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MCQOPTIONS
This section includes 2103 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1601. |
Most of the algae have chlorophyll as the main pigment and additional pigments. The pigment present in brown algae (in addition to chlorophyll) is: |
| A. | Fucoxanthophyll |
| B. | Phycoerythrin |
| C. | Phycocyanin |
| D. | Anthocyanin |
| Answer» B. Phycoerythrin | |
| 1602. |
Diaphragm is a means of contraception. It is fixed ________. |
| A. | Over cervix |
| B. | In the fallopian tube |
| C. | In the uterus |
| D. | None of the option is correct. |
| Answer» B. In the fallopian tube | |
| 1603. |
Primary vascular tissues are produced by the |
| A. | protoderm |
| B. | ground meristem |
| C. | procambium |
| D. | None of the above |
| Answer» D. None of the above | |
| 1604. |
Members of which of the following phyla are commonly known as sea walnuts? |
| A. | Arthropoda |
| B. | Ctenophora |
| C. | Mollusca |
| D. | Platyhelminthes |
| Answer» C. Mollusca | |
| 1605. |
Carbon monoxide is harmful to human beings as it is: |
| A. | Carcinogenic |
| B. | Antagonistic to CO2 |
| C. | With higher affinity for haemoglobin as compared to oxygen |
| D. | Destructive to O3 (Ozone) |
| Answer» D. Destructive to O3 (Ozone) | |
| 1606. |
Persons in asbestos factories are affected by air pollution, the most affected part of their body is the? |
| A. | Lungs |
| B. | Skin |
| C. | Throat |
| D. | Eye |
| Answer» B. Skin | |
| 1607. |
Crossing over occurs in meiosis during |
| A. | Prophase I |
| B. | Prophase II |
| C. | Interphase |
| D. | Interkinesis |
| Answer» B. Prophase II | |
| 1608. |
Flower colours of red, pink, blue and purple come mainly from pigments called _______ |
| A. | Chlorophyll |
| B. | Anthocyanins |
| C. | Lycopene |
| D. | Carotenoids |
| Answer» C. Lycopene | |
| 1609. |
Consider the following functions for plants:A. To give support to the plantB. To provide humusC. To store foodD. To absorb water and mineralsThe functions of roots are |
| A. | C and D only |
| B. | B, C and D |
| C. | A, C and D |
| D. | A and B only |
| Answer» D. A and B only | |
| 1610. |
Arrange the parts of the intestines in the correct order (as passage of food). |
| A. | Duodenum, jejunum, ileum |
| B. | Jejunum, duodenum, ileum |
| C. | Ileum, jejunum, duodenum |
| D. | Jejunum, ileum, duodenum |
| Answer» B. Jejunum, duodenum, ileum | |
| 1611. |
Animals from Class _______ are warm-blooded animals. |
| A. | Aves |
| B. | Pisces |
| C. | Reptilia |
| D. | Amphibia |
| Answer» B. Pisces | |
| 1612. |
Fishes have a _____ chambered heart. |
| A. | Single |
| B. | Three |
| C. | Four |
| D. | Two |
| Answer» E. | |
| 1613. |
From which part of the organ does the digestion of food in the human body starts? |
| A. | Mouth |
| B. | Stomach |
| C. | Small Intestine |
| D. | Large Intestine |
| Answer» B. Stomach | |
| 1614. |
'Fertilizin' is a chemical substance produced from |
| A. | Acrosome |
| B. | Polar bodies |
| C. | Mature eggs |
| D. | Middle part of sperm |
| Answer» D. Middle part of sperm | |
| 1615. |
Human nails are made ofA. PigmentB. ElastinC. AlbuminD. Keratin |
| A. | A |
| B. | D |
| C. | C |
| D. | B |
| Answer» C. C | |
| 1616. |
In majority of the insects the sex determination type is |
| A. | xo type |
| B. | xy type |
| C. | zw type |
| D. | All of these |
| Answer» B. xy type | |
| 1617. |
Hiccups in humans generally occur due to the forceful downward shifting of the: |
| A. | diaphragm |
| B. | trachea |
| C. | lungs |
| D. | larynx |
| Answer» B. trachea | |
| 1618. |
Quinine, the commonly used drug for malaria, is obtained from a plant. What part of the plant yield the drug? |
| A. | Fruits |
| B. | Bark |
| C. | Leaves |
| D. | Root |
| Answer» C. Leaves | |
| 1619. |
Plants that do not have a differentiated plant body belong to the group _______. |
| A. | Pteridophyte |
| B. | Phanerogams |
| C. | Thallophyte |
| D. | Bryophyta |
| Answer» D. Bryophyta | |
| 1620. |
Muscle study is called ________. |
| A. | Mycology |
| B. | Myology |
| C. | Mystology |
| D. | Nephrology |
| Answer» C. Mystology | |
| 1621. |
Daily consumption of aragon oil helps to prevent: |
| A. | Various cancers |
| B. | Cardiovascular diseases |
| C. | Obesity |
| D. | All of the above |
| Answer» E. | |
| 1622. |
______ reproduces by binary fission |
| A. | Amoeba |
| B. | Liverfluke |
| C. | Plasmodium |
| D. | Planaria |
| Answer» B. Liverfluke | |
| 1623. |
Primary or main source of energy in ecosystem is _________. |
| A. | Sunlight |
| B. | Accumulated sugar in plants |
| C. | Free heat in fermentation |
| D. | Free heat during respiration |
| Answer» B. Accumulated sugar in plants | |
| 1624. |
Amarbel (Cuscuta) is an example of: |
| A. | Autotroph |
| B. | Parasite |
| C. | Saprotroph |
| D. | Host |
| Answer» C. Saprotroph | |
| 1625. |
For which of the following elements, the symbol consists of only one letter? |
| A. | Calcium |
| B. | Chlorine |
| C. | Carbon |
| D. | Copper |
| Answer» D. Copper | |
| 1626. |
In the human body which amino acid is converted to Niacin? |
| A. | Tyrosine |
| B. | Valine |
| C. | Tryptophan |
| D. | Phenyl alanine |
| Answer» D. Phenyl alanine | |
| 1627. |
In biological terms, _______ is a relationship between two organisms in which one organism benefits and the other is unaffected. |
| A. | Mutualism |
| B. | Commensalism |
| C. | Amensalism |
| D. | Parasitism |
| Answer» C. Amensalism | |
| 1628. |
Pollen grains are produced by _______ |
| A. | filament |
| B. | stigma |
| C. | anther |
| D. | ovary |
| Answer» D. ovary | |
| 1629. |
In which part of the human ear is amplification of sound done by 3 bones? |
| A. | Outer ear |
| B. | Inner ear |
| C. | Auditory nerve |
| D. | Middle ear |
| Answer» E. | |
| 1630. |
Experiment to prove that synthesis of organic compound formed the basis of life was performed by: |
| A. | Oparin |
| B. | Huxley |
| C. | Miller |
| D. | Heldane |
| Answer» D. Heldane | |
| 1631. |
In humans, fertilization usually takes place in the ________. |
| A. | Uterus |
| B. | Fallopian tube |
| C. | Ovary |
| D. | Vagina |
| Answer» C. Ovary | |
| 1632. |
Jaundice is a disease of the ________. |
| A. | Liver |
| B. | Eye |
| C. | Lung |
| D. | Heart |
| Answer» B. Eye | |
| 1633. |
How many chromosomes are there in human body? |
| A. | 46 |
| B. | 48 |
| C. | 49 |
| D. | 50 |
| Answer» B. 48 | |
| 1634. |
From which O2 is generated in photosynthesis? |
| A. | Sunlight |
| B. | Water and CO2 |
| C. | Water |
| D. | CO2 |
| Answer» D. CO2 | |
| 1635. |
‘Husk’ (Outer Cover) of a coconut is made of which of the following tissues? |
| A. | Parenchyma tissue |
| B. | Sclerenchyma tissue |
| C. | Collenchyma tissue |
| D. | Xylem |
| Answer» C. Collenchyma tissue | |
| 1636. |
Colchicine, which is a mitotic poison can be obtained from |
| A. | Brassicaceae |
| B. | Fabaceae |
| C. | Solanaceae |
| D. | Liliaceae |
| Answer» E. | |
| 1637. |
Identify the correct order (in which they take place) of the process of nutritition in animals. |
| A. | Digestion, Assimilation, Absorption, Ingestion and Egestion |
| B. | Assimilation, Absorption, Digestion, Egestion and Ingestion |
| C. | Ingestion, Digestion, Absorption, Assimilation and Egestion |
| D. | Absorption, Ingestion, Digestion, Absorption and Egestion |
| Answer» D. Absorption, Ingestion, Digestion, Absorption and Egestion | |
| 1638. |
How many lobes are found in human lungs ? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» E. | |
| 1639. |
In which of the following, peristome teeth are mainly found- |
| A. | Liverwort |
| B. | Hornwort |
| C. | Mosses |
| D. | All of these |
| Answer» D. All of these | |
| 1640. |
Growth hormones function: |
| A. | Rarely as growth promoters |
| B. | Sometimes as growth promoters and sometimes as growth inhibitors |
| C. | Always as growth inhibitors |
| D. | Always as growth promoters |
| Answer» C. Always as growth inhibitors | |
| 1641. |
A child receives a tall beautiful plant as a birthday gift from his father with a quiz. The father asked her how she would verify whether this tall plant was the progeny of both the tall parents or one tall and one short parent plant. She could verify this through? |
| A. | cross-pollination |
| B. | self-pollination |
| C. | tissue culture |
| D. | negative propagation |
| Answer» C. tissue culture | |
| 1642. |
Milk is a poor source of |
| A. | calcium |
| B. | protein |
| C. | vitamin C |
| D. | carbohydrate |
| E. | None of the above / More than one of the above |
| Answer» D. carbohydrate | |
| 1643. |
Animals of which phylum have jointed legs? |
| A. | Mollusca |
| B. | Nematoda |
| C. | Arthropoda |
| D. | Echinodermata |
| Answer» D. Echinodermata | |
| 1644. |
Excretion in Herdmania takes place by- |
| A. | By Nephrocytes |
| B. | By nerve gauglion |
| C. | By neural gland |
| D. | By solenocytes |
| Answer» B. By nerve gauglion | |
| 1645. |
Human blood platelets release ______ which helps in clotting of blood.A. ProthrombinB. FibrinC. FructoseD. Sucrose |
| A. | A |
| B. | D |
| C. | B |
| D. | C |
| Answer» B. D | |
| 1646. |
Name the enzyme in the human body that helps break down carbohydrates. |
| A. | Protease |
| B. | Peptidase |
| C. | Amylase |
| D. | Lipase |
| Answer» D. Lipase | |
| 1647. |
How many canine teeth are there in adult human? |
| A. | 2 |
| B. | 8 |
| C. | 6 |
| D. | 4 |
| Answer» E. | |
| 1648. |
Anthrax is caused by: |
| A. | Bacteria |
| B. | Fungus |
| C. | Protozoa |
| D. | Virus |
| Answer» B. Fungus | |
| 1649. |
From the following parts of a flower, find out the odd one. Ovary, Style, Anther, Stigma |
| A. | Stigma |
| B. | Anther |
| C. | Style |
| D. | Ovary |
| Answer» C. Style | |
| 1650. |
From which part of the plant do we get coffee? |
| A. | Roots |
| B. | Leaves |
| C. | Bark |
| D. | Beans |
| Answer» E. | |