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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.
| 1251. |
In the animal cells, the number of centrioles that are located near the nucleus surface is |
| A. | ten |
| B. | eight |
| C. | five |
| D. | two |
| Answer» E. | |
| 1252. |
The type of connective tissue is |
| A. | adipose tissue |
| B. | squamous tissue |
| C. | cuboidal tissue |
| D. | stratified tissue |
| Answer» B. squamous tissue | |
| 1253. |
The size of red blood cells (in diameter) is |
| A. | 10µm |
| B. | 8µm |
| C. | 12µm |
| D. | 5µm |
| Answer» C. 12µm | |
| 1254. |
According to biologists, there are electron microscope's types in a number |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 1255. |
The natural occurring source of vitamin D is |
| A. | UV from Sun |
| B. | tropical rains |
| C. | rainforest plants |
| D. | monsoon winds |
| Answer» B. tropical rains | |
| 1256. |
The removal of amino groups from the amino acids is called |
| A. | assimilation |
| B. | emulsification |
| C. | ingestion |
| D. | de-amination |
| Answer» E. | |
| 1257. |
The vitamins A, D, E, and K are classified as |
| A. | carbon-soluble vitamins |
| B. | oxygen-soluble vitamins |
| C. | ethyl-soluble vitamins |
| D. | calcium-soluble vitamins |
| Answer» C. ethyl-soluble vitamins | |
| 1258. |
The organisms that obtain from some other organisms are classified as |
| A. | prokaryotic organisms |
| B. | eukaryotic organisms |
| C. | heterotrophic organisms |
| D. | autotrophic organisms |
| Answer» D. autotrophic organisms | |
| 1259. |
The numerous finger-like projections in the folds of the wall of the ileum are classified as |
| A. | bolus |
| B. | chyme |
| C. | villi |
| D. | bile |
| Answer» D. bile | |
| 1260. |
The semi-transparent substance which is present between the nuclear envelope and plasma membrane is classified as |
| A. | ribosomal fluid |
| B. | cytoplasm |
| C. | centrioles |
| D. | lysosomes |
| Answer» C. centrioles | |
| 1261. |
The tissue which covers the organ lines and outside of the body is called |
| A. | hypotonic tissues |
| B. | isotonic tissues |
| C. | epithelial tissue |
| D. | hypertonic tissues |
| Answer» D. hypertonic tissues | |
| 1262. |
The structure of cell which provides protection, support, and shape to the living inner matter is classified as |
| A. | Golgi wall |
| B. | cell wall |
| C. | tertiary wall |
| D. | endoplasmic wall |
| Answer» B. cell wall | |
| 1263. |
The nonliving and strong component which surrounds the outer layer is |
| A. | cell membrane |
| B. | cell wall |
| C. | plasma |
| D. | nuclear envelope |
| Answer» C. plasma | |
| 1264. |
The cylindrical and hollow organelles that are found in many unicellular organisms and animals are |
| A. | endoplasmic reticulum |
| B. | centrioles |
| C. | vacuoles |
| D. | cytoplasm |
| Answer» C. vacuoles | |
| 1265. |
The redox reactions involve the exchange of |
| A. | electrons between atoms |
| B. | protons between atoms |
| C. | neutrons between atoms |
| D. | neurons between molecules |
| Answer» B. protons between atoms | |
| 1266. |
In the electron transport chain, the three ATP molecules produced |
| A. | nicotinamide adenine dinucleotide hydrogen (NADH) |
| B. | Adenosine monophosphate (AMP) |
| C. | adenosine triphosphate (ATP) |
| D. | flavin adenine dinucleotide (FAD) |
| Answer» B. Adenosine monophosphate (AMP) | |
| 1267. |
In anaerobic respiration, the number of ATP produced as the net profit is |
| A. | 10 |
| B. | 8 |
| C. | 6 |
| D. | 2 |
| Answer» E. | |
| 1268. |
The site for the glycolysis stage in aerobic respiration is |
| A. | cytoplasm |
| B. | mitochondria |
| C. | Golgi apparatus |
| D. | centrioles |
| Answer» B. mitochondria | |
| 1269. |
In lactic acid fermentation, the pyruvic acid molecules are converted into |
| A. | nitric acid |
| B. | citric acid |
| C. | acetic acid |
| D. | lactic acid |
| Answer» E. | |
| 1270. |
The process of diffusion of digested food into the lymph and blood is called |
| A. | absorption |
| B. | dissimilation |
| C. | refraction |
| D. | diffraction |
| Answer» B. dissimilation | |
| 1271. |
The fatty acids found in lipids are bonded to each other with |
| A. | methanol |
| B. | acetyl |
| C. | ethanol |
| D. | glycerol |
| Answer» E. | |
| 1272. |
The minerals that are required in an amount of 100 milligrams or more are called |
| A. | major minerals |
| B. | minor minerals |
| C. | saturated minerals |
| D. | unsaturated minerals |
| Answer» B. minor minerals | |
| 1273. |
The length of esophagus in an adult human is |
| A. | 25 cm |
| B. | 30 cm |
| C. | 20 cm |
| D. | 15 cm |
| Answer» B. 30 cm | |
| 1274. |
The process of taking the food in is called |
| A. | distillation |
| B. | ingestion |
| C. | absorption |
| D. | assimilation |
| Answer» C. absorption | |
| 1275. |
The bacteria are also known as |
| A. | cytoplasma |
| B. | macroplasma |
| C. | mycoplasma |
| D. | microplasma |
| Answer» D. microplasma | |
| 1276. |
The major categories of plants tissues are |
| A. | compound tissues only |
| B. | simple tissues only |
| C. | epidermal tissues |
| D. | compound and simple tissues |
| Answer» E. | |
| 1277. |
The photograph which is taken from a microscope is known as |
| A. | macrograph |
| B. | monograph |
| C. | micrograph |
| D. | pictograph |
| Answer» D. pictograph | |
| 1278. |
Lenses which enlarges the image on photographic film are known as |
| A. | electron microscope |
| B. | electron gun |
| C. | electromagnetic film |
| D. | negative |
| Answer» D. negative | |
| 1279. |
The nucleus of the cell was discovered by |
| A. | Robert Hooke |
| B. | Aristotle |
| C. | Robert Brown |
| D. | Matthias Schleiden |
| Answer» D. Matthias Schleiden | |
| 1280. |
The situation which occurs due to the occurrence of more rainfall than normal level or poor water distribution is |
| A. | drought |
| B. | monsoon winds |
| C. | flood |
| D. | tropical rain |
| Answer» D. tropical rain | |
| 1281. |
The problems that can occur because of malnutrition for a long period are |
| A. | heart diseases |
| B. | starvation |
| C. | obesity |
| D. | all of above |
| Answer» E. | |
| 1282. |
The micronutrient which is important in the transport of sugar, synthesis of enzymes and cell division is |
| A. | phosphorus |
| B. | boron |
| C. | potassium |
| D. | Sulphur |
| Answer» C. potassium | |
| 1283. |
The minerals that are required in an amount of less than 100 mg are called |
| A. | citric minerals |
| B. | nitric minerals |
| C. | trace minerals |
| D. | major minerals |
| Answer» D. major minerals | |
| 1284. |
The kinds of fatty acids include |
| A. | unsaturated fatty acids only |
| B. | saturated fatty acids only |
| C. | acetic fatty acid |
| D. | unsaturated and saturated fatty acids |
| Answer» E. | |
| 1285. |
The list prepared by International Union for Conservation of Nature and Natural Resources for endangered species is classified as |
| A. | Brown List |
| B. | White List |
| C. | Black List |
| D. | Red List |
| Answer» E. | |
| 1286. |
The scientific name Homo sapiens is used for recognition of |
| A. | human beings |
| B. | animals |
| C. | flower plants |
| D. | seedless fruits |
| Answer» B. animals | |
| 1287. |
Because of deforestation, the decreased transpiration leads to |
| A. | less cloud formation |
| B. | more cloud formation |
| C. | more water storage |
| D. | more oxygen |
| Answer» B. more cloud formation | |
| 1288. |
Earth is inhabited by at least 10 million kinds of |
| A. | animals |
| B. | organisms |
| C. | human |
| D. | birds |
| Answer» C. human | |
| 1289. |
The project which successfully implemented and banned animals hunting was |
| A. | world health organization (WHO) |
| B. | The International Union for Conservation of Nature (IUCN) only |
| C. | World Wildlife Fund project (WWF-P) only |
| D. | none of above |
| Answer» D. none of above | |
| 1290. |
The functions of the oral cavity are |
| A. | lubrication only |
| B. | chemical digestion only |
| C. | releasing synthetic enzymes |
| D. | lubrication andchemicla digestion |
| Answer» E. | |
| 1291. |
The bolus enters into the stomach from the esophagus through the sphincter called |
| A. | pepsin sphincter |
| B. | cardiac sphincter |
| C. | gastric sphincter |
| D. | pyloric sphincter |
| Answer» C. gastric sphincter | |
| 1292. |
The sources of soluble dietary fiber include |
| A. | beans and oats |
| B. | barley |
| C. | vegetables and fruits |
| D. | all of above |
| Answer» E. | |
| 1293. |
The situation in which there is less water availability for agricultural purposes is called |
| A. | monsoon |
| B. | thunderstorm |
| C. | famine |
| D. | drought |
| Answer» E. | |
| 1294. |
The elemental sulfur, gypsum and rock phosphate are classified as |
| A. | inorganic fertilizers |
| B. | nitric fertilizers |
| C. | organic fertilizer |
| D. | bio-fertilizers |
| Answer» B. nitric fertilizers | |
| 1295. |
The occurrence of mitosis in living organisms leads to the |
| A. | increased cells |
| B. | decreased cells |
| C. | benign cells |
| D. | malignant cells |
| Answer» B. decreased cells | |
| 1296. |
The third phase of the cell cycle is called |
| A. | second gap |
| B. | first gap |
| C. | fourth gap |
| D. | third gap |
| Answer» B. first gap | |
| 1297. |
The longest phase of meiosis is |
| A. | prophase II |
| B. | prophase I |
| C. | prophase III |
| D. | prophase IV |
| Answer» C. prophase III | |
| 1298. |
The apoptosis occurs in cells when it is |
| A. | releasing carbon dioxide |
| B. | transporting material |
| C. | respiring |
| D. | damaged |
| Answer» E. | |
| 1299. |
The examples of cells that do not enter the G0 phase during the life of an organism are |
| A. | granum cells |
| B. | epithelial cells |
| C. | epidermal cells |
| D. | stroma cells |
| Answer» C. epidermal cells | |
| 1300. |
The land plants that are not composed of xylem and phloem tissue are |
| A. | Volvox and ferns |
| B. | liverworts and mosses |
| C. | ferns and mosses |
| D. | mustard and cauliflower plants |
| Answer» C. ferns and mosses | |