MCQOPTIONS
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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.
| 1251. |
Individual units of the calyx are called |
| A. | petals |
| B. | sepals |
| C. | leaflets |
| D. | corolla |
| Answer» C. leaflets | |
| 1252. |
The group of animals that follows the procedure of internal fertilization includes |
| A. | reptiles |
| B. | birds |
| C. | mammals |
| D. | all of above |
| Answer» E. | |
| 1253. |
In ovaries, the production of egg cells is classified as |
| A. | primary oogonia |
| B. | gametogenesis |
| C. | oogenesis |
| D. | spermatogenesis |
| Answer» D. spermatogenesis | |
| 1254. |
Considering the wind-pollinated and insect-pollinated flowers, the flowers that are pollinated by wind |
| A. | have pinhead shape branches |
| B. | have upward facing flowers |
| C. | do not produce nectar |
| D. | are large in size |
| Answer» D. are large in size | |
| 1255. |
The specialized organs in which egg cells or sperms are produced are called |
| A. | gonads |
| B. | testes |
| C. | ovaries |
| D. | sperms |
| Answer» B. testes | |
| 1256. |
In flowers, the outer whorls are classified as |
| A. | haploid whorls |
| B. | diploid whorls |
| C. | non-reproductive whorls |
| D. | reproductive whorls |
| Answer» D. reproductive whorls | |
| 1257. |
The ratio of fluid and sperms (respectively) in semen is |
| A. | 85% and 15% |
| B. | 75% and 25% |
| C. | 90% and 10% |
| D. | 70% and 30% |
| Answer» D. 70% and 30% | |
| 1258. |
Considering the whorls of plants, the gynoecium is classified as |
| A. | fourth whorl |
| B. | third whorl |
| C. | second whorl |
| D. | first whorl |
| Answer» B. third whorl | |
| 1259. |
The process which undergoes in secondary spermatocytes is classified as |
| A. | meiosis-II |
| B. | meiosis-I |
| C. | mitosis-II |
| D. | mitosis-I |
| Answer» B. meiosis-I | |
| 1260. |
The seeds that are ripe but do not germinate are called |
| A. | dormant seeds |
| B. | ovular seeds |
| C. | haploid seeds |
| D. | diploid seeds |
| Answer» B. ovular seeds | |
| 1261. |
The plants that reproduce through the tubers are |
| A. | dasheen and garlic |
| B. | yams and potatoes |
| C. | onion and potatoes |
| D. | onion and dasheen |
| Answer» C. onion and potatoes | |
| 1262. |
The production of the individuals of the same genus is called |
| A. | reproduction |
| B. | fission offspring |
| C. | fragmented offspring |
| D. | budded offspring |
| Answer» B. fission offspring | |
| 1263. |
The units of the fourth whorl of the flower are known as |
| A. | ovules |
| B. | macrospore |
| C. | stigma |
| D. | carpel |
| Answer» E. | |
| 1264. |
The endosperm is rich in starch and |
| A. | proteins |
| B. | lipids |
| C. | carbohydrates |
| D. | sugar |
| Answer» B. lipids | |
| 1265. |
The thalamus which is present in forebrain serves as a relay center between |
| A. | ganglion and neuroglial |
| B. | cranium and meninges |
| C. | skeletal muscles and endocrine glands |
| D. | spinal cord and brain |
| Answer» E. | |
| 1266. |
The body parts which detect the particular part of stimuli is |
| A. | detector |
| B. | response |
| C. | receptor |
| D. | action |
| Answer» D. action | |
| 1267. |
Considering the disorders of the eye, the short sight disorder is also known as |
| A. | rhodopsin optic disorder |
| B. | eye fovea |
| C. | hypermetropia |
| D. | myopia |
| Answer» E. | |
| 1268. |
The external part of the ear that direct the sound waves are |
| A. | ear drum |
| B. | pinna |
| C. | auditory canal |
| D. | cochlea |
| Answer» C. auditory canal | |
| 1269. |
Which of the following is a union of many axons that are enveloped by a covering made of lipid? |
| A. | ganglion |
| B. | nerve impulse |
| C. | neuron |
| D. | nerve impulse |
| Answer» E. | |
| 1270. |
The name of cardiotonic which stimulates the heart is |
| A. | streptomycin |
| B. | aspirin |
| C. | terramycin |
| D. | digitalis |
| Answer» E. | |
| 1271. |
The special protein of pathogens is |
| A. | antiseptics |
| B. | antigens |
| C. | anti vaccines |
| D. | anti pathogens |
| Answer» C. anti vaccines | |
| 1272. |
Long term use of sedative induce |
| A. | emotional feelings |
| B. | stomach cancer |
| C. | loss of memory |
| D. | suicidal thoughts |
| Answer» E. | |
| 1273. |
The psilocin (a group of hallucinogens) comes from |
| A. | mushroom |
| B. | foxglove |
| C. | flowers of cannabis |
| D. | cactus |
| Answer» B. foxglove | |
| 1274. |
The study of drug properties, composition, and medical applications is called |
| A. | botany |
| B. | pharmacology |
| C. | paleontology |
| D. | ecology |
| Answer» C. paleontology | |
| 1275. |
A tubular bundle of nerves is |
| A. | pons |
| B. | spinal cord |
| C. | grey matter |
| D. | peripheral nervous system |
| Answer» C. grey matter | |
| 1276. |
Eyes are prevented from dehydration and are wiped by |
| A. | eye layers |
| B. | optic nerves |
| C. | retina |
| D. | eyelids |
| Answer» E. | |
| 1277. |
Considering the spinal and cranial nerves, the pathway which conducts impulses to effectors from the central nervous system is classified as |
| A. | parietal pathways |
| B. | sensory pathways |
| C. | motor pathways |
| D. | temporal pathways |
| Answer» D. temporal pathways | |
| 1278. |
The wave which travels along the neurons and is based on electrochemical changes is called |
| A. | nerve impulse |
| B. | cell body |
| C. | papillary impulse |
| D. | axons |
| Answer» B. cell body | |
| 1279. |
Change in an environment which can provoke a response in an organism is called |
| A. | effector |
| B. | coordinator |
| C. | stimuli |
| D. | receptor |
| Answer» D. receptor | |
| 1280. |
The eye portion responsible for color vision and sharpness is |
| A. | rods |
| B. | cones |
| C. | optic disc |
| D. | fovea |
| Answer» E. | |
| 1281. |
The cornea and sclera comprises the |
| A. | outer layer of eyeball |
| B. | middle layer of eyeball |
| C. | innermost layer of eyeball |
| D. | whole eyeball |
| Answer» B. middle layer of eyeball | |
| 1282. |
In the male, the testosterone hormone is secreted by |
| A. | pancreas |
| B. | kidneys |
| C. | ovaries |
| D. | testes |
| Answer» C. ovaries | |
| 1283. |
Which of the following contracts in iris during dim light? |
| A. | radial muscles |
| B. | circular muscles |
| C. | ciliary muscles |
| D. | none of above |
| Answer» B. circular muscles | |
| 1284. |
The types of coordination in organisms include |
| A. | chemical coordination only |
| B. | nervous coordination only |
| C. | bio-chemical coordination |
| D. | chemical and nervous coordination |
| Answer» E. | |
| 1285. |
The cochlea is the part of the? |
| A. | mid ear |
| B. | outer ear |
| C. | inner ear |
| D. | none of above |
| Answer» D. none of above | |
| 1286. |
Which of the following is the coordinator in nervous coordination? |
| A. | muscle |
| B. | hormone |
| C. | neuron |
| D. | brain |
| Answer» E. | |
| 1287. |
Neuroglial cells of the nervous system perform the function of |
| A. | movement |
| B. | response |
| C. | support |
| D. | conduction |
| Answer» D. conduction | |
| 1288. |
In the peripheral nervous system, the nerves that lead to spinal cord and brain are called |
| A. | cranial nerves |
| B. | spinal nerves |
| C. | frontal nerves |
| D. | temporal nerves |
| Answer» C. frontal nerves | |
| 1289. |
The number of spinal nerves along the spinal cord is |
| A. | 30 |
| B. | 38 |
| C. | 32 |
| D. | 31 |
| Answer» E. | |
| 1290. |
The human body synthesizes rhodopsin from a vitamin named |
| A. | vitamin c |
| B. | vitamin d |
| C. | vitamin a |
| D. | vitamin b |
| Answer» B. vitamin d | |
| 1291. |
The grey matter of cerebral cortex consists of |
| A. | non-myelinated dendrites |
| B. | non-myelinated axons |
| C. | myelinated axons |
| D. | myelinated dendrites |
| Answer» C. myelinated axons | |
| 1292. |
Examples of effectors are muscles and |
| A. | glands |
| B. | bones |
| C. | joints |
| D. | organs |
| Answer» B. bones | |
| 1293. |
Along the spinal cord, the pairs of spinal nerves are |
| A. | 29 pairs |
| B. | 31 pairs |
| C. | 33 pairs |
| D. | 35 pairs |
| Answer» C. 33 pairs | |
| 1294. |
Which of the following are collectively called the brain stem? |
| A. | thalamus, hypothalamus and midbrain |
| B. | cerebellum, pons and medulla oblongata |
| C. | medulla oblongata, pons and midbrain |
| D. | thalamus, hypothalamus and medulla |
| Answer» D. thalamus, hypothalamus and medulla | |
| 1295. |
The spore formation type of asexual reproduction is usually adopted by |
| A. | corals |
| B. | hydra |
| C. | Rhizopus |
| D. | sporangium |
| Answer» D. sporangium | |
| 1296. |
The technique through which identical offsprings are produced from a single parent using its vegetative cell is called |
| A. | tissue culture |
| B. | cutting |
| C. | grafting |
| D. | none of above |
| Answer» B. cutting | |
| 1297. |
After the growth of the pollen tube through style and ovary, the pollen tube enters into |
| A. | haploid nucleus |
| B. | ovule |
| C. | style |
| D. | zygote |
| Answer» C. style | |
| 1298. |
The transfer of pollen grains from the anther to the stigma of the same flower is called |
| A. | cross pollination |
| B. | insect pollination |
| C. | wind pollination |
| D. | self pollination |
| Answer» E. | |
| 1299. |
The buds that are present on the rhizomes upper surface are responsible to give rise to the |
| A. | shoots |
| B. | roots |
| C. | stems |
| D. | nodes |
| Answer» B. roots | |
| 1300. |
Which of the following services to attract bees, birds, etc.? |
| A. | sepals |
| B. | petals |
| C. | calyx |
| D. | corolla |
| Answer» C. calyx | |