Sperm gain the ability to \"swim\" as a result of what? contact with seminal flu

Question

Sperm gain the ability to "swim" as a result of what? contact with seminal fluid contact with testosterone contact with female reproductive tract contact with blastocyst contact with the uterine tube It takes at least 2 hours for sperm to reach the uterine tube. true false Where does fertilization normally occur? between the fimbrae and the ampulla between the ampulla and isthmus between the isthmus and uterus between the fundus and cervix The corona radiate are cells surrounding the oocyte at ovulation and they primarily provide what to the oocyte? protection nourishment activation enzymes genetic information fertilization receptors Which enzyme contained in the acrosome helps break down cells surrounding the oocyte to allow penetration. acrosomase prostoglandase zygolysase hyaluronidase hippocratase The oocyte is suspended in which cell stage when the sperm reaches it? meiosis I meiosis II mitosis I mitosis II During oocyte activation what is released in the cell and leads to the increase in the cell's metabolic rate? Ca^++ K^+ Na^+ Cl^- Fertilization is complete as soon as the cell membranes of the sperm and oocyte fuse. true false

Explanation / Answer

8) Seminal fluid produced in different locations including testis, prostate gland,seminal vesicle and bulbourethral gland, it contains ,fructose, protein , enzyme, vit C, pottassium, prostaglandins. sperm uses fructose in the form of fuel to swim. So the ans is (a).

9) Sperm takes 12hours to reach the uterine tube. So the ans is (b)

10) Fertilization takes place in the fallopian tube, away from the uterus, i.e., between ampulla and fimbrae. The ans is (a)

11) Corona radiata is the outermost protective covering of an unfertilizaed egg, it provides proteins to the cell. The ans is (b)

12) The process is referred as Acrosome reaction. In this process acrosomal enzymes like hyaluronidase is released. Hyaluronidase degrades the cells surrounding the oocyte. The ans is (d)

13) at birth the egg arrests at prophase of meiosis I, which continues after puberty and reaches meiosis II where it gets arrests at metaphase II and will not continue till fertilization. The ans is (b)

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