McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) .
| 651. |
'Lockjaw' is the last phase of which of the following diseases? |
| A. | Diptheria |
| B. | Pneumonia |
| C. | Syphilis |
| D. | Tetanus |
| Answer» D. Tetanus | |
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Explanation: A common first sign of tetanus is muscular stiffness in the jaw (lockjaw), followed by stiffness of the neck, difficulty in swallowing, rigidity of abdominal muscles, and spasms. |
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| 652. |
Mendel's principles of inheritance are based on – |
| A. | Vegetative reproduction |
| B. | Asexual reproduction |
| C. | Sexual reproduction |
| D. | All of the above |
| Answer» C. Sexual reproduction | |
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Explanation: Genes located on different chromosomes will be inherited independently of each other. Mendel observed that, when peaswith more than one trait were crossed, the progeny did not always match the parents. |
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| 653. |
Viruses are made up of – |
| A. | Protein and lipids |
| B. | Nucleic and protein |
| C. | Lipids and carbohydrate |
| D. | Carbohydrate and Nucleic acid |
| Answer» B. Nucleic and protein | |
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Explanation: A virus is made up of a core of genetic material, either DNA or RNA, surrounded by a protective coat called a capsid which is made up of protein. |
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| 654. |
Which one of the following pairs is correctly matched? |
| A. | Tetanus — BCG |
| B. | Tuberculosis — ATS |
| C. | Malaria — Chloroquin |
| D. | Scurvy — Thiamin |
| Answer» C. Malaria — Chloroquin | |
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Explanation: Chloroquine prevents the development of malaria parasites in the blood. Doctors use it to both prevent and treat malaria. |
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| 655. |
A person having AB-group of blood can donate blood to a person having - |
| A. | A-group |
| B. | B-group |
| C. | AB-group |
| D. | O-group |
| Answer» C. AB-group | |
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Explanation: If a person belongs to the blood group AB, he has both A and B antigens on the surface of his red blood cells and no A or B antibodies at all in his blood plasma. So he can donate blood to those having AB blood group; but can receive blood from AB, A, B, and O groups. |
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| 656. |
The contractile proteins in a muscle are |
| A. | Actin and Myosin |
| B. | Actin and Tropomyosin |
| C. | Myosin and Troponin |
| D. | Troponin and Tropomyosin |
| Answer» A. Actin and Myosin | |
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Explanation: Muscle fibers or myofibrils are formed of three types of proteins which are (1) contractile, (2) regulatory, and (3) structural. Contractile proteins are the force generators of muscle contraction. The two contractile proteins in myofibrils are Actin which is part of thin filament and Myosin, which is part of the thick filament. |
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| 657. |
Acute lead poisoning is also known as |
| A. | Itai-itai |
| B. | Plumbism |
| C. | Neuralgia |
| D. | Byssinosis |
| Answer» B. Plumbism | |
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Explanation: Lead poisoning (also known as plumbism or painter's colic) is caused by increased levels of the heavy metal lead in the body. Lead interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, and reproductive and nervous systems. It interferes with the development of the nervous system. |
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| 658. |
The main thinking part of the brain is the . |
| A. | Mid brain |
| B. | Fore brain |
| C. | Hind brain |
| D. | Both A and C |
| Answer» B. Fore brain | |
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Explanation: The brain has three major parts or regions, namely the fore-brain, mid-brain and hind-brain. The forebrain is the main thinking part of the brain. It has regions which receive sensory impulses from various receptors. |
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| 659. |
Consider the following and select the right option. |
| A. | Oncology - study of cancer |
| B. | Dermatology - study of skin diseases |
| C. | Both are right |
| D. | Both are wrong |
| Answer» C. Both are right | |
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Explanation: Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer. |
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| 660. |
Which organ is the alternate term for womb? |
| A. | Uterus |
| B. | Ureter |
| C. | v*gina |
| D. | Vulva |
| Answer» A. Uterus | |
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Explanation: The uterus or womb is a major female hormone-responsive reproductive sex organ of most mammals including humans. It is within the uterus that the fetus develops during gestation, usually developing completely in placental mammals such as humans and partially in marsupials such as kangaroos and opossums. |
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| 661. |
In onion the edible part is – |
| A. | Leaf |
| B. | Root |
| C. | Stem |
| D. | Flower |
| Answer» A. Leaf | |
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Explanation: Edible plant sterns are one part of plants that are eaten by humans. Most plants are made up of roots, stems, leaves, flowers, buds and produce fruits containing seeds. The edible portion in an onion is swollen leaves with a bit of stem. |
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| 662. |
What is a sponge? |
| A. | a fossil |
| B. | a plant |
| C. | an animal |
| D. | a fungus |
| Answer» C. an animal | |
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Explanation: A sponge is any sessile aquatic animal of the phylum Porifera, with a porous bag-like body structure and a rigid or elastic internal skeleton. |
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| 663. |
Types of vertebrate animals which creep and crawl are called – |
| A. | mammalians |
| B. | amphibians |
| C. | mollusks |
| D. | reptilians |
| Answer» D. reptilians | |
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Explanation: The types of vertebrate animals which creep and crawl are called reptilians. |
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| 664. |
The deficiency of Vitamin A causes – |
| A. | Scurvy |
| B. | Night blindness |
| C. | Beri-Beri |
| D. | Dermatitis |
| Answer» B. Night blindness | |
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Explanation: The most common symptom of vitamin A deficiency in young children and pregnant women is an eye condition called xerophthalmia. Xerophthalmia is the inability to see in low light, and it can lead to blindness. |
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| 665. |
Which drug is used to cure Osteoporosis? |
| A. | Risedronate |
| B. | Tramadol |
| C. | Promethazine |
| D. | Levothyroxine |
| Answer» A. Risedronate | |
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Explanation: Risedronate is used by adults to treat a disease that weakens bones (Paget'sdisease). This medication helps to reduce bone pain and may prevent long-term complications from this disease. |
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| 666. |
Which of the following is an anti oxidant? |
| A. | Vitamin-C |
| B. | Vitamin-K |
| C. | Vitamin-B |
| D. | Vitarnin-D |
| Answer» A. Vitamin-C | |
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Explanation: Vitamin B12 contains cobalt. Deficiency of Vitamin B12 causes pernicious anaemia and inflammation of tongue and mouth. Vitamin A. Vitamin C and Vitamin E are anti- oxidants. |
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| 667. |
The red, orange and yellow colours of leaf is due to – |
| A. | Aldehydes |
| B. | Tannis |
| C. | Lignins |
| D. | Carotenold |
| Answer» D. Carotenold | |
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Explanation: The red, orange and yellow colours of leaf are due to carotenoids. |
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| 668. |
Estrogen and progesterone control and stimulate the growth of – |
| A. | pituatary gland |
| B. | thyroid gland |
| C. | mammary gland |
| D. | supra renal gland |
| Answer» C. mammary gland | |
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Explanation: Mammary glands are one of the Character of mammalian. Both estrogen and progesterone control growth of mammary gland. |
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| 669. |
Taxonomy is a science that deals with |
| A. | Morphology |
| B. | Anatomy |
| C. | Classification |
| D. | Economic uses |
| Answer» C. Classification | |
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Explanation: Taxonomy is the academic discipline of defining groups of biological organisms on the basis of shared characteristics and giving names to those groups. Each group is given a rank and groups of a given rank can be aggregated to form a super group of higher rank and thus create a hierarchical classification. |
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| 670. |
The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is |
| A. | cellulose |
| B. | galactose |
| C. | chitin |
| D. | starch |
| Answer» C. chitin | |
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Explanation: All crustaceans have a body covered with a protective shell composed of a horny substance called chiton. The outer skeleton is not continuous but made up of divided sections called somites. |
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| 671. |
A molecule in plants comparable to haemoglobin in animals is – |
| A. | Cytochrome |
| B. | Cellulose |
| C. | Chlorophyll |
| D. | Carotene |
| Answer» C. Chlorophyll | |
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Explanation: Hemoglobin is the, iron- containing oxygen-transport met alloprotein in the red blood cells of all vertebrates. Similarly, Cytochromes are, in general, membrane-bound hemeproteins containing helm, groups and are primarily responsible for the generation of ATP via electron transport. |
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| 672. |
An Antigen is – |
| A. | the result of Antibody |
| B. | the opposite of Antibody |
| C. | the stimulus for Antibody formation |
| D. | the residue of an Antibody |
| Answer» C. the stimulus for Antibody formation | |
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Explanation: Antigens are defined as substances recognized by the body as foreign, causing the body to produce an antibody to react specifically with it. Antibodies are proteins produced by lymphocytes as a result of stimulation by an antigen which can then interact specifically with that particular antigen. |
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| 673. |
Blood does not coagulate inside the body due to the presence of – |
| A. | Plasma |
| B. | Haemoglobin |
| C. | Heparin |
| D. | Fibrin |
| Answer» C. Heparin | |
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Explanation: Heparin is a naturally-occurring anticoagulant produced by basophils and mast cells. Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood. Heparin is present in the walls of blood vessels where it doesn't allow blood to clot. |
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| 674. |
Leech is an ectoparasite on cattle, which is – |
| A. | Carnivorous |
| B. | Omnivorous |
| C. | Sangu1omus |
| D. | Herbivorous |
| Answer» D. Herbivorous | |
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Explanation: A herbivore is an organism anatomically and physiologically adapted to plant material, for example foliage, as the main component of its diet. Cattle are herbivorous animals. |
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| 675. |
Blood pressure may be increased by the excessive secretion of |
| A. | Thyroxine |
| B. | Testosterone |
| C. | Estradiol |
| D. | Estrol |
| Answer» A. Thyroxine | |
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Explanation: With its excess secretion, also known as hyper secretion, thyroxin (T4) causes an increased heart rate, high blood pressure, possible palpitations, and could lead to heart failure. It is related to hyperthyroidism. |
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| 676. |
The Particulate Matter (PM-10) exhaled from the polluted atmosphere is often filtered out during the process of |
| A. | Coughing |
| B. | Sneezing |
| C. | A and B |
| D. | Urination |
| Answer» B. Sneezing | |
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Explanation: PM-10 is a particulate matter having an aerodynamic diameter of less than 10 gym. Particles larger than 10 microns tend to be filtered out in the nose and therefore do not enter the respiratory tract. 926. |
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| 677. |
Which of the following organelles are called the Protein Factories of the cell? |
| A. | Chloroplasts |
| B. | Lysosomes |
| C. | Mitochondria |
| D. | Ribosomes |
| Answer» D. Ribosomes | |
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Explanation: The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs. |
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| 678. |
Which of the following structures present in mammalian skin directly helps in keeping the body warm? |
| A. | Pigmented cells |
| B. | Sweat glands |
| C. | Lymph vessels |
| D. | Blood capillaries |
| Answer» B. Sweat glands | |
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Explanation: In the skin, two types of glands are present. |
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| 679. |
Crude oil is sometimes termed sweet because it is – |
| A. | sweet in taste due to dissolved sugars |
| B. | mildly sweet due to low sulphur content |
| C. | less acidic |
| D. | less alkaline |
| Answer» B. mildly sweet due to low sulphur content | |
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Explanation: Crude oil is sometimes termed sweet amount of hydrogen sulphide and Carbon dioxide. |
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| 680. |
Master copy of genetic information is |
| A. | DNA |
| B. | Nucleus |
| C. | r-RNA |
| D. | m-RNA |
| Answer» A. DNA | |
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Explanation: As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS. |
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| 681. |
In coriander, the useful parts are – |
| A. | roots & leaves |
| B. | leaves & flowers |
| C. | leaves & dried fruits |
| D. | flowers & dried fruits |
| Answer» C. leaves & dried fruits | |
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Explanation: 0 |
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| 682. |
Which of the following enzymes aids in coagulation of blood? |
| A. | Tryptase |
| B. | Pepsin |
| C. | Rennin |
| D. | Amylase |
| Answer» C. Rennin | |
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Explanation: Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood. |
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| 683. |
Bio - diesel is mostly produced by – |
| A. | Myrtaceae |
| B. | Malvaceae |
| C. | Liliaceae |
| D. | Euphorbiaceae |
| Answer» D. Euphorbiaceae | |
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Explanation: Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae. |
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| 684. |
Mushroom cultivation is not useful in – |
| A. | Biogas production |
| B. | Biological control of crop diseases |
| C. | Recycling of agricultural wastes |
| D. | Preventing cancer |
| Answer» B. Biological control of crop diseases | |
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Explanation: 0 |
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| 685. |
The Drone in honey-bee are – |
| A. | Fertile male |
| B. | Fertile female |
| C. | Sterile male |
| D. | Sterile female |
| Answer» A. Fertile male | |
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Explanation: Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ). |
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| 686. |
Blood clotting will not occur in the absence of - |
| A. | Iron |
| B. | Calcium |
| C. | Phosphorus |
| D. | None of the above |
| Answer» B. Calcium | |
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Explanation: Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade. |
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| 687. |
'Antibodies', which protect our body from infections, are which type of compounds? |
| A. | Carbohydrates |
| B. | Fats |
| C. | Proteins |
| D. | Vitamins |
| Answer» C. Proteins | |
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Explanation: Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses. |
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| 688. |
Which one of the following is called the 'digestive bag' in the cell? |
| A. | Golgi body |
| B. | Mitochondrion |
| C. | Ribosome |
| D. | Lysosome |
| Answer» D. Lysosome | |
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Explanation: Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles.They contain powerful digestive enzymes which are capable of breaking down all organic materials. |
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| 689. |
Osteocytes are found in – |
| A. | Bone |
| B. | Blood |
| C. | Cartilage |
| D. | Lymph |
| Answer» A. Bone | |
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Explanation: An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna. |
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| 690. |
Which of the following is known as the graveyard of RBC? |
| A. | Liver |
| B. | Spleen |
| C. | Brain |
| D. | Heart |
| Answer» B. Spleen | |
| 691. |
The largest mixed gland of human body is |
| A. | Thymus |
| B. | Liver |
| C. | Pancreas |
| D. | Spleen |
| Answer» C. Pancreas | |
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Explanation: Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. Theendocrine portion secretes two hormones, insulin and glucagon, into the blood. |
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| 692. |
Which acid is present in the stomach of humans? |
| A. | sulphuric acid |
| B. | hydrochloric acid |
| C. | nitric acid |
| D. | citric acid |
| Answer» B. hydrochloric acid | |
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Explanation: Hydrochloric acid is naturally produced by cells in our bodies to help digest food in the stomach. |
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| 693. |
Study of Crop production is – |
| A. | Entology |
| B. | Ecology |
| C. | Botany |
| D. | Agronomy |
| Answer» D. Agronomy | |
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Explanation: Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops. |
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| 694. |
Reflex actions are controlled by – |
| A. | the Brain |
| B. | the Spinal Chord |
| C. | the Nerves |
| D. | the Cells |
| Answer» B. the Spinal Chord | |
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Explanation: Reflex actions are automatic, rapid and spontaneous and we do not have control over such actions. These are controlled by the spinal cord. They are not controlled by the brain. |
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| 695. |
The floral part that receives pollen grains during pollination is - |
| A. | ovary |
| B. | style |
| C. | stigma |
| D. | ovules |
| Answer» C. stigma | |
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Explanation: The stigma is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. The stigma receives pollen at pollination and it is on the stigma that the pollen grain germinates. The style connects the stigma to the ovary. |
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| 696. |
A warm-blooded animal is – |
| A. | Shark |
| B. | Snake |
| C. | Bat |
| D. | Ascorbic |
| Answer» C. Bat | |
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Explanation: With a few exceptions, all mammals and birds are warm-blooded, and all reptiles, insects, arachnids, amphibians and fish are cold-blooded. Bat is a mammal. Warm- blooded creatures, like mammals and birds, try to keep the inside of their bodies at a constant temperature. They do this by generating their own heat when they are in a cooler environment, and by cooling themselves when they are in a hotter environment. |
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| 697. |
Which of the following is the hardest substance in the human body? |
| A. | Bone |
| B. | Enamel |
| C. | Dentine |
| D. | Nail |
| Answer» B. Enamel | |
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Explanation: Tooth enamel, along with dentin, cementum, and dental pulp is one of the four major tissues that make up the tooth in vertebrates. It is the hardest and most highly mineralized substance in the human body. It has approximately 95% calcium concentration. |
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| 698. |
Which of the following is a coldblooded animal? |
| A. | Pigeon |
| B. | Tortoise |
| C. | Fox |
| D. | Goat |
| Answer» B. Tortoise | |
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Explanation: Tortoise's are cold blooded reptile's and req heat, which they regulate by moving in and of the sun during the day. A tortoise can maintain A higher body temperature in the wild at night by digging into soil which has been heated by the sun during the day. |
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| 699. |
The membrane covering the lungs is a – |
| A. | pleura |
| B. | pericardium |
| C. | peritoneum |
| D. | mesothelium |
| Answer» A. pleura | |
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Explanation: In human anatomy, the pleural cavity is the potential space between the two pleura (visceral and parietal) of the lungs. The pleura is a membrane which folds back onto itself to form a two-layered, membrane structure. The thin space between the two pleural layers is known as the pleural cavity; it normally contains a small amount of pleural fluid. |
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| 700. |
Ascent of sap in plants takes place through – |
| A. | Pith |
| B. | Phloem |
| C. | Cambium |
| D. | Xylem |
| Answer» D. Xylem | |
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Explanation: The ascent of sap in the xylem tissue of plants is the upward movement of water from the root to the crown. Xylem is a complex tissue consisting of living and non-living cells. The conducting cells in xylem are typically non- living and include, in various groups of plants, vessels members and tracheids. |
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