MCQOPTIONS
Saved Bookmarks
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.
| 301. |
The difference between blood groups Rh-positive and Rh-negative are based on antigens known as |
| A. | positive factors |
| B. | O factors |
| C. | AB factors |
| D. | Rh factors |
| Answer» E. | |
| 302. |
The Ibn-e-Nafees was born in |
| A. | 1210 AD |
| B. | 1310 AD |
| C. | 1410 AD |
| D. | 1510 AD |
| Answer» B. 1310 AD | |
| 303. |
The food is unloaded at the end of the sink through |
| A. | osmotic transport |
| B. | inactive transport |
| C. | active transport |
| D. | epidermal transport |
| Answer» B. inactive transport | |
| 304. |
The valve which guards the opening between the left ventricle and left atrium is known as |
| A. | bicuspid atria |
| B. | tricuspid valve |
| C. | bicuspid valve |
| D. | tricuspid atria |
| Answer» D. tricuspid atria | |
| 305. |
The path on which oxygenated blood is carried to the heart from the lungs and deoxygenated blood is carried to lungs from the heart is classified as |
| A. | pericardial circuit |
| B. | pericardium circuit |
| C. | aortic circuit |
| D. | pulmonary circuit |
| Answer» E. | |
| 306. |
The resolution of electron microscope is |
| A. | 0.1 nm |
| B. | 0.2nm |
| C. | 10nm |
| D. | 20nm |
| Answer» C. 10nm | |
| 307. |
The type of epithelial tissues which consists of layers of flat cells is |
| A. | cuboidal epithelium |
| B. | stratified squamous epithelium |
| C. | squamous epithelium |
| D. | columnar epithelium |
| Answer» C. squamous epithelium | |
| 308. |
The region in which chromosomes floats in the cytoplasm is called |
| A. | centrosome |
| B. | centrioles |
| C. | granum |
| D. | nucleoid |
| Answer» E. | |
| 309. |
The mitochondria is the place for |
| A. | oxygenation |
| B. | aerobic respiration |
| C. | anaerobic respiration |
| D. | protein synthesis |
| Answer» C. anaerobic respiration | |
| 310. |
The chromosomes are visible in nucleus during |
| A. | vacuoles formation |
| B. | cell division |
| C. | energy formation |
| D. | none of above |
| Answer» C. energy formation | |
| 311. |
The function of white blood cells is to act as an agent in which system of the body? |
| A. | nervous system |
| B. | respiratory system |
| C. | defense system |
| D. | digestive system |
| Answer» D. digestive system | |
| 312. |
The shape of red blood cells are |
| A. | triconvex |
| B. | triconcave |
| C. | biconcave |
| D. | biconvex |
| Answer» D. biconvex | |
| 313. |
The right and left atria are considered as |
| A. | lower thick-walled chambers |
| B. | upper thick-walled chambers |
| C. | lower thin-walled chambers |
| D. | upper thin-walled chambers |
| Answer» E. | |
| 314. |
The single layer of cells which surrounds the pericycle is |
| A. | endodermis |
| B. | pericycle |
| C. | procycle |
| D. | cortex |
| Answer» B. pericycle | |
| 315. |
The valve which prevents the blood backflow to right atrium from the right ventricle is classified as |
| A. | bicuspid atria |
| B. | tricuspid valve |
| C. | bicuspid valve |
| D. | tricuspid atria |
| Answer» C. bicuspid valve | |
| 316. |
The transpiration of water is also considered as loss of |
| A. | water |
| B. | oxygen |
| C. | nitrogen |
| D. | carbon dioxide |
| Answer» B. oxygen | |
| 317. |
The Rh-negative blood group of a person is based on |
| A. | presence of neutrophils |
| B. | absence of Rh factors |
| C. | presence of Rh factors |
| D. | presence of tubulin |
| Answer» C. presence of Rh factors | |
| 318. |
The life span of white blood cells is |
| A. | seconds to minutes |
| B. | months to even years |
| C. | minutes to days |
| D. | none of above |
| Answer» C. minutes to days | |
| 319. |
The tissues in plants that cause food and water throughout the body of the plant are |
| A. | phloem and xylem |
| B. | mesophyll and chlorophyll |
| C. | paraffin and mesophyll |
| D. | xylem and chlorophyll |
| Answer» B. mesophyll and chlorophyll | |
| 320. |
The name of the scientist on whom Cooley's anemia was named is |
| A. | Thomas B. Cooley |
| B. | John B. Cooley |
| C. | Ernst B. Cooley |
| D. | Jane B. Cooley |
| Answer» B. John B. Cooley | |
| 321. |
The substances which make 7-9% of plasma in weight are |
| A. | nucleotides |
| B. | amino acids |
| C. | glucose |
| D. | proteins |
| Answer» E. | |
| 322. |
The white substance seen at sites of infection which is the accumulation of dead cells is called |
| A. | cristae |
| B. | sternum |
| C. | clot |
| D. | pus |
| Answer» E. | |
| 323. |
The broad zone surrounding the endodermis which is composed of thin and large walled cells is called |
| A. | caecum |
| B. | cortex |
| C. | guard cells |
| D. | lower epidermis |
| Answer» C. guard cells | |
| 324. |
The amount of blood in an adult human is |
| A. | 6 liters |
| B. | 5 liters |
| C. | 7 liters |
| D. | 9 liters |
| Answer» C. 7 liters | |
| 325. |
The veins from the shoulders, head, and arms are joined together to form |
| A. | superior mesenteric artery |
| B. | celiac artery |
| C. | superior van cava |
| D. | inferior vana cava |
| Answer» D. inferior vana cava | |
| 326. |
The human blood circulatory system is also known as |
| A. | muscular system |
| B. | cardiovascular system |
| C. | integumentary system |
| D. | immune system |
| Answer» C. integumentary system | |
| 327. |
The exchange allowed by the wet surface of cells of leaves is |
| A. | kinetic exchange |
| B. | potential exchange |
| C. | osmotic exchange |
| D. | gaseous exchange |
| Answer» E. | |
| 328. |
The arteriosclerosis occurs due to the presence of |
| A. | phosphorus in arteries |
| B. | potassium in arteries |
| C. | magnesium in arteries |
| D. | calcium in arteries |
| Answer» C. magnesium in arteries | |
| 329. |
The xylem in plants acts as a one-way street from |
| A. | roots |
| B. | stems |
| C. | shoots |
| D. | leaves |
| Answer» B. stems | |
| 330. |
The granulocytes and Agranulocytes are classified as types of |
| A. | macrocytosis |
| B. | thrombocytes |
| C. | erythrocytes |
| D. | leukocytes |
| Answer» E. | |
| 331. |
The large artery in which oxygenated blood is carried after leaving left ventricle is considered as |
| A. | hepatic artery |
| B. | aorta |
| C. | atrium |
| D. | celiac artery |
| Answer» C. atrium | |
| 332. |
The example of a plant which is sink in the first season of growth and source in next season of growth is |
| A. | root of basil |
| B. | root of mint |
| C. | root of coriander |
| D. | root of beet |
| Answer» E. | |
| 333. |
The molecule by which immune response can be stimulated is called |
| A. | white blood cells |
| B. | red blood cells |
| C. | antigen |
| D. | antibody |
| Answer» D. antibody | |
| 334. |
The fragments of large cells of the bone marrow are classified as |
| A. | megakaryocytes |
| B. | thrombocytes |
| C. | granulocytes |
| D. | Agranulocytes |
| Answer» B. thrombocytes | |
| 335. |
The cells in a single layer that bounds the cortex on the outside are |
| A. | mesophyll cells |
| B. | lateral cells |
| C. | epidermal cells |
| D. | chlorophyll cells |
| Answer» D. chlorophyll cells | |
| 336. |
The blood cancer or leukemia can be cured by |
| A. | lungs transplant |
| B. | bone marrow transplant |
| C. | liver transplant |
| D. | kidney transplant |
| Answer» C. liver transplant | |
| 337. |
The number of times the average human heart beats in one minute is |
| A. | 40 times |
| B. | 80 times |
| C. | 70 times |
| D. | 50 times |
| Answer» D. 50 times | |
| 338. |
The life of platelets present in the blood is about |
| A. | 7-8 months |
| B. | 7-8 days |
| C. | 7-8 years |
| D. | 7-8 minutes |
| Answer» C. 7-8 years | |
| 339. |
The risk factors that lead to cardiovascular includes |
| A. | diabetes |
| B. | cholesterol |
| C. | hypertension |
| D. | all of above |
| Answer» E. | |
| 340. |
The cohesion and adhesion of water molecules causes the formation of |
| A. | columns of water |
| B. | matrices of water |
| C. | columns of oxygen molecules |
| D. | columns of carbon molecules |
| Answer» B. matrices of water | |
| 341. |
The factors that affect the rate of transpiration includes |
| A. | air movement and humidity |
| B. | temperature |
| C. | leaf surface area |
| D. | all of above |
| Answer» E. | |
| 342. |
The walls of capillaries are composed of a layer of cells called |
| A. | fibrinogen |
| B. | albumin |
| C. | exothelial |
| D. | endothelium |
| Answer» E. | |
| 343. |
The flaps in the veins that prevent backflow of blood are called |
| A. | albumin |
| B. | capillaries |
| C. | valves |
| D. | arteries |
| Answer» D. arteries | |
| 344. |
The types of blood disorders include |
| A. | leukemia |
| B. | bleeding disorders |
| C. | thalassemia |
| D. | all of above |
| Answer» E. | |
| 345. |
The International thalassemia Day is celebrated on |
| A. | December 8th |
| B. | August 8th |
| C. | June 8th |
| D. | May 8th |
| Answer» E. | |
| 346. |
In a minute, the number of times heartbeats is classified as |
| A. | relaxing rate |
| B. | heart rate |
| C. | cardiac rate |
| D. | contracting rate |
| Answer» C. cardiac rate | |
| 347. |
The scientist who described the pumping action of the heart and blood pathway in veins and arteries is |
| A. | Ernst Mayr |
| B. | Alexander Fleming |
| C. | William Harvey |
| D. | James Watson |
| Answer» D. James Watson | |
| 348. |
The veins that carry blood from knee, calf, and foot are together considered as |
| A. | superior aorta |
| B. | superior atria |
| C. | celiac vein |
| D. | femoral vein |
| Answer» E. | |
| 349. |
Diarrhea occurs because of |
| A. | less water absorption |
| B. | more water absorption |
| C. | less water consumption |
| D. | more water consumption |
| Answer» B. more water absorption | |
| 350. |
The salts present in bile in place of enzymes are used for emulsification of |
| A. | proteins |
| B. | lipids |
| C. | carbohydrates |
| D. | amino acids |
| Answer» C. carbohydrates | |