MCQ Class 8 Science Chapter 7 Reaching the Age of Adolescence Advertisement MCQ’s For All Chapters – Science Class 8th 1. Adolescence is the period of5 to 10 years11 to 19 years22 to 28 years30 to 40 yearsQuestion 1 of 202. When a sperm having X-chromosome fuses with the ovum, the child born will bemalefemalemale as well as female twinit depends on the chance of fusionQuestion 2 of 203. How many pairs of Chromosomes are found in nuclei of their cells?22 pairs23 pairs24 pairs25 pairsQuestion 3 of 204. Children gain height duringadolescenceendocrinebalanced foodmenarcheQuestion 4 of 205. Testes secretethyroxinestrogentestosteroneiodineQuestion 5 of 206. Adam’s apple isenlarged larynxmammary glandsapple of adamred appleQuestion 6 of 207. The chemical substances which are secreted from endocrine glands are calledpubertyhormonesestrogenadolescenceQuestion 7 of 208. Out of these which one determines the sex of the baby?HormonesChloroplastChromosomesPituitary glandQuestion 8 of 209. What is the stoppage of menstruation called?MenarcheMenopauseGametesInsulinQuestion 9 of 2010. Which hormone is secreted by adrenal glands?AdrenalinInsulinTestosteroneEstrogenQuestion 10 of 2011. Reproduction age in women starts when theirmenstruation startsbreasts start developingbody weight increasesheight increasesQuestion 11 of 2012. Which is male gonads?HairChestMoustacheTestisQuestion 12 of 2013. The beginning of menstruation at puberty is calledovulationmenstruationmenarchemenopauseQuestion 13 of 2014. In males, the sex chromosome consistsone X and one Yboth X and Xboth Y and Yone M and one XQuestion 14 of 2015. Production of thyroxin requiressodiummagnesiumiodinebromineQuestion 15 of 2016. The period of life, when the body undergoes changes, leading to reproductive maturity, is calledchildhoodadolescenceGrown upOld ageQuestion 16 of 2017. The human body undergoes several changes during adolescence. These changes mark the onset ofPubertyPrematurityPost adolescenceageingQuestion 17 of 2018. Adam’s apple is prominent inBoys of any ageAdolescent girlsGirls of any ageAdolescent boysQuestion 18 of 2019. Larynx is also calledVoice boxSound boxBlack boxAll of the aboveQuestion 19 of 2020. Acne and pimples on the face is due to secretion ofbile from liverOil glands during pubertyEnzymes in the digestive tractTear from tear glandsQuestion 20 of 20 Loading...
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