Function Of Lipids

Question 1

How many calories does each gram of fat provide?

(Energy (ATP) production.

Answer 1

About 9 calories.

Question 2

How do fats function in terms of storage and energy reserves?

(Storage and energy reserves)

Answer 2

Fats are a more efficient form of energy storage than carbohydrates or proteins. So the body stores any excess energy as fat.

Question 3

Which lipids stabilize and allow fluidity in cell membranes?

(Cell membrane structure)

Answer 3

Phospholipids and cholesterol.

Question 4

How do lipids protect the body apart from energy storage?

Answer 4

They provide THERMAL INSULATION in subcutaneous tissue and protection around organs.

Question 5

What are steroid hormones derived from?

(Steroid hormones)

Answer 5

Cholesterol.

(Progesterones, androgens, glucocorticoids, mineralocorticoids and oestrogens).

Question 6

What processes do eicosanoids help with?

(Formation of eicosanoids)

Answer 6

(Signalling molecules involved in) blood coagulation and inflammation.

Question 7

Which fatty acids are important for brain growth and development?

Answer 7

Arachidonic acid (AA) and docosahexaenoic acid (DHA).

Question 8

Which lipid is important in nervous tissue structure?

Answer 8

Sphingomyelin.

Question 9

How do lipids aid in cell functions?

Answer 9

Lipids aid in cell-signaling processes.

Question 10

What role do lipids play in fat-soluble vitamin absorption?

Answer 10

Lipids are required for the absorption of fat-soluble vitamins (A, D, E, K).