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प्रश्न
Differentiate between Rod cells and cone cells (pigment)
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उत्तर
Rods contain the pigment rhodopsin, whereas cones contain the pigment iodopsin.
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संबंधित प्रश्न
Identify True/False statement. Correct false statement to make it true.
Spermatozoa get nutrition from Sertoli cells.
List the structures, in their correct sequence, through which the sperms must pass from the time they are produced in the testes to the time they leave the urethra.
What are the accessory reproductive organs?
Choose the correct answer:
Removal of testes is called ____________
Which of the following hormone maintains the function of male sex accessory gland and ducts?
Ejaculation of human male contains about 200 - 300 million sperms, of which for normal fertility ______% sperms must have normal shape and size and at least ______% must show energetic motility.
Mark the odd one.
Answer the following question based on the human male reproductive system:
In which organ sperms are formed?
Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs:
| Column I | Column II | ||
| (a) | Leydig Cells | 1. | Lack of thyroxine in children |
| (b) | Stoma | 2. | 12 pairs |
| (c) | Ova | 3. | Testosterone |
| (d) | Cranial nerve | 4. | Diffusion of respiratory gases |
| (e) | Cretinism | 5. | Haploid cells |
| 6. | 31 Pairs | ||
| 7. | Diploid cells |
Write important function of the following:
Testis
