient for fats such as tripalmitin is 0.7.

Fats are absorbed through lymph in the lacteals present in the intestinal villi.