Biology
The diagram given below shows the male urinogenital system of a human being. Study the diagram and answer the questions that follow:
(i) Label the parts numbered 1 to 8.
(ii) Name the corresponding structure of part (4) in female reproductive system.
(iii) What is the role of part 7?
Answer
(i) The parts numbered 1 to 8 are:
- 1 → Urinary bladder
- 2 → Ureter
- 3 → Prostate gland
- 4 → Vas deferens / Sperm duct
- 5 → Urethra
- 6 → Testis
- 7 → Scrotum / Scrotal sac
- 8 → Epididymis
(ii) Fallopian tube / Oviduct
(iii) Scrotum is a thin-walled sac of skin that protects and surrounds the testes. It also maintains the temperature of testes at 2 to 3°C less than body temperature for the maturation of sperms.
Related Questions
The diagram given below shows a section of a human kidney. Study the diagram carefully and answer the questions that follow:
(i) Label the parts numbered 1 to 4.
(ii) Why does part '2' have a striped appearance?
(iii) What is the fluid that passes down part '4'? Name the main nitrogenous waste present in it.
(iv) Mention the structural and functional units of kidneys.
(v) Name the two major steps in the formation of the fluid mentioned in Q. 5(a) (iii).
Draw neat and labelled diagrams of the following:
(i) Malpighian Capsule.
(ii) A Myelinated Neuron.
In a homozygous plant round seeds (R) are dominant over wrinkled seeds (r):
(i) Draw a Punnett square to show the gametes and offspring when both the plants have heterozygous round seeds (Rr).
(ii) Mention the Phenotype and Genotype ratios of the offsprings in F2 generation.
(iii) Name the sex chromosomes in human males and females.
(iv) Briefly explain the term 'Mutation'
(v) What is the number of chromosomes in the gametes of human beings?
The diagram below represents the human heart in one phase of its functions. Study the diagram carefully and answer the questions that follow:
(i) Name the phase.
(ii) Which part of the heart is contracting in this phase? Give a reason to support your answer.
(iii) Name the parts labelled 1 to 4.
(iv) What type of blood flows through '2'?
(v) State the function of the part numbered '5'.
(vi) Name the membrane that covers the heart.