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MCQOPTIONS
This section includes 1489 Mcqs, each offering curated multiple-choice questions to sharpen your 8th Class knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Refer to the given figure. Identify the labelled parts (P - S) and select the correct option. |
| A. | PQRSSite of gamete productionSite of fertilisationSite of embryo developmentPassage of sperm |
| B. | PQRSSite of gamete productionPassage of spermSite of embryo developmentSite of fertilisation |
| C. | PQRSSite of embryo developmentSita of gamete productionSite of fertilisationPassage of sperm |
| D. | PQRSSite of fertilisationSite of gamete productionSite of embryo developmentPassage of sperm |
| Answer» B. PQRSSite of gamete productionPassage of spermSite of embryo developmentSite of fertilisation | |
| 202. |
Which of the following is a mismatched pair? Endocrine gland Hormone |
| A. | Ovaries - Estrogen |
| B. | Testes - Testosterone |
| C. | Pancreas - Calcitonin |
| D. | Adrenal glands - Adrenaline |
| Answer» D. Adrenal glands - Adrenaline | |
| 203. |
Read the following statements and select the correct option. (i) A daughter receives X-chromosome from her mother only. (ii) Human beings possess 22 pairs of autosomes and 1 pair of sex chromosomes. (iii) In mammals, embryo develops outside the mother's body. (iv) A new human individual develops from a cell called gamete. (v) Pituitary gland produces thyroid-stimulating hormone (TSH), which stimulates the thyroid to produce thyroxine. (vi) A zygote is formed as a result of fertilisation. |
| A. | Statements (i), (iii) and (iv) are incorrect, while statements (ii), (v) and (vi) are correct. |
| B. | Statements (i) and (iii) are incorrect while statements (ii), (iv), (v) and (vi) are correct. |
| C. | Statements (iii) and (iv) are incorrect, while statements (i), (ii), (v) and (vi) are correct. |
| D. | Statements (iii) and (v) are incorrect, while statements (i), (ii), (iv) and (vi) are correct. |
| Answer» B. Statements (i) and (iii) are incorrect while statements (ii), (iv), (v) and (vi) are correct. | |
| 204. |
Refer to the given figures, P and Q. How do reproductive cells produced in P differ from those produced in Q in terms of production and their modes of storage? |
| A. | Mature cells of P can get stored for longer periods in reproductive tract whereas in Q, only immature cells remain stored. |
| B. | P produces fewer reproductive cells than Q does. |
| C. | Reproductive cells produced by P do not show motility. |
| D. | Q produces reproductive cells for a longer period in an individual's life span than P does. |
| Answer» B. P produces fewer reproductive cells than Q does. | |
| 205. |
Match column I (Gland) with column II (Hormone secreted) and column III (Function/Action) and select the correct option from the codes given below. Column I Column II Column III(a)Pituitary(i)Adrenaline(p)It control the activities of the other glands(b)Thyroid(ii)Growth hormone(Q)It prepares the body to fight or run fast when needed.(c)Adrenal gland(iii)Thyroxine(R)It control the female secondary sexual characteristics.(d)Pancrease(iv)(insulin(S)It regulates the metabolic rate and growth.(e)Ovary(v)Testosterone(T)It regulates sugar metabolism(f)Testis(vi)Estrogen(U)It controls the male secondary sexual characteristics. |
| A. | (a)-(ii)-(P);(b)-(iii)-(S);(c)-(i)-(Q);(d)-(iv)-(T);(e)-(vi)-(R);(f)-(v)-(U) |
| B. | (a)-(iv)-(P);(b)-(iii)-(S);(c)-(i)-(Q);(d)-(ii)-(T);(e)-(vi)-(R);(f)-(v)-(U) |
| C. | (a)-(ii)-(S);(b)-(i)-(P);(c)-(iii)-(Q);(d)-(iv)-(T);(e)-(v)-(R);(f)-(vi)-(U) |
| D. | (a)-(ii)-(P);(b)-(iii)-(Q);(c)-(i)-(R);(d)-(v)-(S);(e)-(iv)-(T);(f)-(vi)-(U) |
| Answer» B. (a)-(iv)-(P);(b)-(iii)-(S);(c)-(i)-(Q);(d)-(ii)-(T);(e)-(vi)-(R);(f)-(v)-(U) | |
| 206. |
Read the given paragraph, where few words have been italicised.The pineal gland secretes a hormone progesterone which helps to regulate sleep pattern. Thyroid glands release hormone which regulate the level of calcium in the blood with the help of calcitonin which is produced in the parathyroid glands.Select the correct option regarding the given paragraph.(i) Positions of pineal and parathyroid should be interchanged.(ii) Progesterone should be replaced by melatonin.(iii) Parathyroid should not be replaced as it is correctly mentioned.(iv) Positions of progesterone and calcitonin should be interchanged.(v) Positions of thyroid and parathyroid should be interchanged. |
| A. | (ii) and (v) only |
| B. | (i), (ii) and (v) only |
| C. | (i) and (iii) only |
| D. | (ii) and (iv) only |
| Answer» B. (i), (ii) and (v) only | |
| 207. |
Feeling the tremors of an earthquake, a scared resident of thirteenth floor of a multistoreyed building starts climbing down the stairs rapidly. Which hormone initiated this action? |
| A. | Oxytocin |
| B. | Thyroxine |
| C. | Adrenaline |
| D. | Progesterone |
| Answer» D. Progesterone | |
| 208. |
Which of the following statements are incorrect regarding a test tube baby? (i) It is developed wholly in a test tube. (ii) It is developed through tissue culture method. (iii) The ovum is fertilised externally and thereafter implanted in the uterus. (iv) It develops from an unfertilised egg. |
| A. | (i) and (iv) only |
| B. | (ii) and (iv) only |
| C. | (i) and (iii) only |
| D. | (i), (ii) and (iv) only |
| Answer» E. | |
| 209. |
Read the given statements and select the correct option. Statement 1: In human male, testes lie outside the abdominal cavity in a thin pouch called scrotum. Statement 2: Scrotum helps in maintaining the low temperature of the testes necessary for spermatogenesis. |
| A. | Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. |
| B. | Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. |
| C. | Statement 1 is true but statement 2 is false. |
| D. | Both statements 1 and 2 are false. |
| Answer» B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. | |
| 210. |
The given figure represents the location of various endocrine glands in human body. Identify the glands marked as P, Q, R, S and T and select the incorrect statement regarding these. |
| A. | Gland P secretes the hormone thyroxine, which regulates growth and metabolism. |
| B. | Gland Q secretes the hormones corticosteroids and adrenaline, which regulate breathing, heart rate, carbohydrate metabolism and mineral balance. |
| C. | Glands S and T secrete the hormones which control secondary sexual characters in females and males respectively. |
| D. | Gland R secretes the hormone insulin, whose increased concentration leads to diabetes. |
| Answer» E. | |
| 211. |
Refer to the given figure and select the incorrect statement regarding this. |
| A. | P represents the human male gamete which consists of head, middle-piece and tail. |
| B. | Q represents the human female gamete which is a single cell. |
| C. | The process shown in the figure is fertilisation. |
| D. | The resulting structure formed after the shown process is fetus. |
| Answer» E. | |
| 212. |
Which of the following is a correct sequence of events that occur in human reproduction? |
| A. | Gametogenesis \[\to \] Gestation \[\to \] Insemination \[\to \] Fertilisation \[\to \] Implantation \[\to \] Parturition |
| B. | Gametogenesis \[\to \] Insemination \[\to \] Fertilisation \[\to \] Implantation \[\to \] Gestation \[\to \] Parturition |
| C. | Gametogenesis \[\to \] Insemination \[\to \] Gestation \[\to \] Fertilisation \[\to \] Implantation \[\to \] Parturition |
| D. | Gestation \[\to \] Gametogenesis \[\to \] Insemination \[\to \] Implantation \[\to \] Fertilisation \[\to \] Parturition |
| Answer» C. Gametogenesis \[\to \] Insemination \[\to \] Gestation \[\to \] Fertilisation \[\to \] Implantation \[\to \] Parturition | |
| 213. |
Which one of the following statements is correct about reproduction humans? |
| A. | Fertilisation takes place externally. |
| B. | Fertilisation takes place asexually. |
| C. | Fertilisation takes place internally. |
| D. | Fertilisation takes place through fragmentation. |
| E. | None of these |
| Answer» D. Fertilisation takes place through fragmentation. | |
| 214. |
Real reproductive organ in females is: |
| A. | Vagina |
| B. | Cervix |
| C. | Ovary |
| D. | estes |
| E. | None of these |
| Answer» D. estes | |
| 215. |
Frog lays hundreds of eggs at a time in water because: |
| A. | It increases the chances of survival. |
| B. | Eggs are brown in colour. |
| C. | Frogs can reproduce only once in their life. |
| D. | All the above |
| E. | None of these |
| Answer» B. Eggs are brown in colour. | |
| 216. |
Match the following: Column A Column B (i) Amoeba [A] Budding (ii) Hydra [B] Sexual reproduction (iii) Bryophyllum [C] Vegetative propagation (iv) Birds [D] Binary fission |
| A. | (i - D), (ii - C), (iii - A), (iv - B) |
| B. | (i - D), (ii - A), (iii - C), (iv - B) |
| C. | (i - A), (ii - D), (iii - C), (iv - B) |
| D. | (i - C), (ii - A), (iii - D), (iv - B) |
| E. | None of these |
| Answer» C. (i - A), (ii - D), (iii - C), (iv - B) | |
| 217. |
Hormone which controls metamorphosis in frogs is: |
| A. | Adrenaline |
| B. | Testosterone |
| C. | Growth hormone |
| D. | Thyroxin |
| E. | None of these |
| Answer» E. None of these | |
| 218. |
The pituitary gland is located _____. |
| A. | In the stomach |
| B. | Near the sex organs |
| C. | Above the kidneys |
| D. | At the base of the brain |
| E. | None of these |
| Answer» E. None of these | |
| 219. |
Which one of the following female hormone helps in the development of mammary gland? |
| A. | Thyroxin |
| B. | Estrogen |
| C. | Insulin |
| D. | Testosterone |
| E. | None of these |
| Answer» C. Insulin | |
| 220. |
Name the hormone which prepares the endometrium for potential implantation of an embryo. |
| A. | Thyroxin |
| B. | Testosterone |
| C. | Progesterone |
| D. | Insulin |
| E. | None of these |
| Answer» D. Insulin | |
| 221. |
The changes occur in body during adolescence mark the onset of : |
| A. | Post adolescence |
| B. | Puberty |
| C. | Ageing |
| D. | Prematurity |
| E. | None of these |
| Answer» C. Ageing | |
| 222. |
Sex of a baby can be determined by _____ present in a cell. |
| A. | Mitochondria |
| B. | Nucleoplasm |
| C. | Chromosome |
| D. | Cytoplasm |
| E. | None of these |
| Answer» D. Cytoplasm | |
| 223. |
Match the following: Column A Column B (i) Estrogen [A] Exocrine gland (ii) Testosterone [B] Pancreas (iii) Saliva [C] Testes (iv) Insulin [D] Ovaries |
| A. | (i - B), (ii - C), (iii - D), (iv - A) |
| B. | (i - D), (ii - C), (iii - A), (iv - B) |
| C. | (i - D), (ii - A), (iii - B), (iv - C) |
| D. | (i - C), (ii - B), (iii - D), (iv - A) |
| E. | None of these |
| Answer» C. (i - D), (ii - A), (iii - B), (iv - C) | |
| 224. |
The process which ensures continuity of life on earth is: |
| A. | Hydrolysis |
| B. | Reproduction |
| C. | Digestion |
| D. | Excretion |
| E. | None of these |
| Answer» C. Digestion | |
| 225. |
The main changes that occurs in girls during puberty are: (i) Development of Adam's apple. (ii) Development of shrill voice. (iii) Production of testosterone increases. (iv) Hips become broaden and become more curved. |
| A. | (i) and (ii) |
| B. | (ii) and (iii) |
| C. | (ii) and (iv) |
| D. | (iii) and (iv) |
| E. | None of these |
| Answer» D. (iii) and (iv) | |
| 226. |
Choose the correct sequence of sperm movement in human body. |
| A. | Epididymis \[\to \] Vas deferens \[\to \] Urethra \[\to \] Penis |
| B. | Epididymis \[\to \] Vas deferens \[\to \] Urethra \[\to \] Penis |
| C. | Epididymis \[\to \] Urethra \[\to \] Vas deferens \[\to \] Penis |
| D. | Penis \[\to \] Urethra \[\to \] Epididymis \[\to \] Penis |
| E. | None of these |
| Answer» C. Epididymis \[\to \] Urethra \[\to \] Vas deferens \[\to \] Penis | |
| 227. |
Which one of the following is not an endocrine gland? |
| A. | Pituitary gland |
| B. | Sweat gland |
| C. | Thyroid gland |
| D. | Adrenal gland |
| E. | None of these |
| Answer» C. Thyroid gland | |
| 228. |
____ reproduces by splitting into two. |
| A. | Mosquito |
| B. | Frog |
| C. | Amoeba |
| D. | Butterfly |
| E. | None of these |
| Answer» D. Butterfly | |
| 229. |
Which one among the following is a hermaphrodite? |
| A. | Dog |
| B. | Cat |
| C. | Earthworm |
| D. | Frog |
| E. | None of these |
| Answer» D. Frog | |
| 230. |
A bulb like projection grown on hydra is known as: |
| A. | Gamete |
| B. | Bud |
| C. | Villi |
| D. | Spore |
| E. | None of these |
| Answer» C. Villi | |
| 231. |
Fragmentation is observed in: |
| A. | Bryophyllum |
| B. | Kalanchoe |
| C. | Hydra |
| D. | Lichen |
| E. | None of these |
| Answer» E. None of these | |
| 232. |
Cells which are involved in sexual reproduction are called: |
| A. | Offsprings |
| B. | Young ones |
| C. | Gametes |
| D. | Buds |
| E. | None of these |
| Answer» D. Buds | |
| 233. |
Fertilisation of egg with sperm in humans takes place in: |
| A. | Ovaries |
| B. | Oviduct |
| C. | Cervix |
| D. | Vagina |
| E. | None of these |
| Answer» C. Cervix | |
| 234. |
Which one of the following is not viviparous? |
| A. | Cow |
| B. | Hen |
| C. | Human |
| D. | Dog |
| E. | None of these |
| Answer» C. Human | |
| 235. |
When embryo gets embedded in the lining of the uterus, it is said to be: |
| A. | Fertilisation |
| B. | Implantation |
| C. | Reproductive |
| D. | Ovulation |
| E. | None of these |
| Answer» C. Reproductive | |
| 236. |
Eggs of frog are protected by: |
| A. | Scrotal sac |
| B. | Hard shell |
| C. | Layer of jelly |
| D. | Sperms |
| E. | None of these |
| Answer» D. Sperms | |
| 237. |
After formation of sperms in testes, sperms are stored temporarily in: |
| A. | Bladder |
| B. | Penis |
| C. | Epididymis |
| D. | Scrotal sac |
| E. | None of these |
| Answer» D. Scrotal sac | |
| 238. |
Small bag of skin in which testes are enclosed is: |
| A. | Penis |
| B. | Scrotal sac |
| C. | Vas deferens |
| D. | Bladder |
| E. | None of these |
| Answer» C. Vas deferens | |
| 239. |
____ is the resulting cell which gives rise to a new individual after fertilisation. |
| A. | Embryo |
| B. | Foetus |
| C. | Zygote |
| D. | Ova |
| E. | None of these |
| Answer» D. Ova | |
| 240. |
Which of the following sequence is correct for the events during reproduction? |
| A. | Zygote \[\to \] Embryo \[\to \] Foetus \[\to \] Baby animal |
| B. | Embryo \[\to \] Zygote \[\to \] Foetus \[\to \] Baby animal |
| C. | Zygote \[\to \] Foetus \[\to \] Embryo \[\to \] Baby animal |
| D. | Baby animal \[\to \] Zygote \[\to \] Foetus \[\to \] Embryo |
| E. | None of these |
| Answer» B. Embryo \[\to \] Zygote \[\to \] Foetus \[\to \] Baby animal | |
| 241. |
Which of the following is a mode of asexual reproduction? |
| A. | Budding |
| B. | Fragmentation |
| C. | Binary fission |
| D. | All the above |
| E. | None of these |
| Answer» D. All the above | |
| 242. |
A girl has menstruation on the 6th day of the month. When is ovulation most likely to occur? |
| A. | 15th-17th day |
| B. | 18th - 20th day |
| C. | 23rd - 25th day |
| D. | 27th-28th day |
| Answer» C. 23rd - 25th day | |
| 243. |
Which of the following will occur in females at puberty? |
| A. | Ovulation |
| B. | Enlargement of breasts |
| C. | Broadening of hips |
| D. | All of these |
| Answer» E. | |
| 244. |
What causes changes in females at the time of puberty? |
| A. | Sex cells |
| B. | Enzymes |
| C. | Nutrients |
| D. | Sex hormones |
| Answer» E. | |
| 245. |
What is the role of sperms in reproduction? |
| A. | To stimulate ovum |
| B. | To fertilize the egg |
| C. | To form foetus |
| D. | To initiate changes in male during puberty |
| Answer» C. To form foetus | |
| 246. |
Direction: Answer the questions from 4 based on the graph given below. What are the two different periods that show rapid growth rate? |
| A. | Infancy and adolescence |
| B. | Adulthood and old age |
| C. | Infancy and childhood |
| D. | Adolescence and old age |
| Answer» B. Adulthood and old age | |
| 247. |
Which of the following represents the composition of female destined zygote in human beings? |
| A. | 22+X. |
| B. | 44+XY. |
| C. | 33+Y. |
| D. | 44+XX. |
| Answer» E. | |
| 248. |
Which of the following body fluids does not transmit HIV? |
| A. | Blood |
| B. | Breast milk |
| C. | Tears |
| D. | Semen |
| Answer» D. Semen | |
| 249. |
Which of the following endocrine glands is nearest to the heart? |
| A. | Thyroid |
| B. | Pancreas |
| C. | Thymus |
| D. | Adrenal |
| Answer» D. Adrenal | |
| 250. |
What do X, Y and Z represent in the figure given below? |
| A. | X-Ovum, Y-testes, Z-Ovulation |
| B. | X-Testes, Y-Ovum, Z-lmplantation |
| C. | X-Ovum, Y-Testes, Z-lmplantation |
| D. | X-Testes, Y-Ovum, Z-Fertilization |
| Answer» E. | |