MCQOPTIONS
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MCQOPTIONS
This section includes 34 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How many classes of steroid hormones are there? |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 5 |
| Answer» E. | |
| 2. |
Which of the following sterol is present in the cell membrane of fungi? |
| A. | Ergosterol |
| B. | Stigmasterol |
| C. | Sitosterol |
| D. | Campesterol |
| Answer» B. Stigmasterol | |
| 3. |
Which of the following phospholipid is considered as a major constituent of nervous tissue? |
| A. | Glycerophospholipid |
| B. | Plasmalogen |
| C. | Inositol |
| D. | Sphingomyelin |
| Answer» E. | |
| 4. |
Which of the following is not a component of a phospholipid? |
| A. | Phosphate |
| B. | Alcohol |
| C. | Glycerol |
| D. | Protein |
| Answer» E. | |
| 5. |
How many types of lipoproteins are there? |
| A. | 6 |
| B. | 2 |
| C. | 5 |
| D. | 8 |
| Answer» D. 8 | |
| 6. |
In the intestine, the dietary fats are hydrolysed by |
| A. | adenylate cyclase |
| B. | triacylglycerol lipase |
| C. | protein kinase |
| D. | pancreatic lipase |
| Answer» B. triacylglycerol lipase | |
| 7. |
Arachidonate has 20 carbon atoms with |
| A. | 2 double bonds |
| B. | 3 double bonds |
| C. | 8 double bonds |
| D. | 4 double bonds |
| Answer» E. | |
| 8. |
What is the major protein constituent of high-density lipoprotein (HDL)? |
| A. | Apolipoprotein C-l |
| B. | Apolipoprotein A-l |
| C. | None of these |
| D. | Apolipoprotein E |
| Answer» C. None of these | |
| 9. |
The number of water molecules consumed by the formation of phosphatidyl serine are |
| A. | 1 |
| B. | 0 |
| C. | 4 |
| D. | 3 |
| Answer» E. | |
| 10. |
Fatty acid synthesis takes place in |
| A. | cell membrane |
| B. | mitochondria |
| C. | endoplasmic reticulum |
| D. | cytosol |
| Answer» E. | |
| 11. |
Chylomicrons are synthesized in |
| A. | liver |
| B. | blood |
| C. | pancreas |
| D. | intestine |
| Answer» E. | |
| 12. |
Palmitate has 16 carbon atoms with |
| A. | 3 double bonds |
| B. | 2 double bonds |
| C. | None of these |
| D. | One double bond |
| Answer» D. One double bond | |
| 13. |
Triacylglycerols are |
| A. | insoluble in water |
| B. | soluble in water |
| C. | partially soluble in water |
| D. | soluble in water at elevated temperature |
| Answer» B. soluble in water | |
| 14. |
Atherosclerosis can cause blood |
| A. | clotting |
| B. | thinning |
| C. | none of these |
| D. | thickening |
| Answer» B. thinning | |
| 15. |
Synthesis of fatty acid takes place when |
| A. | carbohydrate is plentiful |
| B. | fatty acid are plentiful |
| C. | none of these |
| D. | carbohydrate and energy are plentiful |
| Answer» D. carbohydrate and energy are plentiful | |
| 16. |
Phospholipid contains |
| A. | long water-soluble carbon chains |
| B. | hydrophilic heads and hydrophobic tails |
| C. | both ( and ( |
| D. | positively charged functional groups |
| Answer» C. both ( and ( | |
| 17. |
The lowest energy value lipid for human nutrition is |
| A. | olestra |
| B. | olive oil |
| C. | cardiolipih |
| D. | margarine |
| Answer» B. olive oil | |
| 18. |
How many ATPs are formed during complete oxidation of palmitate? |
| A. | 96 |
| B. | 35 |
| C. | 131 |
| D. | 129 |
| Answer» E. | |
| 19. |
The key enzyme in the regulation of fatty acid synthesis is |
| A. | AMP activated proteinkinase |
| B. | acetyl CoA carboxylase |
| C. | none of these |
| D. | protein phosphatase |
| Answer» C. none of these | |
| 20. |
Fatty acids break down of eukaryotes occurs in |
| A. | cell membrane |
| B. | mitochondrial matrix |
| C. | endoplasmic reticulum |
| D. | cytosol |
| Answer» C. endoplasmic reticulum | |
| 21. |
Animals cannot convert fatty acids into glucose because |
| A. | absence of malate synthase |
| B. | acetyl CoA can not be converted to pyruvate |
| C. | absence of a-ketoglutarate dehydrogenase |
| D. | absence of dehydrogenase |
| Answer» C. absence of a-ketoglutarate dehydrogenase | |
| 22. |
HDLs are synthesized in |
| A. | liver |
| B. | blood |
| C. | pancreas |
| D. | intestine |
| Answer» C. pancreas | |
| 23. |
WHICH_OF_THE_FOLLOWING_IS_NOT_A_COMPONENT_OF_A_PHOSPHOLIPID??$ |
| A. | Phosphate |
| B. | Alcohol |
| C. | Glycerol |
| D. | Protein |
| Answer» E. | |
| 24. |
Which of the following sterol is present in the cell membrane of fungi?$ |
| A. | Ergosterol |
| B. | Stigmasterol |
| C. | Sitosterol |
| D. | Campesterol |
| Answer» B. Stigmasterol | |
| 25. |
Which of the following phospholipid is considered as a major constituent of nervous tissue?$ |
| A. | Glycerophospholipid |
| B. | Plasmalogen |
| C. | Inositol |
| D. | Sphingomyelin |
| Answer» E. | |
| 26. |
Identify the lowest density lipoprotein among the following? |
| A. | HDL |
| B. | LDL |
| C. | VLDL |
| D. | Chylomicrons |
| Answer» E. | |
| 27. |
Name the reagent which is used in Saponification? |
| A. | Ammonia |
| B. | Acetic acid |
| C. | NaOH/KOH |
| D. | Butanone |
| Answer» D. Butanone | |
| 28. |
Which of the following form of lipids are also referred as neutral lipids? |
| A. | Triacylglycerol |
| B. | Steroid |
| C. | Phospholipids |
| D. | Wax |
| Answer» B. Steroid | |
| 29. |
The melting point of fatty acids depends upon chain length and _________ |
| A. | The shape of the fatty acids |
| B. | The position of the double bond |
| C. | Charge on the carbon |
| D. | Degree of unsaturation |
| Answer» E. | |
| 30. |
Name the two essential fatty acids? |
| A. | Linoleate and linolenate |
| B. | Oleic and linoleic |
| C. | Lauric and myristic |
| D. | Arachidonic and oleic |
| Answer» B. Oleic and linoleic | |
| 31. |
Which of the following is an example of unsaturated fatty acids? |
| A. | Lauric or Dodecanoic |
| B. | Linoleic or octadecatrienoic |
| C. | Palmitic or hexadecanoic |
| D. | Myristic or tetradecanoic |
| Answer» C. Palmitic or hexadecanoic | |
| 32. |
Find the INCORRECT statement about the biological functions of lipids. |
| A. | Storage form of metabolic fuel |
| B. | Have a protective function in bacteria, plant, and insects |
| C. | The structural component of membranes |
| D. | Exhibit increased catalytic activity |
| Answer» E. | |
| 33. |
Fatty acids are amphipathic by nature. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 34. |
What is the solubility of lipids in water? |
| A. | Soluble |
| B. | Partially soluble |
| C. | Insoluble |
| D. | Partially insoluble |
| Answer» D. Partially insoluble | |