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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.
| 1301. |
The valve which prevents the blood backflow to the left atrium from |
| A. | left ventricle |
| B. | right ventricle |
| C. | right atria |
| D. | left atria |
| Answer» B. right ventricle | |
| 1302. |
The mechanical widening of the obstructed blood vessel or narrowed blood vessel is known as |
| A. | angioplasty |
| B. | endoscopy |
| C. | lithoscopy |
| D. | bypass surgery |
| Answer» B. endoscopy | |
| 1303. |
The blood circulatory system in which blood will never leave the veins, arteries and capillaries is called |
| A. | closed blood circulatory system |
| B. | osmotic blood circulatory system |
| C. | binary blood circulatory system |
| D. | integumentary blood circulatory system |
| Answer» B. osmotic blood circulatory system | |
| 1304. |
The phloem and xylem tissues are also known as |
| A. | meristematic tissues |
| B. | non-conducting tissues |
| C. | conducting tissues |
| D. | collective tissues |
| Answer» D. collective tissues | |
| 1305. |
Studying organism with an economical aspect is done in |
| A. | biophysics |
| B. | biochemistry |
| C. | physical biology |
| D. | bio economics |
| Answer» E. | |
| 1306. |
The part of the mustard plant which is used to extract oil is |
| A. | flowers |
| B. | seeds |
| C. | leaves |
| D. | peel |
| Answer» C. leaves | |
| 1307. |
The seeds of the mustard plant are used in making |
| A. | mustard oil |
| B. | mustard powder |
| C. | mustard sauce |
| D. | mustard ointment |
| Answer» B. mustard powder | |
| 1308. |
The branch of biology which deals with the study of structures and forms of living organisms is called |
| A. | physiology |
| B. | histology |
| C. | anatomy |
| D. | morphology |
| Answer» E. | |
| 1309. |
The scientific knowledge is divided in to various |
| A. | classes |
| B. | kingdoms |
| C. | branches |
| D. | types |
| Answer» D. types | |
| 1310. |
The exporting organs of plants are called |
| A. | links |
| B. | sources |
| C. | sinks |
| D. | epidermis |
| Answer» C. sinks | |
| 1311. |
The invertebrates that have the open circulatory system are |
| A. | sea horse |
| B. | sea spider |
| C. | jewel anemone |
| D. | arthropods |
| Answer» E. | |
| 1312. |
Considering the layers of arteries, the outermost layer of the artery is composed of |
| A. | muscle tissue |
| B. | nervous tissue |
| C. | muscular tissue |
| D. | connective tissue |
| Answer» E. | |
| 1313. |
The heart of humans works as |
| A. | triple channel |
| B. | double channel |
| C. | double pump |
| D. | triple pump |
| Answer» D. triple pump | |
| 1314. |
The percentage of plasma in blood in a healthy person is |
| A. | 0.75 |
| B. | 0.45 |
| C. | 0.55 |
| D. | 0.65 |
| Answer» D. 0.65 | |
| 1315. |
The energy released by breakdown of bonds is |
| A. | hydra energy |
| B. | thermal energy |
| C. | potential energy |
| D. | kinetic energy |
| Answer» E. | |
| 1316. |
When atoms of hydrogen give electrons to chlorophyll then the atoms become |
| A. | solute |
| B. | compounds |
| C. | molecules |
| D. | ions |
| Answer» E. | |
| 1317. |
The molecule of pyruvic acid is equal to |
| A. | (11-C) |
| B. | (8-C) |
| C. | (3-C) |
| D. | (9-C) |
| Answer» D. (9-C) | |
| 1318. |
The kind of respiration through which skeletal muscles of human body gets the energy is |
| A. | acidic respiration |
| B. | anaerobic respiration |
| C. | aerobic respiration |
| D. | nitrogenous respiration |
| Answer» C. aerobic respiration | |
| 1319. |
The energy is obtained in organisms by |
| A. | induction of food |
| B. | catabolizing the food |
| C. | metabolizing the food |
| D. | anatomizing the food |
| Answer» D. anatomizing the food | |
| 1320. |
The summary of data which is calculated through mean value is classified as |
| A. | statistics |
| B. | probability |
| C. | geometry |
| D. | algebra |
| Answer» B. probability | |
| 1321. |
The name of the mosquito which is responsible for transmitting dengue fever is |
| A. | Culex mosquito |
| B. | Aedes mosquito |
| C. | Anopheles mosquito |
| D. | none of above |
| Answer» C. Anopheles mosquito | |
| 1322. |
A hypothesis is approved or disapproved on the basis of |
| A. | data analysis |
| B. | control |
| C. | postulate theory |
| D. | law |
| Answer» B. control | |
| 1323. |
Evidence is required to support a |
| A. | query |
| B. | theory |
| C. | hypothesis |
| D. | deduction |
| Answer» C. hypothesis | |
| 1324. |
The kind of hypotheses which is not rejected at the time of test is classified as |
| A. | summaries |
| B. | observations |
| C. | deductions |
| D. | theories |
| Answer» E. | |
| 1325. |
The immune system of organism is studied in |
| A. | entomology |
| B. | immunology |
| C. | paleontology |
| D. | taxonomy |
| Answer» C. paleontology | |
| 1326. |
To understand principles of nature |
| A. | observations are made |
| B. | experiments are done |
| C. | logical conclusions are drawn |
| D. | all of above |
| Answer» E. | |
| 1327. |
The branch of biology which deals with the study of internal structures is called |
| A. | zoology |
| B. | anatomy |
| C. | immunology |
| D. | socio-biology |
| Answer» C. immunology | |
| 1328. |
The study of animals is classified as |
| A. | histology |
| B. | botany |
| C. | zoology |
| D. | microbiology |
| Answer» D. microbiology | |
| 1329. |
The study of principles from physics that are applicable to the biological phenomena is classified as |
| A. | biophysics |
| B. | geophysics |
| C. | biography |
| D. | biogeography |
| Answer» B. geophysics | |
| 1330. |
The diseases that involve blood vessels or heart are called |
| A. | vena cava disorders |
| B. | hepatic disorders |
| C. | cardiovascular disorders |
| D. | pulmonary disorders |
| Answer» D. pulmonary disorders | |
| 1331. |
The leukemia is also known as |
| A. | skin cancer |
| B. | blood cancer |
| C. | lungs cancer |
| D. | kidney cancer |
| Answer» C. lungs cancer | |
| 1332. |
The food is moved into tubes of phloem through active transport at |
| A. | source |
| B. | link |
| C. | sink |
| D. | all of above |
| Answer» B. link | |
| 1333. |
The ions that flow back to guard cells, from epidermal cells at the end of the day are |
| A. | potassium ions |
| B. | magnesium ions |
| C. | phosphorus ions |
| D. | Sulphur ions |
| Answer» B. magnesium ions | |
| 1334. |
The blood vessels in which there are no valves includes |
| A. | veins and capillaries |
| B. | capillaries and arteries |
| C. | arteries and nerves |
| D. | veins and arteries |
| Answer» C. arteries and nerves | |
| 1335. |
Biologist learn about the hypothesis, either it is true or false through |
| A. | query |
| B. | experimentation |
| C. | deduction |
| D. | analysis |
| Answer» C. deduction | |
| 1336. |
The values, dates, and names that are extracted from experimentation and observations are classified as |
| A. | facts |
| B. | data |
| C. | principle |
| D. | hypothesis |
| Answer» C. principle | |
| 1337. |
The logical consequences of the hypothesis are known as |
| A. | query |
| B. | hypothesis |
| C. | deduction |
| D. | analysis |
| Answer» D. analysis | |
| 1338. |
The hypothesis which is accepted should be |
| A. | valid only |
| B. | useful only |
| C. | testable |
| D. | valid and useful |
| Answer» E. | |
| 1339. |
Science is the systematic knowledge which is derived from |
| A. | observation |
| B. | experiments |
| C. | a and b |
| D. | hypothesis |
| Answer» D. hypothesis | |
| 1340. |
The separate identical copies of chromosomes are formed at the |
| A. | end of metaphase |
| B. | end of anaphase |
| C. | end of telophase |
| D. | end of prophase |
| Answer» C. end of telophase | |
| 1341. |
The way of asexual reproduction in plants is |
| A. | vegetative propagation |
| B. | hydra propagation |
| C. | osmotic propagation |
| D. | digestive propagation |
| Answer» B. hydra propagation | |
| 1342. |
The phase of meiosis II in which sister chromatids are pulled apart and centromeres are cleaved is called |
| A. | macro phase II |
| B. | anaphase II |
| C. | anaphase II |
| D. | microphase II |
| Answer» C. anaphase II | |
| 1343. |
The cells in which chromosomes are in pairs are classified as |
| A. | bud cells |
| B. | benign cells |
| C. | haploid cells |
| D. | diploid cells |
| Answer» E. | |
| 1344. |
The meaning of Greek word 'meioun' is to |
| A. | surrounds |
| B. | destroy |
| C. | make smaller |
| D. | make larger |
| Answer» D. make larger | |
| 1345. |
The secondary walls of cells present in xylem tissues are rigid and thick due to |
| A. | absence of tubulin |
| B. | presence of lignin |
| C. | absence of lignin |
| D. | presence of tubulin |
| Answer» C. absence of lignin | |
| 1346. |
The meristematic tissues lack |
| A. | micro tissues |
| B. | fibrous tissues |
| C. | intra cellular tissues |
| D. | inter cellular tissues |
| Answer» E. | |
| 1347. |
The cells that make proteins for the sieve tube cells are |
| A. | vessel cells |
| B. | epidermal cells |
| C. | companion cells |
| D. | vascular cells |
| Answer» D. vascular cells | |
| 1348. |
The lipids, carbohydrates, and proteins are considered as |
| A. | mosaic molecules |
| B. | organic molecules |
| C. | inorganic molecules |
| D. | plasma molecules |
| Answer» C. inorganic molecules | |
| 1349. |
The simple tissues that are composed of parenchyma cells are called |
| A. | vessel tissues |
| B. | ground tissues |
| C. | connective tissues |
| D. | vascular tissues |
| Answer» C. connective tissues | |
| 1350. |
The respiration is a process used in |
| A. | all organisms |
| B. | algae only |
| C. | fungi only |
| D. | protozoan only |
| Answer» B. algae only | |