Multiple Choice Questions on Lipids:
1. Lipids mainly include_________
(1) Fats, phospholipids, sterols
(2) Fats, phospholipids, cholesterol
(3) Fats, sex hormones, sterols
(4) Fats, phospholipids, sex hormones, cholesterol
Answer: 1
2. Which of the following is lipid______
(1) fat
(2) Phospholipids
(3) cholesterol
(4) All of these
Answer: 4
3. Which of the following is not a biological function of lipids_________
(1) forming biofilms
(2) Regulate physiological metabolism
(3) store energy
(4) carry genetic information
Answer: 4
4. In the human body, it is not only an important component of cell membranes, but also involved in lipid transport in the blood.
(1) Phospholipids
(2) cholesterol
(3) fat
(4) Vitamin D
Answer: 2
5. Phospholipids are suitable for forming cell membranes because_______
(1) They are hydrophobic
(2) They are hydrophilic
(3) They absorb water quickly
(4) They are both hydrophilic and hydrophobic
Answer: 4
6. The biological function of lipids is________
(1) forming biofilms
(2) Regulate physiological metabolism
(3) store energy
(4) All of these
Answer: 4
7. Out of the following groups of compounds, the group that belongs to lipids is________
(1) Enzymes, insulin, hemoglobin
(2) ribonucleic acid, deoxyribonucleic acid
(3) Glucose, lactate, sex hormones
(4) Cholesterol, sex hormones, vitamin
Answer: 4
8. Which of the following is not a function of lipids in cells
(1) Maintenance of secondary sexual characteristics in higher animals
(2) It is an important substance that constitutes biological membranes such as cell membranes
(3) Reduce body heat loss and maintain a constant body temperature
(4) Catalyze the decomposition of energy substances in the body, which is beneficial for the body to resist cold weather
Answer: 4
9. Lipids have unique biological functions in cells. Among the biological functions of lipids below, the biological functions of phospholipids are_________
1. an important component of biological membranes;
2. they are molecules that store energy;
3. they constitute the protection of the surface of the organism Layer
4. is a good thermal insulator and has a thermal insulation effect.
5. It has biological activity and regulates life activities.
(1) ① ⑤
(2) ⑤
(3) ①
(4) ② ④
Answer: 3
10. The following are statements about lipids, which are correct
(1) Phospholipids are composed of three elements, C, H, and O, and are the main components of the tonoplast membrane
(2) The chemical nature of sex hormones is protein, which plays an important regulatory role in maintaining the reproductive process of organisms
(3) Fat exists only in the fat cells of animals, but not in other parts and plant cells
(4) The fat in penguins reduces heat loss and maintains a constant body temperature
Answer: 4
11. Carbohydrates and lipids are two important organic substances in cells, the related statement is false
(1) Lipids on cell membranes include phospholipids, cholesterol, etc.
(2) Starch, cellulose and glycogen in sugars are all condensed from glucose
(3) The end products of starch and fat hydrolysis are carbon dioxide and water
(4) When sugars and fats of the same quality are completely broken down, sugars consume less oxygen
Answer: 3
12. Which of the following form of lipids are also referred as neutral lipids?
(1) Triacylglycerol
(2) Steroid
(3) Phospholipids
(4) Wax
Answer: 1
13. Which of the following is derived lipids_________
(a) Terpenes
(b) Steroids
(c) Carotenoids
(d) All of the above
Answer: 4
14. Phospholipids are suitable for forming cell membranes because_______
(1) They are hydrophobic
(2) They are hydrophilic
(3) They absorb water quickly
(4) They are both hydrophilic and hydrophobic
Answer: 4
15. What are the diseases associated with lipids?
(1) Gaucher disease
(2) Tay-Sachs disease,
(3) Both
(4) None of these
Answer: 3
16. What happens if my lipids are too high?
(1) An excess amount of blood lipids can cause fat deposits in your artery walls,
(2) increasing your risk for heart disease.
(3) Both
(4) None of these
Answer: 3
17. What foods are rich in lipids?
(1) Commonly consumed oils are canola, corn, olive, peanut, safflower, soy, and sunflower oil.
( Foods rich in oils include salad dressing, olives, avocados, peanut butter, nuts, seeds, and some fish.
(3) Fats are found in animal meat, dairy products, and cocoa butter.
(4) All of these
Answer: 4
18. Which of the following statements are correct about lipids __________
(1) Lipids are energy-rich organic, non-polar molecules.
(2) These organic compounds contain carbon, hydrogen and oxygen atoms that form a framework for the structure and function of living cells.
(3) They are insoluble in water and only soluble in nonpolar solvents as water is a polar molecule.
(4) All of these
Answer: 4
19. What are the health effect of lipids?
(1) lipids act as a source of energy,
(2) aid in the absorption of fat-soluble vitamins,
(3) insulate your body and provide the essential fatty acids.
(4) All of these
Answer: 4