Here in this article, we are providing MCQs for NEET Biology Human Reproduction. MCQ questions in NEET are designed to test the candidate’s knowledge, understanding, and application of concepts related to biology, physics, and chemistry. These questions require students to analyze the given information and choose the most appropriate answer from the list of options provided.
Here we are providing Biology MCQs for NEET Chapter- Human Reproduction.
Biology MCQs for NEET Chapter – Human Reproduction
Q.1. Foetal ejection reflex in human female is induced by
(a) release oxytocin from pituitary
(b) fully developed foetus and placenta
(c) differentiation of mammary glands
(d) pressure exerted by amniotic fluid
Answer
Answer:(b) Foetal ejection reflex in human female is induced by fully developed foetus and placenta. When a woman is in a lithotomy or semi-sitting position, the foetal ejection reflex is impaired and the increased pain caused by the sacrum’s inability to move as the baby descends can be intolerable.
Q.2. Which one of the following statements about human sperm is correct?
(a) Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in
fertilisation
(b) The sperm lysine in the acrosome dissolve the egg envelope facilitating fertilisation
(c) Acrosome serves as a sensory structure leading the sperm towards the ovum
(d) Acrosome serves no particular function
Answer
Answer:(b) Acrosome a small pointed structure at the tip of nucleus. It breaks down just before fertilization, releasing hydrolytic enzymes that assist penetration between follicle cells that surrounds the ovum, thus facilitating fertilization.
Q.3. Sertoli cells are found in
(a) ovaries and secrete progesterone
(b) adrenal cortex and secrete adrenaline
(c) seminiferous tubules and provide nutrition to germ cells
(d) pancreas and secrete cholecystokinin
Answer
Answer:(c) Sertoli cells are found in the walls of seminiferous tubules of the testes. They anchor and provide nutrition to the developing germ cells especially the spermatids.
Q.4. The phase of menstrual cycle in humans that lasts for 7-8 days, is
(a) follicular phase
(b) ovulatory phase
(c) luteal phase
(d) menstruation
Answer
Answer:(b) In menstrual cycle, menstrual phase lasts for 4 days, proliferating/ovulating phase for about 10 days and secretory phase for 14 days.
Q.5. Cessation of menstrual cycle in women is called
(a) menopause
(b) lactation
(c) ovulation
(d) parturition
Answer
Answer:(a) Menopause is the period when ovulation and menstrual cycle stop in human females. The period of menopause is between 45-55 years.
Q.6. In human female the blastocyst
(a) Forms placenta even before implantation
(b) Gets implanted into uterus 3 days after ovulation
(c) Gets nutrition from uterine endometrial secretion only after implantation
(d) Gets implanted in endometrium by the trophoblast cells
Answer
Answer:(d)
Q.7. Bulbourethral gland is present in
(a) Males and is another name for Uterus masculina
(b) Females and is another name for Bertholin’s gland
(c) Males and is another name for Cowper’s gland
(d) None of these
Answer
Answer:(c) The gland corresponding to this in female is Bertholin.
Q.8. Which one of the following are rich in fructose, calcium and some enzymes?
(a) Male accessory glands
(b) Liver
(c) Pancreas
(d) Salivary glands
Answer
Answer:(a)
Q.9. Umbilical cord has
(a) Two arteries carrying blood to placenta and one vein returning blood to foetus
(b) One artery carrying blood to placenta and two veins returning blood to foetus
(c) Two arteries bringing blood to foetus and one vein carrying blood to placenta
(d) One artery bringing blood to foetus and two veins carrying blood to placenta
Answer
Answer:(a)
Q.10. Which of the following induces parturition ?
(a) Vasopressin
(b) Oxytocin
(c) Growth hormone
(d) Thyroid stimulating hormone
Answer
Answer:(b)
Q.11. Breast feeding suspends pregnancy due to
(a) post pregnancy lower levels of FSH and LH
(b) post pregnancy higher levels of FSH and LH which put negative check on ovulation
(c) inhibiting the release of LH by prolactin and thus countering the effects of LH on the ovarian follicles
(d) increasing the release of inhibin by prolactin and thus
countering the effects of FSH on the ovarian follicles
Answer
Answer:(c) During breast feeding, prolactin hormone (required for the release of milk) present in the blood inhibits the release of LH from pituitary. This will counter the effect of LH on the ovarian follicles and therefore no ovulation will occur. Hence, no pregnancy occurs during this period.
Q.12. The human embryo, with 8 to 16 blastomere is called
(a) Morula
(b) Blastula
(c) Gastrula
(d) Foetus
Answer
Answer:(a)
Q.13. Reabsorption of chloride ions from glomerular filtrate in kidney tubule occurs by
(a) Active transport
(b) Diffusion
(c) Osmosis
(d) Brownian movement
Answer
Answer:(b)
Q.14. A person which shows the secondary sexual characters of both male and female is called –
(a) Intersex
(b) Hermaphrodite
(c) Bisexual
(d) Gynandromorph
Answer
Answer:(d)
Q.15. The second maturation division of the mammalian ovum occurs:
(a) in the graafian follicle following the first maturation division
(b) shortly after ovulation before the ovum makes entry into the Fallopian tube
(c) until after the ovum has been penetrated by a sperm
(d) until the nucleus of the sperm has fused with that of the ovum
Answer
Answer:(b)
Q.16. What happens during fertilisation in humans after many sperms reach close to the ovum?
(a) Cells of corona radiata trap all the sperms except one
(b) Only two sperms nearest the ovum penetrate zona pellucida
(c) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida
(d) All sperms except the one nearest to the ovum lose their tails
Answer
Answer:(b)
Q.17. Which one of the following is the correct matching of the events occurring during menstrual cycle?
(a) Proliferative phase: Rapid regeneration of myometrium and maturation of Graffian follicle.
(b) Development of corpus luteum : Secretory phase and increased secretion of progesterone.
(c) Menstruation: Breakdown of myometrium and ovum not fertilised.
(d) Ovulation: LH and FSH attain peak level and sharp fall in the secretion of progesterone.
Answer
Answer:(b) The corpus luteum is essential for establishing and maintaining pregnancy in females. In the ovary, the corpus luteum secretes estrogens and progesterone, which are steroid hormones responsible for the thickening of the endometrium and its development and maintenance, respectively.
Q.18. The part of fallopian tube closest to the ovary is
(a) isthmus
(b) infundibulum
(c) cervix
(d) ampulla
Answer
Answer:(b) The part of fallopian tube closest to the ovary is infundibulum. Infundibulum possess finger-like projections called fimbriae that help in collection of ovum after ovulation. It leads to wider part of oviduct called ampulla. The last part of oviduct is isthmus that has a narrow lumen and joins the uterus.
Q.19. If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from
(a) testes to epididymis
(b) epididymis to vas deferens
(c) ovary to uterus
(d) vagina to uterus
Answer
Answer:(a) Vasa efferentia are fine ciliated ductules that arise from the seminiferous tubules of testis (where sperms are formed) and open into epididymis which is a mass of long, narrow, closely coiled tubule lying along the inner side of testis. Epididymis stores the sperms. Thus, if vasa efferentia get blocked, sperms will not be transported from testes to epididymis.
Q.20. The chemical substance found in the surface layer of cytoplasm of spermatozoa is:
(a) fertilizin
(b) agglutinin
(c) antifertilizin
(d) hyaluronidase
Answer
Answer:(c)
Q.21. The nutritive cells found in seminiferous tubules are
(a) Leydig’s cells
(b) atretic follicular cells
(c) Sertoli cells
(d) chromaffin cells.
Answer
Answer:(c) Wall of each seminiferous tubule is formed of a single layered germinal epithelium. Majority of cells in this epithelium are male germ cells and at certain places, there are present tall Sertoli cells. These cells act as nurse cells providing nutrition to the developing sperms.
Q.22. The head of the epididymis at the head of the testis is called
(d) cauda epididymis
(b) vas deferens
(c) caput epididymis
(d) gubernaculum
Answer
Answer:(c)
Q.23. Which of the following diseases is caused by the under secreation of cortisol?
(a) Anaemia
(b) Addison’s disease
(c) Hyperglycemia
(d) Mental illness or retardation
Answer
Answer:(b)
Q.24. Seminal plasma in humans is rich in
(a) fructose and calcium but has no enzymes
(b) glucose and certain enzymes but has no calcium
(c) fructose and certain enzymes but poor in calcium
(d) fructose, calcium and certain enzymes
Answer
Answer:(d)
Q.25. The function of the secretion of prostate gland is to
(a) inhibit sperm activity
(b) attract sperms
(c) stimulate sperm activity
(d) none of these
Answer
Answer:(c)
Importance of Practicing MCQ Questions for NEET Biology
Practicing Multiple Choice Questions (MCQs) is an important part of preparing for the NEET Biology exam. Here are some reasons why practicing MCQs is essential for NEET Biology preparation:
- Enhances knowledge retention: MCQs require you to recall information, which helps improve your memory and knowledge retention.
- Increases speed and accuracy: Regular practice of MCQs helps you become faster and more accurate in answering questions, which is essential for the NEET Biology exam.
- Familiarizes with the exam pattern: Practicing MCQs gives you an idea of the type of questions that can be asked in the exam, helping you prepare better.
- Improves test-taking skills: MCQs require you to analyze information and choose the best answer from a given set of options. This helps improve your test-taking skills.
- Helps identify knowledge gaps: Practicing MCQs can help you identify areas where you need to improve your understanding or clarify your concepts.
- Boosts confidence: Regular practice of MCQs can help boost your confidence, making you feel more prepared and less anxious about the exam.
Therefore, it is important to practice MCQs as part of your NEET Biology exam preparation to increase your chances of success.
Best Ways to Prepare for NEET Biology
Preparing for NEET biology requires a combination of a strong foundation in fundamental concepts and consistent practice. Here are some tips on how to prepare for NEET biology:
- Understand the Syllabus: NEET biology syllabus covers a vast range of topics, so it’s essential to have a clear understanding of the syllabus. Refer to the NEET biology syllabus and mark the topics that you need to focus on.
- Strengthen the Fundamentals: NEET biology tests your understanding of basic concepts, so it’s crucial to have a strong foundation in fundamental concepts. Start with the basics and build on them. Use textbooks and other study materials to revise the basics.
- Practice Diagrams: Biology has a lot of diagrams that need to be labeled and explained. Practice drawing and labeling diagrams regularly to ensure that you are comfortable with it.
- Practice MCQs: NEET biology consists mainly of multiple-choice questions (MCQs). Practice MCQs regularly to improve your speed and accuracy.
- Take Mock Tests: Take mock tests regularly to get an idea of the exam pattern, time management, and to identify your strengths and weaknesses. Analyze your performance in the mock tests and work on improving your weak areas.
- Revision: Revision is crucial to retain what you have studied. Set aside time for regular revision and ensure that you revise all the topics at least once.
- Stay Motivated: NEET biology requires consistent effort and hard work. Stay motivated and focused on your goals and maintain a positive attitude towards your preparation.
So, preparing for NEET biology requires a combination of strong fundamentals, consistent practice, and regular revision. With proper planning and dedicated effort, you can score well in NEET biology.
Chapters Covered in NEET Biology
NEET Biology covers a vast range of topics from both Botany and Zoology. The NEET Biology syllabus is divided into two parts – Class 11 and Class 12. Here is an overview of the chapters covered in NEET Biology:
Class 11 Biology:
- The Living World
- Biological Classification
- Plant Kingdom
- Animal Kingdom
- Morphology of Flowering Plants
- Anatomy of Flowering Plants
- Structural Organisation in Animals
- Cell: The Unit of Life
- Biomolecules
- Cell Cycle and Cell Division
- Transport in Plants
- Mineral Nutrition
- Photosynthesis in Higher Plants
- Respiration in Plants
- Plant Growth and Development
Class 12 Biology:
- Reproduction in Organisms
- Sexual Reproduction in Flowering Plants
- Human Reproduction
- Reproductive Health
- Principles of Inheritance and Variation
- Molecular Basis of Inheritance
- Evolution
- Human Health and Disease
- Strategies for Enhancement in Food Production
- Microbes in Human Welfare
- Biotechnology: Principles and Processes
- Biotechnology and its Applications
- Organisms and Populations
- Ecosystem
- Biodiversity and Conservation
- Environmental Issues
The NEET Biology syllabus covers a diverse range of topics, and it is essential to have a clear understanding of each topic to score well in the exam. It is recommended to refer to the NCERT textbooks and other standard reference books for NEET Biology preparation.