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 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 : Which part of the spermatid forms acrosome of sperm ?
Last Answer : Which part of the spermatid forms acrosome of sperm ? A. Mitochondria B. Golgi body C. Nucleus D. Lysosome
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 : 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 : 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 region of space around the nucleus where there is a high probability of finding an electron is called?
Last Answer : Orbital
Description : NASA’s Deep Impact space mission was employed to take detailed pictures of which comet nucleus? -Do You Know?
Last Answer : answer:
Description : Answer: They are regions of space around the nucleus where the probability of finding an electron is maximum.
Last Answer : Which cells are programmed to die during embryonic stage?
Description : In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?
Last Answer : The name given to a particular space around the nucleus in whichan electron moves is Orbital
Description : In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the ... its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom
Last Answer : ANSWER: Y -- MOST OF THE MASS OF A GOLD ATOM IS IN ITS NUCLEUS
Description : The orbital angular momemtum quantum number indicates which one of the following? w) the average distance of the electrons from the nucleus x) the direction of spin of the electron y) the shape of the orbital z) the position about the three axes in space of the orbital
Last Answer : ANSWER: Y -- THE SHAPE OF THE ORBITAL