Reproductive System
ICSE · Class 10 · Biology
Flashcards for Reproductive System — ICSE Class 10 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
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See them allWhat is reproduction and why is it important for living organisms?
Answer
Reproduction is the production of individuals of their own kind by living organisms. It is vital because it ensures the continuity of species and helps increase the number of individuals in a populati…
Differentiate between asexual and sexual reproduction.
Answer
Asexual reproduction involves production of offspring from a single organism without gamete formation (common in bacteria, protists, lower plants). Sexual reproduction involves formation and fusion of…
Define puberty and state the age range when it occurs in males and females.
Answer
Puberty is the period when reproductive organs mature and secondary sexual characteristics develop. It occurs between 10-14 years of age. Males attain sexual maturity at 13-14 years, while females att…
List the secondary sexual characteristics that develop in males during puberty.
Answer
In males: 1) Deepening of voice, 2) Widening of shoulders, 3) Muscular body development, 4) Appearance of beard and moustache, 5) Growth of axillary and pubic hair, 6) Enlargement of external genital …
List the secondary sexual characteristics that develop in females during puberty.
Answer
In females: 1) Growth of axillary and pubic hair, 2) Widening of pelvis and hips, 3) Enlargement of breasts, 4) Initiation of menstrual cycle, 5) Development of feminine body shape.
What are gonads and what is their primary function?
Answer
Gonads are primary reproductive organs that produce gametes. In males, testes are gonads that produce sperm. In females, ovaries are gonads that produce ova (eggs). They also secrete sex hormones.
Why are testes located outside the abdominal cavity in the scrotum?
Answer
Testes are located in the scrotum to maintain temperature 2-3°C lower than body temperature. This lower temperature is essential for proper sperm development and production. The scrotum helps regulate…
What is the function of Leydig cells (interstitial cells) in testes?
Answer
Leydig cells are found in the connective tissue between seminiferous tubules. They secrete testosterone, the male sex hormone that maintains primary and secondary sexual characteristics in males.
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