MCQOPTIONS
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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 5351. |
Glycogen occurs in [CPMT 1994] |
| A. | Mitochondria |
| B. | Krab's cycle |
| C. | Cytoplasm |
| D. | None of these |
| Answer» B. Krab's cycle | |
| 5352. |
Who first introduced the term 'mitochondrion' [KCET 1999; Pb. PMT 2004] |
| A. | Kolliker |
| B. | Robert Brown |
| C. | Benda |
| D. | Altman |
| Answer» D. Altman | |
| 5353. |
Mitochondria are the store houses or power house of [KCET 1994; MP PMT 2003] |
| A. | Fats |
| B. | ATP |
| C. | Glucose |
| D. | Glycogen |
| Answer» C. Glucose | |
| 5354. |
Chondriospheres are formed due to |
| A. | Fusion of mitochondria |
| B. | Division of mitochondria |
| C. | DNA replication |
| D. | Transcription |
| Answer» B. Division of mitochondria | |
| 5355. |
Mitochondria arises |
| A. | By growth and division of pre-existing mitochondria |
| B. | From non-mitochondrial membranes |
| C. | From precursors of the cytoplasm |
| D. | None of the above |
| Answer» B. From non-mitochondrial membranes | |
| 5356. |
The site for cellular respiration is [Bihar MDAT 1995; CPMT 2001, 02] |
| A. | Nucleus |
| B. | Ribosome |
| C. | Mitochondria |
| D. | ER |
| Answer» D. ER | |
| 5357. |
Who observed the "mitochondria'' first |
| A. | Kolliker |
| B. | Robert Brown |
| C. | Robert Hooke |
| D. | Altmann |
| Answer» B. Robert Brown | |
| 5358. |
Major role of minor essential elements is to act as: (AIEEE 2004) |
| A. | cofactors of enzymes |
| B. | binders of cell structure |
| C. | constituents of hormones |
| D. | building blocks of important amino acids |
| Answer» B. binders of cell structure | |
| 5359. |
Which of the following are required in minimum amount by human? (DPMT 2006) |
| A. | Nitrogen, oxygen, zinc, fluorine |
| B. | Iron, iodine, manganese, zinc, hydrogen |
| C. | Iron, iodine, carbon, manganese, copper, |
| D. | Iron, iodine, manganese, copper, zinc, fluorine |
| Answer» E. | |
| 5360. |
Assertion [A]: Minerals are not biologically active substances. Reason [R]: Some individuals suffer from anaemia due to the deficiency of iron. |
| A. | Both [A] and [R] are true and [R] is correct explanation of [A] |
| B. | Both [A] and [R] are true but [R] is not correct explanation of [A] |
| C. | [A] is true but [R] is false |
| D. | [A] is false but [R] is true |
| Answer» E. | |
| 5361. |
Micronutrients are: (RPMT 2005; VMMC-Safdarjung 2007) |
| A. | as important as macronutrients but are required in small amount |
| B. | called micro as they play only a minor role in plant nutrition |
| C. | less important than macronutrients |
| D. | none of the above |
| Answer» B. called micro as they play only a minor role in plant nutrition | |
| 5362. |
A nutrient element essential for the formation of microtubules of the mitotic spindle apparatus during cell division is: (Uttarakhand PMT 2006) |
| A. | zinc |
| B. | sulphur |
| C. | calcium |
| D. | phosphorus |
| Answer» D. phosphorus | |
| 5363. |
Which of the following is a microelement? (Orissa JEE 2007) |
| A. | Potassium |
| B. | Manganese |
| C. | Phosphorus |
| D. | Magnesium |
| Answer» C. Phosphorus | |
| 5364. |
Which is not used up in human body? (DPMT 2006; Har. PMT 2006) |
| A. | Zinc |
| B. | Barium |
| C. | Calcium |
| D. | Phosphorus |
| Answer» C. Calcium | |
| 5365. |
Which is not a micronutrient? (Har. PMT 2000) |
| A. | Zn |
| B. | Ca |
| C. | Cu |
| D. | Mo |
| Answer» C. Cu | |
| 5366. |
Which one of the following mineral elements plays an important role in biological nitrogen fixation? (CBSE 2003; AIEEE 2004; RPMT 2007; DUMET 2009) |
| A. | Zinc |
| B. | Copper |
| C. | Manganese |
| D. | Molybdenum |
| Answer» E. | |
| 5367. |
Which of the following is very rich in magnesium? (JIPMER 2002) |
| A. | Egg |
| B. | Meat |
| C. | Milk |
| D. | Soyabean |
| Answer» E. | |
| 5368. |
Zn, Mo, Fe, Cu are: (DPMT 2007) |
| A. | trace elements |
| B. | nonessential elements |
| C. | macronutrients |
| D. | none of these |
| Answer» B. nonessential elements | |
| 5369. |
The set of three elements included fully in micronutrients: (Orissa JEE 2003) |
| A. | Fe, K, Ca |
| B. | Mn, O, P |
| C. | Fe, Zn, Cu |
| D. | Na, Cu, Mg |
| Answer» D. Na, Cu, Mg | |
| 5370. |
Deficiency of copper causes: |
| A. | pellagra |
| B. | influenza |
| C. | xerophthalmia |
| D. | anaemia and damage to CNS |
| Answer» E. | |
| 5371. |
Major population of India is suffering from anaemia due to the deficiency of: (CMC, Vellore 2003) |
| A. | Mg |
| B. | Fe (iron) |
| C. | Vitamin \[{{B}_{1}}\] |
| D. | Vitamin \[{{B}_{12}}\] |
| Answer» C. Vitamin \[{{B}_{1}}\] | |
| 5372. |
Major cause of anaemia is the deficiency of: |
| A. | Ca |
| B. | Fe |
| C. | Na |
| D. | Mg |
| Answer» C. Na | |
| 5373. |
Which one of the following element is essential for the life of animal and not for plants? (BV Pune 2004) |
| A. | Iodine |
| B. | Calcium |
| C. | Potassium |
| D. | Phosphorus |
| Answer» B. Calcium | |
| 5374. |
The essential element for the formation of body protein is: |
| A. | iron |
| B. | sodium |
| C. | nitrogen |
| D. | potassium |
| Answer» D. potassium | |
| 5375. |
The macronutrient which is an essential component of all organic compounds, yet not obtained by plants from soil is: (Karnataka CET 2005) |
| A. | carbon |
| B. | nitrogen |
| C. | phosphorus |
| D. | magnesium |
| Answer» B. nitrogen | |
| 5376. |
Diffusion is a type of |
| A. | Active absorption |
| B. | Passive absorption |
| C. | Irregular absorption |
| D. | Indefinite absorption |
| Answer» C. Irregular absorption | |
| 5377. |
All mineral salts are absorbed in cells as [RPMT 1987, 91, 95] |
| A. | Ions |
| B. | Atoms |
| C. | Molecules |
| D. | All the above |
| Answer» B. Atoms | |
| 5378. |
The theory which suggest that the\[C{{O}_{2}}\]produced in respiration plays an important role in mineral absorption [MP PMT 1988] |
| A. | Contact exchange theory |
| B. | Carbonic acid exchange theory |
| C. | Active absorption theory |
| D. | None the above |
| Answer» C. Active absorption theory | |
| 5379. |
Plants absorb mineral salts from the soil solution through [CPMT 1987] |
| A. | A semipermeable membrane into the cytoplasm |
| B. | Perforation at the apex of root hair cells |
| C. | The cell wall which is semipermeable |
| D. | None of these |
| Answer» B. Perforation at the apex of root hair cells | |
| 5380. |
Ion uptake is called active because [MP PMT 1987, 88] |
| A. | Ions are active |
| B. | Energy is expended |
| C. | Ions move freely |
| D. | Ions move passively |
| Answer» C. Ions move freely | |
| 5381. |
The plant ash is an indication of [CPMT 2004] |
| A. | Organic matter of plant |
| B. | Waste product |
| C. | Mineral salts absorbed by plants |
| D. | None of these |
| Answer» D. None of these | |
| 5382. |
Which of the following will not make minerals more available to plants |
| A. | Increasing the rainfall in a wet forested area |
| B. | Raising the pH of a very acidic soil |
| C. | Tillering a packed-down or water-logged soil |
| D. | Introducing fungi that can form mycorrhiza into a soil that lacks them |
| Answer» B. Raising the pH of a very acidic soil | |
| 5383. |
The transfer of minerals from top soil to sub soil through soil water is called [AIIMS 1990] |
| A. | Transpiration |
| B. | Conduction |
| C. | Percolation |
| D. | Leaching |
| Answer» E. | |
| 5384. |
Active transport from outside to inside of molecules across a membrane requires [CPMT 1986; AMU 1989] |
| A. | Cyclic AMP |
| B. | Acetyl chlorine |
| C. | ATP |
| D. | Phloroglucinol |
| Answer» D. Phloroglucinol | |
| 5385. |
Minerals are absorbed by a plant from the soil by a process [JIPMER 1985] |
| A. | Independent of water absorption |
| B. | Dependent on water absorption |
| C. | Dependent on strength of solutions |
| D. | Dependent on osmosis |
| Answer» B. Dependent on water absorption | |
| 5386. |
If the amount of an ion absorbed by a root hair cell at \[0{}^\circ C\] is 5 gm and at \[20{}^\circ C\] is 20 gm. The amount of this ion absorbed actively should be |
| A. | 25 gm |
| B. | 20 gm |
| C. | 15 gm |
| D. | 5 gm |
| Answer» D. 5 gm | |
| 5387. |
Solutes are absorbed by a plant cell through [RPMT 1987, 88] |
| A. | Osmosis |
| B. | Diffusion |
| C. | Active absorption |
| D. | Passive absorption |
| Answer» D. Passive absorption | |
| 5388. |
Sulphate uptake by plant is through |
| A. | Passive transport |
| B. | Active transport |
| C. | Imbibition |
| D. | Osmosis |
| Answer» C. Imbibition | |
| 5389. |
In the light of carrier concept, the transport of ion across the membrane is |
| A. | Passive process |
| B. | Non-osmotic process |
| C. | Osmotic process |
| D. | Active process |
| Answer» E. | |
| 5390. |
By which method ions are absorbed by plants [RPMT 1992] |
| A. | By difference in DPD |
| B. | By difference in water potential |
| C. | By carriers and pumps |
| D. | By molecular diffusion |
| Answer» C. By carriers and pumps | |
| 5391. |
Nobel prize of 1991 for discovering the single ion channels in cell was awarded to |
| A. | Waston and Hargobind Khorana |
| B. | Erwin Neher and Bert Stakmann |
| C. | Nirenberg and Kornberg |
| D. | Holley and Matthaei |
| Answer» C. Nirenberg and Kornberg | |
| 5392. |
Roots absorb minerals from soil by |
| A. | Diffusion |
| B. | Donnan equilibrium |
| C. | Transfusion |
| D. | Active absorption |
| Answer» E. | |
| 5393. |
Active uptake of minerals by roots mainly depends on the [AIEEE 2003] |
| A. | Availability of oxygen |
| B. | Light |
| C. | Temperature |
| D. | Availability of carbon dioxide |
| Answer» B. Light | |
| 5394. |
Conduction of inorganic materials in plants occur mainly through or Minerals absorbed by roots move to the leaf through [EAMCET 1980; CPMT 1976, 81; CBSE PMT 1988; JIPMER 1988; Manipal 1995] |
| A. | Xylem |
| B. | Phloem |
| C. | Sieve tube |
| D. | None |
| Answer» B. Phloem | |
| 5395. |
If the leaf cell has 8 chromosomes, it is most likely that |
| A. | Zygote will have 4 chromosomes |
| B. | Gametes will have 8 chromosomes |
| C. | Gametes will have 4 chromosomes |
| D. | Zygote will have 16 chromosomes |
| Answer» D. Zygote will have 16 chromosomes | |
| 5396. |
Endothecium layer of anther lobes is present |
| A. | Outside the epidermis |
| B. | Just inside the epidermis |
| C. | In the innermost layer |
| D. | In the middle region |
| Answer» C. In the innermost layer | |
| 5397. |
Pollen grain are formed in [Haryana PMT 2005] |
| A. | Another |
| B. | Stigma |
| C. | Filament |
| D. | Pollen sac |
| Answer» E. | |
| 5398. |
Rarely among angiosperms the pollen grains influenced the endosperm. This is called as [CPMT 2004] |
| A. | Metaxenia |
| B. | Nemec phenomenon |
| C. | Xenia |
| D. | Mesogamy |
| Answer» D. Mesogamy | |
| 5399. |
Ubisch bodies are present in [BHU 2005] |
| A. | Pollen tube |
| B. | Pollen grain |
| C. | Microspore |
| D. | Tapetum |
| Answer» E. | |
| 5400. |
Exine of pollen grains is composed of [MHCET 2003; AIIMS 2003; MP PMT 2005] |
| A. | Pectocellulose |
| B. | Lignocellulose |
| C. | Sporopollenine |
| D. | Pollen kit |
| Answer» D. Pollen kit | |