Sperm Anatomy
Trending Questions
- Release of lysine
- Capacitation
- Influx of Na+
- Release of fertilizin
In the given figure, identify the labelled parts and match them with their relative description.
P - ii Q - iii R - v S - i
P - v Q - i R - iii S - ii
P - iv Q - iii R - ii S - i
P - ii Q - v R - iv S - i
Acrosome of the sperm is derived from_______
Golgi apparatus
nucleus
centriole
mitochondria
Choose the correct option with respect to the assertion and reason given.
Assertion [A]: Sperms are stripped of other organelles except for mitochondria.
Reason [R]: Sperm motility is important for fertility in humans.
[A] is true and [R] is false.
[A] is false and [R] is true.
Both [A] and [R] are true and [R] is a correct explanation to [A].
Both [A] and [R] are true but [R] is not a correct explanation to [A].
- Nucleus
- Centriole
- E.R.
- Mitochondria
The cell organelle(s) present in a mature sperm is/are
Acrosome
Mitochondria
Centriole
Nucleus
All of the above
Given below are certain statements regarding sperm organelles. With respect to these statements, choose the correct option.
Statement 1: Centrioles provide polarity to the sperm.
Statement 2: Centrioles release energy when mitochondria in sperm become dysfunctional.
Statement 3: Centrioles help in cell division in the zygote formed post fertilisation.
Statement 4: Sperm do not possess centrioles.
Statement 1, 3 and 4 are correct.
Statement 1 is correct.
Statement 1 and 2 are correct.
Statement 3 is correct.
- Acrosome has a conical point structure used for piercing and penetrating the egg resulting in fertilisation
- The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
- Acrosome serves no particular function
- Acrosome serves as a sensory structure leading the sperm towards the ovum
The spermatozoan has
Head
Tail
All of the above
Mid-piece
- centriole, mitochondria and 9 + 2 arrangement of microtubules
- centriole and mitochondria
- mitochondria and 9 + 2 arrangement of microtubules
- 9 + 2 arrangement of microtubules only