Akshay’s father had a tumour in his prostate gland. His doctor advised him to get it removed surgically. One side effect of the surgery was incontinence of urine, i.e., leakage of urine from the urinary bladder.
(a) Where is the prostate gland located?
(b) Why does the prostate gland produce an alkaline secretion?
(c) Name the structure regulating the flow of urine from the bladder into the urethra.
(a) The prostate gland is located just below the urinary bladder and surrounds the urethra near its origin.
(b) Its alkaline secretion neutralises the acidity of the urethra and the female reproductive tract, helping sperm survive.
(c) The internal urethral sphincter regulates the flow of urine from the bladder into the urethra.
More ICSE Hard level questions
Choose the odd one out from the following terms and name the category to which the others belong: (a) Auxin, Oxytocin, Gibberellin, Cytokinin (b) Growth Hormone, Vasopressin, Thyroid Stimulating Hormone, Gonadotropic Hormone (c) Urochrome, Urea, Uric acid, Nucleic acid (d) Cervix, Chordae Tendinea, Papillary Muscles, Sinoatrial node (e) Morula, Blastocyst, Oviduct, Foetus
A person suffering from kidney failure has proteins in the urine. What is this condition called? (a) Haematuria (b) Glycosuria (c) Albuminuria (d) Anaemia
Structures shown: Renal medulla, Renal artery, Renal vein, Pelvis, Ureter and Renal cortex. Structure Label Function (a) Has Malpighian capsules (b) Carries oxygenated blood (c) Transports urine to urinary bladder (d) Has Henle's loops (e) Carries deoxygenated blood (f) Receives urine which flows into ureter Example: Pelvis - (f)
Given below is the diagram of a human sperm. Read the information below the diagram and fill in the blanks: Living organisms reproduce to form new individuals of their own kind. This is essential for the survival and continuation of species. Human sperms are microscopic structures that carry genetic material. The head of the sperm has a cap like organelle called (a) ............... (Lysosome / Acrosome) which produces an enzyme (b) ............... (Hyaluronidase / Amylase) that dissolves the outer layer of the ovum to facilitate fertilisation. The nucleus of the sperm has (c) ............... (23 / 46) chromosomes. The middle piece has (d) ............... (Chloroplast / Mitochondria) to provide energy for the motility of the sperm. (e) ............... (Semen / Hymen) is a mixture of sperms and the fluids produced by the male accessory glands.
Give the biological/technical terms for the following: (a) The tropic movement wherein the tendrils of a pea plant twine around a support. (b) A defect in our eye in which some parts of the object are in focus while the other parts are blurred. (c) The type of waste generated in hospitals and pathological laboratories. (d) The surgical technique for females that can be used to prevent pregnancy. (e) The evolutionary process by which new species arise from the existing one.
During which phase of the menstrual cycle does the endometrium shed? (a) Follicular phase (b) Ovulatory phase (c) Menstrual phase (d) Luteal phase
Mention any two secondary sexual characteristics in a 15-year-old boy.
What is the role of the following? (a) Leydig cells (b) Seminiferous tubules
A 28-year-old pregnant lady goes to a gynecologist for a check-up. Her doctor explains that there is normal growth of the foetus and the placenta is functioning well. (a) Mention one function of the placenta. (b) What connects the placenta to the foetus?
Draw a neat, labelled diagram of a Malpighian Capsule.
Draw a neat, labelled diagram of a human sperm.
Give the biological term for the surgical method of contraception in human females.
