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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.
| 1801. |
Hypothalamus functions as a |
| A. | negative feedback organ |
| B. | self-corrective mechanism |
| C. | detector |
| D. | stimuli |
| Answer» D. stimuli | |
| 1802. |
120 to 140 mm of mercury is an adult normal |
| A. | systolic pressure |
| B. | diastolic pressure |
| C. | peristalsis pressure |
| D. | water pressure |
| Answer» B. diastolic pressure | |
| 1803. |
Corrective mechanism of water loss due to sweating includes less |
| A. | ADH secreted |
| B. | water excreted |
| C. | water reabsorbed by kidney tubules |
| D. | water intake |
| Answer» C. water reabsorbed by kidney tubules | |
| 1804. |
Motor end plate is formed |
| A. | at the junction of the two neurons |
| B. | when end branch of an axon touches the Dendron |
| C. | when end branch of an axon touches an effector |
| D. | when synapse is busy in other tasks |
| Answer» D. when synapse is busy in other tasks | |
| 1805. |
An essential element for blood clotting is |
| A. | chloride |
| B. | calcium |
| C. | sulphate |
| D. | phosphate |
| Answer» C. sulphate | |
| 1806. |
Cells with their ling axes at a right angle to cuticle are found in |
| A. | upper epidermis |
| B. | palisade tissues |
| C. | spongy tissues |
| D. | lower epidermis |
| Answer» C. spongy tissues | |
| 1807. |
As a result of vasodilation, the |
| A. | skin receives more blood |
| B. | skin receives less blood |
| C. | more wear and tear of coniferous layer occurs |
| D. | blood pressure increases |
| Answer» B. skin receives less blood | |
| 1808. |
Number of red blood cells produced every second is |
| A. | 10 million |
| B. | 15 million |
| C. | 20 million |
| D. | 25 million |
| Answer» D. 25 million | |
| 1809. |
In Hibiscus and Clitoria, the ovary is |
| A. | inferior |
| B. | superior |
| C. | posterior |
| D. | ventricular |
| Answer» C. posterior | |
| 1810. |
Blood platelets are also known as |
| A. | lymphocytes |
| B. | phagocytes |
| C. | monocytes |
| D. | thrombocytes |
| Answer» E. | |
| 1811. |
Junction between two neurons is known as |
| A. | node of Ranvier |
| B. | loop of Henle' |
| C. | synapse |
| D. | dendrites |
| Answer» D. dendrites | |
| 1812. |
Homeostatic control mechanism begins with the onset of |
| A. | trigger |
| B. | biosensors |
| C. | cillia |
| D. | stimuli |
| Answer» E. | |
| 1813. |
Chloroplast along with water, sunlight and CO₂ develop |
| A. | nutrients |
| B. | organic food |
| C. | sugar |
| D. | cell sap |
| Answer» D. cell sap | |
| 1814. |
Characteristics of electron (e⁻) microscope are |
| A. | magnify the image up to 1000 times |
| B. | produce black and white image |
| C. | artificially colorized |
| D. | to produce monochromic images |
| Answer» B. produce black and white image | |
| 1815. |
Muscles are mostly made up of |
| A. | proteins |
| B. | starch |
| C. | fiber |
| D. | cellulose |
| Answer» C. fiber | |
| 1816. |
A definite shape given to cell is by |
| A. | cell membrane |
| B. | ribosome |
| C. | cell wall |
| D. | nucleus |
| Answer» D. nucleus | |
| 1817. |
Process of isolating various components of cell is called |
| A. | cell division |
| B. | cell fractionation |
| C. | cell elimination |
| D. | cell separation |
| Answer» C. cell elimination | |
| 1818. |
Iron and bile pigments are released on the breakdown of |
| A. | hemoglobin |
| B. | leucocytes |
| C. | platelets |
| D. | antibodies |
| Answer» B. leucocytes | |
| 1819. |
Blood is called blood tissue due to the presence of |
| A. | blood cells only |
| B. | platelets only |
| C. | antibodies |
| D. | blood cells and platelets |
| Answer» E. | |
| 1820. |
Spasmodic contraction of the muscles that increases body temperature includes |
| A. | breathing |
| B. | panting |
| C. | sweating |
| D. | shivering |
| Answer» E. | |
| 1821. |
75 to 90 mm of mercury is an adults normal |
| A. | systolic pressure |
| B. | diastolic pressure |
| C. | peristalsis pressure |
| D. | water pressure |
| Answer» C. peristalsis pressure | |
| 1822. |
Organelles are normally found in |
| A. | Vacuole |
| B. | Cytoplasm |
| C. | Tonoplast |
| D. | Nucleoplasm |
| Answer» C. Tonoplast | |
| 1823. |
From the nephron, the wastes enter into the |
| A. | collecting tubules |
| B. | ureter |
| C. | convoluted tubules |
| D. | medulla |
| Answer» B. ureter | |
| 1824. |
Total cell count of human body is |
| A. | 60, 000 billion cells |
| B. | 6000 billion cells |
| C. | 600, 000 billion cells |
| D. | varies with age |
| Answer» B. 6000 billion cells | |
| 1825. |
Formation of a local blood clot in an artery is called as |
| A. | thrombin |
| B. | thrombosis |
| C. | prothrombin |
| D. | thrombokinase |
| Answer» C. prothrombin | |
| 1826. |
Very few organisms can digest |
| A. | glycogen |
| B. | cellulose |
| C. | galactose |
| D. | stearic acid |
| Answer» C. galactose | |
| 1827. |
In plants, Ovary is inferior in |
| A. | hibiscus |
| B. | clitoria |
| C. | sunflower |
| D. | rose |
| Answer» D. rose | |
| 1828. |
In dogs, mechanisms to loose heat include all but |
| A. | hanging the tongue out |
| B. | heavy panting |
| C. | wet footprints |
| D. | blubber beneath their skin |
| Answer» E. | |
| 1829. |
If the other floral parts arise from the receptacle above the ovary, it is said to be |
| A. | inferior |
| B. | superior |
| C. | posterior |
| D. | lower |
| Answer» B. superior | |
| 1830. |
Cellulose (C₆H₁₀O₅)ₙ can be digested in herbivores through |
| A. | fungi |
| B. | amoeba |
| C. | bacteria |
| D. | pathological traces |
| Answer» D. pathological traces | |
| 1831. |
DNA stands for |
| A. | Dehydrated neuronic acid |
| B. | Deoxyribonucleic acid |
| C. | Detoxifying neutral acids |
| D. | Decarbonucleic Acid |
| Answer» C. Detoxifying neutral acids | |
| 1832. |
Bean shaped nucleus is characteristic of |
| A. | lymphocytes |
| B. | phagocytes |
| C. | monocytes |
| D. | polymorphs |
| Answer» D. polymorphs | |
| 1833. |
Life span of a red blood cell (RBC) is |
| A. | 1 day or less |
| B. | 6 days |
| C. | 60 days |
| D. | 120 days |
| Answer» E. | |
| 1834. |
Upper epidermis is largely composed of |
| A. | palisade tissue |
| B. | mesophyll tissue |
| C. | cuticle |
| D. | spongy tissues |
| Answer» D. spongy tissues | |
| 1835. |
Relatively denser protoplasm is known as |
| A. | Cytoplasm |
| B. | Nucleoplasm |
| C. | Cell sap |
| D. | Mitochondrion |
| Answer» C. Cell sap | |
| 1836. |
Cortex contains cuplike structures known as |
| A. | loop of Henle' |
| B. | Renal capsule |
| C. | Bowman's capsule |
| D. | Glomerulus capsule |
| Answer» D. Glomerulus capsule | |
| 1837. |
More blood flows through the skin in case of |
| A. | vasodilation |
| B. | vasoconstriction |
| C. | vasoregulation |
| D. | vasoinsulation |
| Answer» B. vasoconstriction | |
| 1838. |
Function of palisade layer is to |
| A. | protect the leaf surface |
| B. | drive away the insects by producing strong odors |
| C. | enable absorption of light through chloroplasts |
| D. | become active in light-independent stage of photosynthesis |
| Answer» D. become active in light-independent stage of photosynthesis | |
| 1839. |
Most plant cells lack |
| A. | Vacuoles |
| B. | protoplasm |
| C. | centrioles |
| D. | cell sap |
| Answer» D. cell sap | |
| 1840. |
Pain and touch receptors are found in |
| A. | dermis |
| B. | epidermis |
| C. | hypodermis |
| D. | all of above |
| Answer» B. epidermis | |
| 1841. |
Nerve is formed through collection of |
| A. | neurons |
| B. | nerve fibers |
| C. | spinal cords |
| D. | blood vessels |
| Answer» B. nerve fibers | |
| 1842. |
Blood pressure is highest near the |
| A. | pulmonary veins |
| B. | vena cava |
| C. | aortic arch |
| D. | ventricular diastole |
| Answer» D. ventricular diastole | |
| 1843. |
Organ transplant fails if the |
| A. | recipient is not ready for transplant |
| B. | organ is not functioning properly |
| C. | transplanted organ is perceived as a toxin by the recipients body |
| D. | excess of heparin is found in blood |
| Answer» D. excess of heparin is found in blood | |
| 1844. |
Sol-state of protoplasm is |
| A. | semi-solid state |
| B. | liquid state |
| C. | solid |
| D. | gaseous liquid |
| Answer» C. solid | |
| 1845. |
Small spherical or rod-shaped organelles are called as |
| A. | chromatin |
| B. | centrioles |
| C. | cytoplasm |
| D. | mitochondrion |
| Answer» E. | |
| 1846. |
Erector muscles contract during |
| A. | cold day |
| B. | warm day |
| C. | physical activities |
| D. | when excess sebum is produced |
| Answer» B. warm day | |
| 1847. |
Limited movement is shown by |
| A. | lymphocytes |
| B. | phagocytes |
| C. | monocytes |
| D. | polymorphs |
| Answer» B. phagocytes | |
| 1848. |
If the fatty material is deposited in the inner side of artery, the condition is called as |
| A. | arteriosclerosis |
| B. | atherosclerosis |
| C. | heart attack |
| D. | thrombosis |
| Answer» C. heart attack | |
| 1849. |
Corrective mechanism of water loss does not involve |
| A. | less water reabsorbed by kidney tubules |
| B. | more ADH secreted |
| C. | concentrated urine |
| D. | less urine |
| Answer» B. more ADH secreted | |
| 1850. |
The appearance of Plasma is |
| A. | red in color |
| B. | yellow in color |
| C. | like platelets |
| D. | like leucocytes |
| Answer» C. like platelets | |