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MCQOPTIONS
This section includes 1528 Mcqs, each offering curated multiple-choice questions to sharpen your Grade9 knowledge and support exam preparation. Choose a topic below to get started.
| 751. |
The specific behavior of cells to maintain the shape of sort portions of shrubs and trees is |
| A. | osmosis of cells |
| B. | turgor of cells |
| C. | opening of stomatas |
| D. | diffusion of cells |
| Answer» C. opening of stomatas | |
| 752. |
The cutin coating on the leaves and stems of plants is classified as |
| A. | meristem |
| B. | epidermis |
| C. | cuticle |
| D. | stomata |
| Answer» D. stomata | |
| 753. |
The two scientists who had proposed cell theory in initial forms are |
| A. | Schwann and Schleiden |
| B. | Watson and David |
| C. | Bruce and John |
| D. | Nicolas and Rudolf |
| Answer» B. Watson and David | |
| 754. |
The by-product of photosynthesis is |
| A. | oxygen |
| B. | nitrogen |
| C. | carbon dioxide |
| D. | Sulphur |
| Answer» B. nitrogen | |
| 755. |
The double-ringed nitrogenous base present in ATP molecule is known as |
| A. | adenine |
| B. | ribose |
| C. | phosphate group |
| D. | adenosine |
| Answer» B. ribose | |
| 756. |
The raw materials of photosynthesis are |
| A. | nitrogen and water |
| B. | soil and water |
| C. | oxygen and water |
| D. | carbon dioxide and water |
| Answer» E. | |
| 757. |
The stages of the mechanism of aerobic respiration do not include |
| A. | electron transport chain |
| B. | glycolysis |
| C. | Krebs cycle |
| D. | electrolysis |
| Answer» E. | |
| 758. |
The chemical formula of alcohol is |
| A. | (C2)H5OH) |
| B. | (C6)H12OH) |
| C. | (C5)H5OH) |
| D. | (C7)H8OH) |
| Answer» B. (C6)H12OH) | |
| 759. |
The problems related to nutrition of nutrients is called |
| A. | malnutrition |
| B. | solubility of nutrition |
| C. | insolubility of nutrition |
| D. | balancing of nutrition |
| Answer» B. solubility of nutrition | |
| 760. |
The amount of calories found in one gram of proteins is |
| A. | 9 kilocalories |
| B. | 7 kilocalories |
| C. | 4 kilocalories |
| D. | 5 kilocalories |
| Answer» D. 5 kilocalories | |
| 761. |
The kind of malnutrition (PEM) stands for |
| A. | pepsin energy malnutrition |
| B. | protein-excess malnutrition |
| C. | protein-energy malnutrition |
| D. | pepsin-enzyme malnutrition |
| Answer» D. pepsin-enzyme malnutrition | |
| 762. |
The proteins are considered as essential components of |
| A. | cytoplasm and organelles |
| B. | ligaments and tendons |
| C. | cytoplasm and muscles |
| D. | all of above |
| Answer» E. | |
| 763. |
The number of sphincters in stomach are |
| A. | cardiac sphincter only |
| B. | pyloric sphincter only |
| C. | gastric portion |
| D. | cardiac and pyloric sphincter |
| Answer» E. | |
| 764. |
The atherosclerosis and arteriosclerosis are classified as disease of |
| A. | arteries |
| B. | bones |
| C. | liver |
| D. | kidneys |
| Answer» B. bones | |
| 765. |
In females, the number of red blood cells in one cubic millimeter of blood are |
| A. | 1 to 2 million |
| B. | 2 to 3 million |
| C. | 4 to 4.5 million |
| D. | 4.5 to 5.5 million |
| Answer» D. 4.5 to 5.5 million | |
| 766. |
The eosinophils, neutrophils and basophils are considered as part of |
| A. | granulocytes |
| B. | Agranulocytes |
| C. | megakaryocytes |
| D. | thrombocytes |
| Answer» B. Agranulocytes | |
| 767. |
After receiving the blood from lungs, the heart pumps it to the |
| A. | right atria |
| B. | left atria |
| C. | arms and legs |
| D. | body |
| Answer» E. | |
| 768. |
The inferior mesenteric artery is located below the |
| A. | gonadal arteries |
| B. | intercostal arteries |
| C. | dorsal aorta |
| D. | superior vena cava |
| Answer» B. intercostal arteries | |
| 769. |
The molecule of hemoglobin contains single atom of |
| A. | iron |
| B. | zinc |
| C. | magnesium |
| D. | potassium |
| Answer» B. zinc | |
| 770. |
The symptom of an ulcer is |
| A. | abdominal burning after meals |
| B. | increase in weight |
| C. | kidney stones |
| D. | cough and fever |
| Answer» B. increase in weight | |
| 771. |
The spherical mass in which pieces of food are slipped that were rolled up by tongue is |
| A. | saliva |
| B. | bolus |
| C. | bile |
| D. | esophagus |
| Answer» C. bile | |
| 772. |
The important sources of lipids include |
| A. | apricots and plums |
| B. | strawberries and cherries |
| C. | apples and kiwi |
| D. | coconut and mustard seeds |
| Answer» E. | |
| 773. |
The disease which is caused by intake of insufficient amount of iodine in the diet is |
| A. | intestinal ulcer |
| B. | lung cancer |
| C. | goiter |
| D. | kidney stones |
| Answer» D. kidney stones | |
| 774. |
The bile is released into the duodenum through the duct called |
| A. | common bile duct |
| B. | pancreatic bile duct |
| C. | oral bile duct |
| D. | urinary bile duct |
| Answer» B. pancreatic bile duct | |
| 775. |
The first fat-soluble vitamin 'vitamin A' was identified in |
| A. | 1913 |
| B. | 1918 |
| C. | 1923 |
| D. | 1926 |
| Answer» B. 1918 | |
| 776. |
The mineral which acts as a cofactor for other enzymes is |
| A. | iron |
| B. | ethane |
| C. | methane |
| D. | potassium |
| Answer» E. | |
| 777. |
The wilting and yellowing of leaves is due to the deficiency of |
| A. | calcium |
| B. | magnesium |
| C. | potassium |
| D. | sodium |
| Answer» C. potassium | |
| 778. |
The disease caused in adults because of deficiency of vitamin D is |
| A. | hemophilia |
| B. | tuberculosis |
| C. | osteoporosis |
| D. | Osteomalacia |
| Answer» E. | |
| 779. |
During the day, the plants keep their |
| A. | stomata opens |
| B. | stomata closed |
| C. | phloem blocked |
| D. | xylem blocked |
| Answer» B. stomata closed | |
| 780. |
The oxygenated blood is brought to left atrium from lungs through |
| A. | pulmonary veins |
| B. | pericardial veins |
| C. | pericardium veins |
| D. | semi lunar veins |
| Answer» B. pericardial veins | |
| 781. |
The veins that comes from pancreas, spleen, stomach and intestine drains into |
| A. | superior dorsal vein |
| B. | inferior portal vein |
| C. | hepatic portal vein |
| D. | superior portal vein |
| Answer» D. superior portal vein | |
| 782. |
The pulmonary veins are veins from |
| A. | lungs |
| B. | ankles and knees |
| C. | liver and kidneys |
| D. | stomach and kidneys |
| Answer» B. ankles and knees | |
| 783. |
The meaning of infarction is death of |
| A. | aorta |
| B. | artery |
| C. | tissue |
| D. | muscle |
| Answer» D. muscle | |
| 784. |
The situation in which transport protein moves the substance to lower concentration from higher concentration is called |
| A. | osmoregulatory diffusion |
| B. | facilitated diffusion |
| C. | passive diffusion |
| D. | active diffusion |
| Answer» C. passive diffusion | |
| 785. |
The cell organelle which is found in the cells of photosynthetic protists and plants is called |
| A. | granum |
| B. | stroma |
| C. | chloroplasts |
| D. | plastids |
| Answer» E. | |
| 786. |
As compared to simple diffusion, the facilitated diffusion rate is |
| A. | higher |
| B. | lower |
| C. | equal |
| D. | none of above |
| Answer» B. lower | |
| 787. |
Considering kinds of epithelial tissues, the columnar epithelium is composed of |
| A. | elongated cells |
| B. | flat cells with flagella |
| C. | cube cells with cilia |
| D. | flat cells with cilia |
| Answer» B. flat cells with flagella | |
| 788. |
The lumen is also known as |
| A. | right artery |
| B. | left artery |
| C. | small intestine |
| D. | large intestine |
| Answer» D. large intestine | |
| 789. |
The gut disorder in which the inner wall of the gut become sore is called |
| A. | typhoid |
| B. | ulcer |
| C. | hepatitis B |
| D. | constipation |
| Answer» C. hepatitis B | |
| 790. |
The molecules that cannot cross the membranes are classified as |
| A. | diffusible molecules |
| B. | non-diffusible molecules |
| C. | saturated molecules |
| D. | unsaturated molecules |
| Answer» B. non-diffusible molecules | |
| 791. |
The zinc, chromium, fluorine, and iodine are considered as |
| A. | oxidized minerals |
| B. | trace minerals |
| C. | major minerals |
| D. | mega minerals |
| Answer» C. major minerals | |
| 792. |
The amount of calories found in one gram of carbohydrates is |
| A. | 9 kilocalories |
| B. | 7 kilocalories |
| C. | 4 kilocalories |
| D. | 5 kilocalories |
| Answer» D. 5 kilocalories | |
| 793. |
The effects of organic fertilizers include |
| A. | aeration |
| B. | soil drainage |
| C. | ability of nutrient holding |
| D. | all of above |
| Answer» E. | |
| 794. |
The kind of malnutrition in which more nutrients are taken than the required amount for normal growth of the body is |
| A. | protein energy malnutrition |
| B. | over-intake of nutrients |
| C. | mineral deficiency diseases |
| D. | pepsin-enzyme malnutrition |
| Answer» C. mineral deficiency diseases | |
| 795. |
The J-shaped structure located beneath the diaphragm in the left of the abdomen is classified as |
| A. | liver |
| B. | lungs |
| C. | kidneys |
| D. | stomach |
| Answer» E. | |
| 796. |
The fibrous protein which gives strength and support to connective tissues is classified as |
| A. | cartilage |
| B. | collagen |
| C. | keratin |
| D. | cervical |
| Answer» C. keratin | |
| 797. |
The inorganic elements that cannot be made in the bodies and are originated in the Earth are called |
| A. | carbohydrates |
| B. | proteins |
| C. | lipids |
| D. | minerals |
| Answer» E. | |
| 798. |
The gastric juice is composed of |
| A. | mucous |
| B. | hydrochloric acid |
| C. | pepsinogen |
| D. | all of above |
| Answer» E. | |
| 799. |
The cancerous mutation in lymph tissue cells or bone marrow leads to defective |
| A. | Agranulocytes |
| B. | erythrocytes |
| C. | leukocytes |
| D. | thrombocytes |
| Answer» D. thrombocytes | |
| 800. |
The person having blood group O have |
| A. | antigen A |
| B. | antigen B |
| C. | No antigens |
| D. | none of above |
| Answer» D. none of above | |