MCQ ON SPERM class 12 for NEET | SPERM class 12 | MCQ SPERM with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.
MCQ ON SPERM class 12 for NEET
MCQ on SPERM class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs questions on SPERM with Answers to help students understand the concept very well.
MCQ ON SPERM is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23, 2023-24
Introduction:-
Human Sperm is a dark like flagellate structure of 60 micrometre length and maximum breadth of 3.5 micrometre , .It has four parts – head , neck , middle piece and tail.Head has two components , acrosome and nucleus.Cytoplasm is nearly absent.Neck has two centrioles , middle piece contain mitochondria ,tail is a narrow vibratile long part about 50 micrometre in length ,with two regions main and end piece.
MCQ ON SPERM class 12 for NEET
1. Acrosome reaction in sperm is triggered by
(a) capacitation
(b) release of lysin
(c) influx of sodium ion
(d) release of fertilizin
Ans (d) release of fertilizin
2. Acrosome is made of
(a) mitochondria
(b) centrioles
(c) golgi bodies
(d) ribosomes
Ans. (c) golgi bodies
3. Supporting cells found in between spermatogonia are
(a) Germania cells
(b) Sertoli cells
(c) epithelial cells
(d) lymph spaces
Ans. (b) Sertoli cells
4. Tail- less sperms occur in
(a) frog
(b) ascaris
(c) amphioxus
(d) rabbit
Ans.(b) ascaris
5. A mature sperm has
(a) a pair of flagella
(b) nucleus and acrosome and a centrioles
(c) nucleus, an acrosome and a pair of centrioles
(d) a nucleus , an acrosome a pair of centrioles and tales
Ans.(d) a nucleus, an acrosome , a pair of centrioles and tales.
6. Human sperm was discovered by
(a) Leeuwenhoek
(b) Aristotle
(c) Graaf
(d) Pander
Ans.(a) Leeuwenhoek
7. Sperm head contains
(a) mitochondria
(b) nucleus
(c) yolk
(d) centrosome
Ans.(b) nucleus
8. Preparation of sperm before penetration of ovum is
(a) spermation
(b) coition
(c) insemination
(d) capacitation
Ans.(d) capacitation
9. Acrosome reaction occurs at the time of
(a) excretion
(b) painful stimulation
(c) movement of sperm
(d) fertilisaton
Ans. (d) fertlisation
10. Point of sperm entry forms
(a) axis of cleavage
(b) grey crescent
(c) dorsal lip of blastopore
(d) centre of embryo rotation
Ans. (a) axis of cleavage
11. Acrosome occurs in the sperm
(a) tail part
(b) behind the nucleus
(c) middle piece
(d) tip
Ans.(d) tip
12. Middle piece of mammalian sperm contains
(a) nucleus
(b) vacuole
(c) mitochondria
(d) centriole
Ans . (c) mitochondria
13. Movement of sperm is by
(a) head
(b) acrosome
(c) middle piece
(d) tail/flagellum
Ans.(d) tail/flagellum
14. A head of nature mammalian sperm is made of
(a) an acrosome
(b) elongated nucleus covered by acrosome
(c) two centrioles and an axial filament
(d) none of the above
Ans. (b) elongated nucleus covered by acrosome
15.Hyaluronidase is present in
(a) Ovary
(b) Ovum
(c) Sperm
(d) blood
Ans.(c) sperm
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16. Part of sperm that passes into ovum is
(a) tail
(b) acrosome
(c) head
(d) head, neck and middle piece
Ans.(d) head, neck and middle piece
17. Proximal centriole of sperm is found in
(a) head
(b) neck
(c) middle piece
(d) tail
Ans.(b) neck
18.Sperm develop in
(a) vas deferens
(b) seminiferous tubules
(c) prostate gland
(d) interstitial cells
Ans.( b) seminiferous tubules
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