Seminal plasma in human males is rich in:
Correct answer: A. Fructose and Calcium
- A. Fructose and Calcium
- B. Glucose and Calcium
- C. DNA and Testosterone
- D. Ribose and Potassium
Explanation
Note: Semen or seminal fluid or seminal plasma is the fluid ejaculated from the penis at sexual climax. Each ejaculate may contain 300 - 500 million spermatozoa suspended in a fluid secreted by the prostate gland and seminal vesicles with a small contribution from Cowper's glands. It is rich in fructose, calcium and certain enzymes. It provides a fluid medium for transport of sperms, nourishes and activates sperms, lubricates the reproductive tract of female and neutralizes the acidity of the vagina of female to protect the sperms.The correct option is: a) Fructose and calciumExplanation of each option:a) Fructose and calcium:Seminal plasma in human males is rich in fructose, which serves as an energy source for sperm cells. It helps nourish and sustain sperm during their journey through the female reproductive tract. Calcium is also present in seminal plasma, and it plays a crucial role in sperm motility and various physiological processes within the sperm.b) Glucose and calcium:Glucose is not a major component of seminal plasma in human males. While glucose is an essential energy source for many cells in the body, it is not the primary sugar found in semen. The correct sugar present in seminal plasma is fructose, as mentioned in option (a).c) DNA and testosterone:While sperm cells do contain DNA and testosterone, seminal plasma, which is the fluid that carries and supports sperm, is not typically rich in these components. Seminal plasma mainly serves to provide nutrients, protect and support sperm during ejaculation and fertilization.d) Ribose and potassium:Ribose is a sugar molecule, and potassium is an essential mineral, but they are not the prominent constituents of seminal plasma. Seminal plasma mainly contains fructose (as explained in option a) to provide energy for sperm motility and calcium (as explained in option a) to support sperm function.In summary, the correct option is (a) Fructose and calcium, as seminal plasma in human males is rich in fructose to provide energy for sperm and calcium to support various physiological processes within the sperm.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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