Description : Write the function of each of the following (i)Seminal vesicle (ii)Scutellum (iii)Acrosome of human sperm -Biology
Last Answer : (i)Seminal vesicle spermatogenesis It secretes an alkaline fluid that helps in neutralising the acidity of the vaginal tract and thereby increase the lifespan of sperms. Secretion of seminal vesicle is ... which help the sperm enter into the cytoplasm of the ovum and thus helps in fertilisation.
Description : Acrosome of sperm contains
Last Answer : Acrosome of sperm contains A. Hydrolytic enzymes B. DNA C. Fructose D. Mitochondria.
Description : In the absence of acrosome the sperm
Last Answer : In the absence of acrosome the sperm A. Cannot penetrate the egg B. Cannot get food C. Cannot get energy D. Cannot swim.
Description : Acrosome reaction of sperm is triggered by
Last Answer : Acrosome reaction of sperm is triggered by A. Capacitation B. Release of lysin C. Release of fertilizin D. Influx of `Na^(+)`
Last Answer : Acrosome of sperm contains A. Hyluronidase and acrosin B. Hyaluronic acid and acrosin C. Hippuric acid and uric acid D. Creatinine.
Description : Acrosome reaction in sperm is triggered by (a) capacitation (b) release of lysin (c) influx of Na+ (d) release of fertilizin.
Last Answer : (c) total
Description : Fertilizin is a chemical substance produced from (a) polar bodies (b) middle piece of sperm (c) mature eggs (d) acrosome.
Last Answer : (c) mature eggs
Description : What happens during fertilisation in humans after many sperms reach close to the ovum? (a) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida. (b) All sperms except ... all the sperms except one. (d) Only two sperms nearest the ovum penetrate zona pellucida.
Last Answer : (a) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida.
Description : Which one of the following statements about human sperm is correct? (a) Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation. (b) The ... a sensory structure leading the sperm towards the ovum. (d) Acrosome serves no particular function
Last Answer : (b) The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation.
Description : 9.Acrosome is important for ----------- . a)ATP production, b)Dissolving membrane of ovum, c)Motility of sperm, d)Nutrition of sperm
Last Answer : b)Dissolving membrane of ovum,
Description : The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is (a) spermatogonia - spermatocyte - spermatid - sperms (b) spermatid - spermatocyte ... - spermatid - spermatocyte - sperms (d) spermatocyte - spermatogonia - spermatid - sperms
Last Answer : a) spermatogonia - spermatocyte - spermatid - sperms
Description : Which of the following cells during gametogenesis is normally diploid ? (a) Spermatogonia (b) Secondary polar body (c) Primary polar body (d) Spermatid
Last Answer : (a) Spermatogonia
Description : 6.Find the odd one out. (a)spermatid, b)sertoli cell, c)polar body, d)Leydig cell )
Last Answer : c)polar body,
Description : Acrosome is made up of
Last Answer : Acrosome is made up of A. Mitochondria B. Centrioles C. golgi bodies D. Ribosomes.
Description : Which set of enzymes is found in the acrosome of mammalian spermatozoa :
Last Answer : Which set of enzymes is found in the acrosome of mammalian spermatozoa : A. Hyaluronidase , ... Hyaluronidase , CPE , Peptidase D. Hyaluronidase only
Description : Acrosome of spermatozoa is formed from :
Last Answer : Acrosome of spermatozoa is formed from : A. Lysosomes B. Golgi bodies C. Ribosome D. Mitochondria
Description : The acrosome plays a role in :-
Last Answer : The acrosome plays a role in :- A. Fusion of nuclei of gametes B. Motality of sperm C. Penetration of sperm into ovum D. All of the above
Description : Space between acrosome and nucleus is called :-
Last Answer : Space between acrosome and nucleus is called :- A. Nebenkern B. Perforatorium C. Nucleus of Pander D. Perivitelline space
Description : Acrosome formation in spermatogenesis occurs in which stage ?
Last Answer : Acrosome formation in spermatogenesis occurs in which stage ? A. First meiotic division B. Second meiotic division C. Growth phage D. Spermiogenesis
Description : In human beings, normally in which part, does the sperm fertilize the ovum? -Do You Know?
Last Answer : answer:
Description : Thin cytoplasmic layer is present in middle part of sperm is called :-
Last Answer : Thin cytoplasmic layer is present in middle part of sperm is called :- A. Nebenkern B. Manchette C. Axial filament D. Zensen ring
Description : Which part of sperm enters in egg in human ?
Last Answer : Which part of sperm enters in egg in human ? A. Complete sperm B. Only head C. Head and middle piece D. Head and acrosome
Description : human beings, normally in which part, does the sperm fertilize the ovum?
Last Answer : Fallopian tube