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.

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)

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.

Mohit, a 30-year-old man was a software professional leading a sedentary life. He showed signs of high blood sugar during a routine health check-up despite having a normal body weight. Answer the following: (a) The hormonal disorder he is suffering from. (b) The hormone responsible for this disorder. (c) The organ that secretes this hormone. (d) One symptom experienced by Mohit due to this disorder. (e) One change in lifestyle to lower the blood sugar level.

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.

Assertion (A): Abscisic acid promotes stomatal closure during a drought. Reason (R): Abscisic acid helps the plant to conserve water during stress. (a) (A) is true and (R) is false (b) (A) is false and (R) is true (c) Both (A) and (R) are true and (R) is the correct explanation of (A). (d) Both (A) and (R) are true and (R) is not the correct explanation of (A).

A person suffering from kidney failure has proteins in the urine. What is this condition called? (a) Haematuria (b) Glycosuria (c) Albuminuria (d) Anaemia

Assertion (A): Leukoderma is the biological term for blood cancer. Reason (R): An abnormal increase in the number of WBCs causes blood cancer. (a) (A) is true and (R) is false. (b) (A) is false and (R) is true. (c) Both (A) and (R) are true and (R) is the correct explanation of (A). (d) Both (A) and (R) are true and (R) is not the correct explanation of (A).

A 17-year-old girl has irregular menstrual cycles and symptoms of adrenal virilism. (a) Hypersecretion of which hormone causes this condition? (b) Mention one symptom of this condition.

During which phase of the menstrual cycle does the endometrium shed? (a) Follicular phase (b) Ovulatory phase (c) Menstrual phase (d) Luteal phase

Which is the correct sequence of blood flow in the Pulmonary and Systemic circulation? (a) Right Atrium → Right Ventricle → Lungs → Left Atrium → Left Ventricle → Body tissues (b) Left Ventricle → Left Atrium → Body tissues → Right Atrium → Right Ventricle → Lungs (c) Left Ventricle → Left Atrium → Lungs → Right Ventricle → Right Atrium → Body tissues (d) Right Atrium → Right Ventricle → Body tissues → Left Atrium → Left Ventricle → Lungs

During the ventricular systole, the atrioventricular valves (P) ............... and the semilunar valves (Q) ............... . (a) P-close and Q-open (b) P-close and Q-close (c) P-open and Q-close (d) P-open and Q-open