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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.
| 1201. |
Coordinating tissues combine to form |
| A. | organs |
| B. | cells |
| C. | tissues |
| D. | organ system |
| Answer» B. cells | |
| 1202. |
The study in which structures and functions of cell and cell organelles are discussed is called |
| A. | cell biology |
| B. | physiology |
| C. | genetics |
| D. | parasitology |
| Answer» B. physiology | |
| 1203. |
Drastic and long-lasting effects will result in a small change in |
| A. | biotic factors only |
| B. | abiotic factors only |
| C. | environmental factors |
| D. | biotic and abiotic factors |
| Answer» E. | |
| 1204. |
The cells are also known as |
| A. | units of life |
| B. | structural molecules |
| C. | covalent molecules |
| D. | ionic molecules |
| Answer» B. structural molecules | |
| 1205. |
The phloem in plants acts as |
| A. | two way street for food |
| B. | one way street for food |
| C. | three way street for food |
| D. | four way street for food |
| Answer» B. one way street for food | |
| 1206. |
The number of platelets in one cubic millimeter of blood is |
| A. | 100000 |
| B. | 150000 |
| C. | 250000 |
| D. | 350000 |
| Answer» D. 350000 | |
| 1207. |
The process of transferring blood from the circulatory system of one person to another person is classified as |
| A. | binary fission |
| B. | transfusion |
| C. | diffusion |
| D. | osmosis |
| Answer» B. transfusion | |
| 1208. |
The chemical that inhibits the clotting of blood is |
| A. | antidepressant |
| B. | anti-allergen |
| C. | anti-perseverant |
| D. | anticoagulant |
| Answer» E. | |
| 1209. |
The blood groups in human blood group systems are |
| A. | 29 |
| B. | 35 |
| C. | 23 |
| D. | 19 |
| Answer» B. 35 | |
| 1210. |
The energy released by the breakdown of one phosphate bond is |
| A. | 5.8 kcal |
| B. | 7.3 kcal |
| C. | 8.3 kcal |
| D. | 9.2 kcal |
| Answer» C. 8.3 kcal | |
| 1211. |
The bonds present in fuel molecules that are broke down by oxygen in the burning process are |
| A. | C-H bonds |
| B. | D-H bonds |
| C. | M-H bonds |
| D. | O-H bonds |
| Answer» B. D-H bonds | |
| 1212. |
The rate of photosynthesis becomes constant in |
| A. | lower level of red light |
| B. | higher light intensity |
| C. | lower light intensity |
| D. | higher level of red light |
| Answer» C. lower light intensity | |
| 1213. |
The direct source of energy in the life processes of life is |
| A. | catabolize reaction |
| B. | anatomize reaction |
| C. | redox reaction |
| D. | saturated reaction |
| Answer» D. saturated reaction | |
| 1214. |
The phase of photosynthesis in which energy from molecules is utilized is |
| A. | second phase |
| B. | first phase |
| C. | third phase |
| D. | forth phase |
| Answer» B. first phase | |
| 1215. |
Group of plants which belong to the same class is called |
| A. | phylum |
| B. | order |
| C. | family |
| D. | specie |
| Answer» B. order | |
| 1216. |
Hazarganji national park is located in |
| A. | Karachi |
| B. | Quetta |
| C. | Lahore |
| D. | Islamabad |
| Answer» C. Lahore | |
| 1217. |
The breeding of same species produces |
| A. | fertile offspring |
| B. | infertile offspring |
| C. | young ones |
| D. | identical offspring |
| Answer» B. infertile offspring | |
| 1218. |
The name of the genus to which humans belongs is |
| A. | pisum |
| B. | tigrina |
| C. | homo |
| D. | zoraptera |
| Answer» D. zoraptera | |
| 1219. |
Earth has diversity because of the evolution of |
| A. | 4 billion years |
| B. | 2 billion years |
| C. | 1 billion years |
| D. | 5 billion years |
| Answer» B. 2 billion years | |
| 1220. |
Natural forests are being taken care of by professionals of |
| A. | forestry |
| B. | farming |
| C. | agriculture |
| D. | horticulture |
| Answer» B. farming | |
| 1221. |
The bio-elements are combined instead of isolation through |
| A. | ionic bonding only |
| B. | covalent bonding only |
| C. | micro bonding |
| D. | ionic and covalent bonding |
| Answer» E. | |
| 1222. |
The mustard plant is obtained at the end season of |
| A. | winter |
| B. | autumn |
| C. | summer |
| D. | spring |
| Answer» B. autumn | |
| 1223. |
Relative performing organs are collectively known as |
| A. | organs |
| B. | cells |
| C. | tissues |
| D. | organ system |
| Answer» E. | |
| 1224. |
The assembling of organelles leads to the formation of |
| A. | atoms |
| B. | molecules |
| C. | cells |
| D. | tissues |
| Answer» D. tissues | |
| 1225. |
The growth of lateral meristems is also known as |
| A. | primary growth |
| B. | secondary growth |
| C. | tertiary growth |
| D. | epidermal growth |
| Answer» C. tertiary growth | |
| 1226. |
The types of permanent tissues do not includes |
| A. | epidermal tissues |
| B. | xylem tissues |
| C. | support tissues |
| D. | ground tissues |
| Answer» C. support tissues | |
| 1227. |
The muscles whose contraction is under our control are |
| A. | skeletal muscles |
| B. | nerve muscles |
| C. | epidermal muscles |
| D. | xylem muscles |
| Answer» B. nerve muscles | |
| 1228. |
The biochemical reactions and proper functioning of organelles takes place in |
| A. | cytoplasm |
| B. | nucleus |
| C. | Golgi complex |
| D. | vacuoles |
| Answer» B. nucleus | |
| 1229. |
The composition of cell membrane consists of |
| A. | lipids and proteins |
| B. | sugar and salts |
| C. | magnesium and potassium |
| D. | chorine and hydrogen |
| Answer» B. sugar and salts | |
| 1230. |
Conclusions are drawn by the help of |
| A. | statistical analysis |
| B. | deductions |
| C. | observation |
| D. | experimentation |
| Answer» B. deductions | |
| 1231. |
The first step of the biological method of problem-solving is |
| A. | experimentation |
| B. | summarization |
| C. | deductions |
| D. | recognition of biological problem |
| Answer» E. | |
| 1232. |
When two ratios are joined together with the help of sign of equality then this expression is classified as |
| A. | geometry |
| B. | algebra |
| C. | algorithm |
| D. | proportion |
| Answer» E. | |
| 1233. |
A method in which biological problems are solved is known as |
| A. | biological method |
| B. | complex method |
| C. | physical method |
| D. | chemical method |
| Answer» B. complex method | |
| 1234. |
The problems of biology for which mathematical knowledge is needed includes |
| A. | protein structure |
| B. | gene finding |
| C. | protein-protein interactions |
| D. | all of above |
| Answer» E. | |
| 1235. |
The German Zoologist who reported that all tissues are made up of individual cells is |
| A. | Nicolas Badin |
| B. | Rudolf Virchow |
| C. | Mathias Schleiden |
| D. | Theodor Schwann |
| Answer» E. | |
| 1236. |
Cytoplasmic connections within walls of neighboring cells are called |
| A. | plasmodesmata |
| B. | stomata |
| C. | vacuoles |
| D. | mitochondrion |
| Answer» B. stomata | |
| 1237. |
The cell membrane of cells is also known as |
| A. | carbon membrane |
| B. | endoplasmic membrane |
| C. | plasma membrane |
| D. | lipid membrane |
| Answer» D. lipid membrane | |
| 1238. |
The centrioles can also be responsible for the formation of |
| A. | mosses and ferns |
| B. | ferns and cilia |
| C. | mosses and cilia |
| D. | flagella and cilia |
| Answer» E. | |
| 1239. |
The magnifying range of first compound microscope is |
| A. | 10X to 25X |
| B. | 5X to 20X |
| C. | 3X to 9X |
| D. | 3X to 15X |
| Answer» D. 3X to 15X | |
| 1240. |
The vital vitamins that play a role as coenzymes do not include |
| A. | salicylic acid |
| B. | thiamine |
| C. | riboflavin |
| D. | folic acid |
| Answer» B. thiamine | |
| 1241. |
The model who proposed that the active site is molded in the required shape for performing the function is |
| A. | induced-fit model |
| B. | reduced-fit model |
| C. | anabolism-fit model |
| D. | catabolism-fit model |
| Answer» B. reduced-fit model | |
| 1242. |
The lock and key model proposed by Emil Fischer explains the |
| A. | Specifity of enzyme |
| B. | viscosity of enzyme |
| C. | saturation of enzyme |
| D. | nature of enzyme |
| Answer» B. viscosity of enzyme | |
| 1243. |
The factors that can affect the rate of actions of enzymes includes |
| A. | substrate concentration |
| B. | pH |
| C. | temperature |
| D. | all of above |
| Answer» E. | |
| 1244. |
The meaning of the Greek word 'metabolism' is |
| A. | respire |
| B. | digest |
| C. | change |
| D. | cross over |
| Answer» D. cross over | |
| 1245. |
The place of photosynthesis in the eukaryotes is |
| A. | thylakoids |
| B. | leucoplasts |
| C. | chloroplasts |
| D. | chromoplast |
| Answer» D. chromoplast | |
| 1246. |
The number of infolding that are formed in the inner membrane is classified as |
| A. | actin |
| B. | lignin |
| C. | cristae |
| D. | tubulin |
| Answer» D. tubulin | |
| 1247. |
The usage of the microscope is considered as |
| A. | microscopy |
| B. | lithoscopy |
| C. | endoscopy |
| D. | angiography |
| Answer» B. lithoscopy | |
| 1248. |
The cell membrane of cells is useful in controlling its |
| A. | pH composition |
| B. | internal composition |
| C. | external composition |
| D. | acidic composition |
| Answer» C. external composition | |
| 1249. |
In plants, the xylem tissues carry the dissolved substances from |
| A. | leaves to roots |
| B. | lateral parts to roots |
| C. | roots to aerial parts |
| D. | shoots to aerial parts |
| Answer» D. shoots to aerial parts | |
| 1250. |
Considering the electron microscope, 1 nm is equal to |
| A. | 1/1000, 0000 mm |
| B. | 1/1000, 000 mm |
| C. | 1/800, 000 mm |
| D. | 1/10, 000 mm |
| Answer» C. 1/800, 000 mm | |