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MCQOPTIONS
This section includes 1844 Mcqs, each offering curated multiple-choice questions to sharpen your Grade10 knowledge and support exam preparation. Choose a topic below to get started.
| 1201. |
Xerophytes have thick, waxy cuticle to reduce |
| A. | gas loss |
| B. | water loss |
| C. | mineral loss |
| D. | salts loss |
| Answer» C. mineral loss | |
| 1202. |
For insulating the human body, in the dermis, there is a layer of |
| A. | protein |
| B. | lipids |
| C. | fat |
| D. | starch |
| Answer» D. starch | |
| 1203. |
The maintenance of water and salts in the body is known as |
| A. | osmoregulation |
| B. | excretion |
| C. | respiration |
| D. | thermoregulations |
| Answer» B. excretion | |
| 1204. |
The non-electrical shock waves are used for |
| A. | kidney transplant |
| B. | lithotripsy |
| C. | kidney removal |
| D. | kidney replacement |
| Answer» C. kidney removal | |
| 1205. |
Blood carries carbon dioxide to |
| A. | heart |
| B. | liver |
| C. | kidney |
| D. | lungs |
| Answer» E. | |
| 1206. |
The material passes into Bowman's capsule is called |
| A. | tubular secretion |
| B. | selective reabsorption |
| C. | pressure filtration |
| D. | glomerular filtrate |
| Answer» E. | |
| 1207. |
Halophytes live in an environment that is |
| A. | acidic |
| B. | alkaline |
| C. | neutral |
| D. | salty |
| Answer» E. | |
| 1208. |
Succulent organs are present in |
| A. | xerophytes |
| B. | Mesophytes |
| C. | hydrophytes |
| D. | halophytes |
| Answer» B. Mesophytes | |
| 1209. |
The plants have broad leaves with a large number of stomata |
| A. | xerophytes |
| B. | Mesophytes |
| C. | hydrophytes |
| D. | halophytes |
| Answer» D. halophytes | |
| 1210. |
The kind of genotype in which two identical alleles are carried by a pair of the gene is called |
| A. | recessive genotype |
| B. | dominant genotype |
| C. | homozygous genotype |
| D. | heterozygous genotype |
| Answer» D. heterozygous genotype | |
| 1211. |
The process in which ribosome reads the sequence carried by mRNA and joins amino acids to form a protein is called |
| A. | segregation |
| B. | transcription |
| C. | denomination |
| D. | translation |
| Answer» E. | |
| 1212. |
Gene flow is the movement of genes from one |
| A. | community to other |
| B. | individual to other |
| C. | population to other |
| D. | ecosystem to other |
| Answer» D. ecosystem to other | |
| 1213. |
According to Mendel's law of inheritance, the kind of cross in which only one trait is studied is called |
| A. | tetra hybrid cross |
| B. | monohybrid cross |
| C. | dihybrid cross |
| D. | octane hybrid cross |
| Answer» C. dihybrid cross | |
| 1214. |
Considering the heterozygous genotype condition, the allele which is not expressed is called |
| A. | hybrid allele |
| B. | monohybrid allele |
| C. | dominant allele |
| D. | recessive allele |
| Answer» E. | |
| 1215. |
The ratio of phenotypes(round yellow seeds, round green seeds, wrinkled yellow seeds, and wrinkled green seeds) in Mendel's law of independent assortment of a pea plant is |
| A. | 7:4:3:2 |
| B. | 9:3:3:1 |
| C. | 8:4:3:1 |
| D. | 10:2:3:1 |
| Answer» C. 8:4:3:1 | |
| 1216. |
The notable work of Gregor Mendel is the development of principles of |
| A. | genetics |
| B. | skeletal structure |
| C. | muscular structure |
| D. | DNA structure |
| Answer» B. skeletal structure | |
| 1217. |
In natural selection, the variations are determined by |
| A. | humans |
| B. | plants |
| C. | animals |
| D. | environment |
| Answer» E. | |
| 1218. |
A gene is a part of |
| A. | Ribonucleic acid (RNA) |
| B. | cell |
| C. | Deoxyribonucleic acid (DNA) |
| D. | nucleus |
| Answer» D. nucleus | |
| 1219. |
The branch of biology which deals with the study of inheritance is called |
| A. | genetics |
| B. | environmental biology |
| C. | industrial biology |
| D. | microbiology |
| Answer» B. environmental biology | |
| 1220. |
Sound vibrations are produced when sounds waves are strike to |
| A. | ear drum |
| B. | auditory canal |
| C. | malleus |
| D. | stapes |
| Answer» B. auditory canal | |
| 1221. |
Which of the following is divided into four lobes? |
| A. | cerebellum |
| B. | cerebral hemisphere |
| C. | cerebral cortex |
| D. | hypothalamus |
| Answer» D. hypothalamus | |
| 1222. |
Occipital lobe receive and analyze the |
| A. | hearing information |
| B. | visual information |
| C. | reading information |
| D. | none of above |
| Answer» C. reading information | |
| 1223. |
In the human nervous system, the supporting cells present with neurons are classified as |
| A. | dendrite cells |
| B. | malign cells |
| C. | benign cells |
| D. | neuroglial cells |
| Answer» E. | |
| 1224. |
The function of an increase in the breakdown of food is caused by |
| A. | thyroxin |
| B. | calcitonin |
| C. | corticosteroids |
| D. | none of above |
| Answer» B. calcitonin | |
| 1225. |
The name of the chest bone in the axial skeleton of the human body is |
| A. | vertebrae |
| B. | sternum |
| C. | ulna |
| D. | ribs |
| Answer» C. ulna | |
| 1226. |
The skeleton of the human inside of the body is best classified as |
| A. | endo-collagen |
| B. | exoskeleton |
| C. | endoskeleton |
| D. | exo-collagen |
| Answer» D. exo-collagen | |
| 1227. |
Other than bones, the tissues that are packed with collagen fibers tightly are |
| A. | ligaments only |
| B. | lacuna only |
| C. | tendons |
| D. | ligaments and lacuna |
| Answer» E. | |
| 1228. |
During flexion of the elbow joint, the triceps muscle |
| A. | contracts |
| B. | relaxes |
| C. | remains same |
| D. | shrinks |
| Answer» C. remains same | |
| 1229. |
The number of bones in the skull are |
| A. | 18 bones |
| B. | 22 bones |
| C. | 25 bones |
| D. | 28 bones |
| Answer» B. 22 bones | |
| 1230. |
Which of the following causes unprovoked seizures in the patient? |
| A. | epilepsy |
| B. | paralysis |
| C. | stroke |
| D. | nervous disorder |
| Answer» B. paralysis | |
| 1231. |
The disorder in which thyroid gland enlarges is classified as |
| A. | parathyroidism |
| B. | hypothyroidism |
| C. | hyperthyroidism |
| D. | goitre |
| Answer» E. | |
| 1232. |
Over-production of thyroxin causes |
| A. | hypothyroidism |
| B. | hyperthyroidism |
| C. | goitre |
| D. | acromegaly |
| Answer» C. goitre | |
| 1233. |
Considering the inability of day time blindness, the owl can see at night because of the presence of |
| A. | retina |
| B. | cones |
| C. | rods |
| D. | fovea |
| Answer» D. fovea | |
| 1234. |
What type of disorder, Paralysis is? |
| A. | nervous disorder |
| B. | functional disorder |
| C. | vascular disorder |
| D. | psychological disorder |
| Answer» D. psychological disorder | |
| 1235. |
The part of the angiosperm seed which protects the embryo from drying out is called |
| A. | tissue coat |
| B. | spores coat |
| C. | endosperm coat |
| D. | seed coat |
| Answer» E. | |
| 1236. |
Daughter cells formed due to division of a cell in sporangium are called |
| A. | daughter sporangium |
| B. | spores |
| C. | cysts |
| D. | sperms |
| Answer» C. cysts | |
| 1237. |
External fertilization mostly occur in |
| A. | desert plants |
| B. | aquatic plants |
| C. | grassy plants |
| D. | land plants |
| Answer» C. grassy plants | |
| 1238. |
After the structural changes in the spermatids, the spermatids converts into |
| A. | spermatogonia |
| B. | sperms |
| C. | egg cells |
| D. | spermatocytes |
| Answer» C. egg cells | |
| 1239. |
The double fertilization involves the |
| A. | formation of two nuclei |
| B. | secretion of two nuclei |
| C. | fusion of two nuclei |
| D. | fusion of three nuclei |
| Answer» D. fusion of three nuclei | |
| 1240. |
A muscular passage that is common to both food and air is called |
| A. | Oesophagus |
| B. | trachea |
| C. | larynx |
| D. | pharynx |
| Answer» E. | |
| 1241. |
In the chest wall, the rib muscles are considered as |
| A. | intercostal muscles |
| B. | coastal muscles |
| C. | preliminary muscles |
| D. | pulmonary muscles |
| Answer» B. coastal muscles | |
| 1242. |
In the air passageway, the incoming air passes from the pharynx to the |
| A. | mucous |
| B. | glottis |
| C. | bronchi |
| D. | larynx |
| Answer» E. | |
| 1243. |
The process through which organisms get oxygen for their cells from their surrounding environment is classified as |
| A. | gaseous exchange |
| B. | respiratory exchange |
| C. | cellular respiration |
| D. | breathing |
| Answer» C. cellular respiration | |
| 1244. |
The larynx a box is made up of |
| A. | fibril |
| B. | cartilage |
| C. | fibril cartilage |
| D. | fibrinogen |
| Answer» C. fibril cartilage | |
| 1245. |
The muscular ring formed by the bending of the choroid is called |
| A. | ciliary muscles |
| B. | choroid |
| C. | iris |
| D. | pupil |
| Answer» D. pupil | |
| 1246. |
Considering the human ear structure, the external ear is comprised of |
| A. | stapes and pinna |
| B. | malleus and auditory canal |
| C. | incus and stapes |
| D. | pinna and eardrum |
| Answer» E. | |
| 1247. |
In the somatic nervous system, the motor carry impulses to skeletal muscles from |
| A. | central nervous system |
| B. | reflexive nervous system |
| C. | autonomic nervous system |
| D. | ventral nervous system |
| Answer» B. reflexive nervous system | |
| 1248. |
The kind of feedback in which the output of procedure increases the process rate is called |
| A. | positive feedback |
| B. | reverse feedback |
| C. | negative feedback |
| D. | multidirectional feedback |
| Answer» B. reverse feedback | |
| 1249. |
Which part of the brain is responsible for making new memories? |
| A. | hypothalamus |
| B. | thalamus |
| C. | hippocampus |
| D. | medulla |
| Answer» D. medulla | |
| 1250. |
The buds of the rhizomes are produced at |
| A. | shoots |
| B. | roots |
| C. | stems |
| D. | nodes |
| Answer» E. | |