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.
| 801. |
What is the final pathway followed by all carbon atoms derived from carbohydrates, lipids and proteins when they are oxidised during respiration? |
| A. | The Calvin cycle |
| B. | The Electron transport system |
| C. | The Kreb?s cycle |
| D. | The Ornithine cycle |
| Answer» D. The Ornithine cycle | |
| 802. |
What is degraded by Peroxisomes [RPMT 1997] |
| A. | Carbon dioxide |
| B. | Hydrogen peroxide |
| C. | Litheum oxide |
| D. | Carbon monoxide |
| Answer» C. Litheum oxide | |
| 803. |
\[2({{C}_{51}}{{H}_{98}}{{O}_{6}})+145{{O}_{2}}\to 100C{{O}_{2}}+98{{H}_{2}}O+Energy\]The R.Q. of above reaction is: |
| A. | 1 |
| B. | 0.7 |
| C. | 1.45 |
| D. | 1.62 |
| Answer» C. 1.45 | |
| 804. |
Seventh cranial nerve enters: |
| A. | Jugular ganglion |
| B. | Geniculate ganglion |
| C. | Gasserian ganglion |
| D. | Femoral ganglion |
| Answer» C. Gasserian ganglion | |
| 805. |
Read the assertion and reason carefully: Assertion : Xerophytic leaves may contain stomatal crypts or sunken stomata. Reason : Spongy parenchyma is more in xerophytic leaves. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 806. |
Read the assertion and reason carefully: Assertion : Coconut tree is distributed in coastal areas over a large part of the world. Reason : Coconut fruit can float and get dispersed over thousands of kilometers before losing viability. [AIIMS 2004] |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 807. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Tobacco is a local irritant. Reason : It does not show stimulant behaviour. |
| A. | If both assertion and reason are true and the reason is the correct explanation of the assertion. |
| B. | If both assertion and reason are true but reason is not the correct explanation of the assertion. |
| C. | If assertion is true but reason is false. |
| D. | If the assertion and reason both are false. |
| E. | If assertion is false but reason is true. |
| Answer» D. If the assertion and reason both are false. | |
| 808. |
Assertion : The female cones are same in number as male cones. Reason : Male and female cones appears alternately on the same branch of the Pinus. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» E. If the assertion is false but reason is true | |
| 809. |
Sexual reproduction in Spirogyra can be described as [CPMT 1987; MP PMT 2001] |
| A. | Morphological anisogamy and physiological isogamy |
| B. | Morphological as well as physiological isogamy |
| C. | Morphological as well as physiological anisogamy |
| D. | Morphological isogamy and physiological anisogamy |
| Answer» E. | |
| 810. |
One of the genes present exclusively on the X-chromosome in humans is concerned with [AIIMS 2003] |
| A. | Baldness |
| B. | Red-green colour blindness |
| C. | Facial hair/moustaches in males |
| D. | Night blindness |
| Answer» C. Facial hair/moustaches in males | |
| 811. |
Read the assertion and reason carefully: Assertion : Most common type of ovule is anatropous. Reason : Anatropous ovule is horse ? shoe shaped. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 812. |
The interspersion of various degrees of chlorosis with the normal green colour of the leaf is called |
| A. | Spotting |
| B. | Yellowing |
| C. | Mosaic |
| D. | Rosetting |
| Answer» D. Rosetting | |
| 813. |
A duplicate of nomenclature type is termed by a taxonomist as: |
| A. | Syntype |
| B. | Neotype |
| C. | Paratype |
| D. | Isotype |
| Answer» E. | |
| 814. |
Lignified cells are stained by |
| A. | Saffranine |
| B. | Methyl blue |
| C. | Acetocarmine |
| D. | Light green |
| Answer» B. Methyl blue | |
| 815. |
Cartilage is made up of [Pb. PMT 2000] |
| A. | Collagen |
| B. | Dermin |
| C. | Matrigen |
| D. | None of these |
| Answer» B. Dermin | |
| 816. |
Most studies on human genetics have been made through [MP PMT 1990] |
| A. | Genetic engineering |
| B. | Eugenics |
| C. | Microscopic study of chromosomes |
| D. | Pedigree charts |
| Answer» E. | |
| 817. |
Sex-linked characters are[DPMT 1985; CPMT 1980, 86, 93] |
| A. | Dominant |
| B. | Recessive |
| C. | Lethal |
| D. | Not inherited |
| Answer» C. Lethal | |
| 818. |
Permafrost is the most distinctive feature of: |
| A. | Taiga |
| B. | Temperate grasslands |
| C. | Tundra |
| D. | Pacific northwest |
| Answer» D. Pacific northwest | |
| 819. |
Assertion : Angiosperms are most recent plants. Reason : Angiosperms lack archegonia. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 820. |
Most important character of Brassica campesteris is [AFMC 1992; APMEE 1995; RPMT 2002] |
| A. | False septum |
| B. | Parietal placentation |
| C. | Ebracteate |
| D. | Imbricate aestivation |
| Answer» C. Ebracteate | |
| 821. |
Oldest cultivated organism yeasts was discovered by |
| A. | Aristotle |
| B. | Linnaeus |
| C. | Leeuwenhoeck |
| D. | Theophrastus |
| Answer» D. Theophrastus | |
| 822. |
Sieve tubes have [BHU 1991] |
| A. | Apical and oblique septa |
| B. | Perforated and longitudinal septa |
| C. | Perforated and oblique septa |
| D. | Simple oblique wall |
| Answer» D. Simple oblique wall | |
| 823. |
The process of formation of blood corpuscles is called [AFMC 2005] |
| A. | Haemopoiesis |
| B. | Heamolysis |
| C. | Heamozoin |
| D. | None of these |
| Answer» B. Heamolysis | |
| 824. |
Erythrocyte maturing factor is: (AMU 2005) |
| A. | folic acid |
| B. | vitamin C |
| C. | vitamin\[{{B}_{2}}\] |
| D. | Cyanocobalamin |
| Answer» E. | |
| 825. |
Classification based on sequencing of DNA and chemical nature of protein is: |
| A. | Chemotaxonomy |
| B. | Cytotaxonomy |
| C. | Adansonian taxonomy |
| D. | Karyotaxonomy |
| Answer» B. Cytotaxonomy | |
| 826. |
Which of the following plants have a watery latex |
| A. | Papaya |
| B. | Plantain |
| C. | Opium |
| D. | Ficus |
| Answer» C. Opium | |
| 827. |
Assertion : Ribosomes came to our knowledge after the discovery of electron microscope. Reason : Electron microscope has a high magnification and resolving power. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 828. |
The plant body constituting a holdfast, stipe and frond are seen in: |
| A. | Volvox |
| B. | Chara |
| C. | Laminaria |
| D. | Chlamydomonas |
| Answer» D. Chlamydomonas | |
| 829. |
Radial vascular bundle can be seen in [CPMT 1996; MP PMT 2005] |
| A. | Leaf |
| B. | Dicot root |
| C. | Stem |
| D. | Flower |
| Answer» C. Stem | |
| 830. |
Indian species of Spirogyra in which Prof. Iyengar discovered direct lateral conjugation is |
| A. | Spirogyra sahnii |
| B. | Spirogyra indica |
| C. | Spirogyra jogensis |
| D. | Spirogyra karnalae |
| Answer» D. Spirogyra karnalae | |
| 831. |
Modified stem present in Gladiolus is [Orissa JEE 2004] |
| A. | Bulb |
| B. | Rhizome |
| C. | Corm |
| D. | Bulbil |
| Answer» D. Bulbil | |
| 832. |
Assertion : Cro-magnon man has more intelligence than the man of present time. Reason : He is regarded as most recent ancestor of today's man. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 833. |
Thorns, spines and prickles are |
| A. | Organs of defence |
| B. | Organs of offence |
| C. | Organs of clinging |
| D. | Specialised for gaseous exchange |
| Answer» B. Organs of offence | |
| 834. |
Cyanocobalamin is essential for the maturation of: (JIPMER 2002) |
| A. | RBCs |
| B. | Lymph |
| C. | WBCs |
| D. | Platelets |
| Answer» B. Lymph | |
| 835. |
Synthesis of Vitamin A in the body takes place in: |
| A. | liver |
| B. | blood |
| C. | retina |
| D. | pancreas |
| Answer» B. blood | |
| 836. |
Leaves fall from the branches on account of [DPMT 1991] |
| A. | Completing their duration of life |
| B. | Formation of abscission layer external to cork |
| C. | Shortening of day time |
| D. | Fall in atmospheric temperature |
| Answer» C. Shortening of day time | |
| 837. |
When the count of W.B.C. falls below the optimum number in blood, it is called [Orissa JEE 2005] |
| A. | Leukopenia |
| B. | Leukemia |
| C. | Anaemia |
| D. | All of the above |
| Answer» B. Leukemia | |
| 838. |
Rainfall is absent but precipitation occurs in: |
| A. | Arctic desert |
| B. | Tropical desert |
| C. | Chaparral |
| D. | Savannah |
| Answer» B. Tropical desert | |
| 839. |
Assertion : Zygospore of Ulothrix forms meiozoospores and meioaplanospores. Reason : Both are motile. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 840. |
PGA as the first \[C{{O}_{2}}\] fixation product was discovered in photosynthesis of: |
| A. | Bryophyte |
| B. | Gymnosperm |
| C. | Angiosperm |
| D. | Alga |
| Answer» E. | |
| 841. |
Function of suspensor of embryo is: |
| A. | Absorption of nourishment. |
| B. | Push the embryo into nutritive endosperm region. |
| C. | Formation of secondary embryos. |
| D. | All of the above |
| Answer» C. Formation of secondary embryos. | |
| 842. |
Determination of sex of a child depends upon [CPMT 1980] |
| A. | Nature of sperm |
| B. | Nature of egg |
| C. | Health of father |
| D. | Age of mother |
| Answer» B. Nature of egg | |
| 843. |
Actinostele is a modification of |
| A. | Siphonostele |
| B. | Dictyostele |
| C. | Protostele |
| D. | Solenostele |
| Answer» D. Solenostele | |
| 844. |
Loranthus is a [DPMT 1987] |
| A. | Total stem parasite |
| B. | Partial stem parasite |
| C. | Total root parasite |
| D. | Partial root parasite |
| Answer» C. Total root parasite | |
| 845. |
A negative effect of transpiration is: |
| A. | Development of water stress. |
| B. | Increase in mineral absorption. |
| C. | Maintenance of leaf temperature. |
| D. | Causing cooling. |
| Answer» B. Increase in mineral absorption. | |
| 846. |
Which of the following element is a component of ferredoxin? |
| A. | Copper |
| B. | Manganese |
| C. | Zinc |
| D. | Iron |
| Answer» E. | |
| 847. |
Savannahs are: |
| A. | Tropical rain forests |
| B. | Desert scrubs |
| C. | Grassland with scattered trees |
| D. | Dense forests with closed canopy |
| Answer» D. Dense forests with closed canopy | |
| 848. |
Which is employed for artificial ripening of banana fruits? |
| A. | Auxin |
| B. | Coumarin |
| C. | Ethylene |
| D. | Cytokinin |
| Answer» D. Cytokinin | |
| 849. |
What is a clone? |
| A. | A heterozygote produced by sexual means. |
| B. | A homozygote produced by asexual means. |
| C. | A heterozygote produced by asexual means. |
| D. | A homozygote produced by sexual means. |
| Answer» C. A heterozygote produced by asexual means. | |
| 850. |
Doctor's son [CPMT 1972] |
| A. | Will always be a doctor |
| B. | Will never be a doctor |
| C. | Can be a doctor |
| D. | Will not be a doctor at all |
| Answer» D. Will not be a doctor at all | |