A cross section at mid point of the middle piece of human sperm will showa)Centriole, mitochondira, arrangement ofmicrotubulesb)Centriole and mitochondirac)Mitochondria and 9 2 arrangement of microtubulesd)9 2 arrangement of microtubules onlyCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

The middle piece is the tubular structure in which mitochondria are spirally arranged and it also has.The beginning part of the flagellum.The sperm tail or the flagellum is based upon unique 9+2 arrangement.This arrangement refers to the nine peripheral, symmetrically arranged microtubules.doublets
Thus the cross-section of the middle piece of sperm will show mitochondria and 9+2 arrangement of microtubules.
hence,the correct answer is option 'C', mitochondria and 9+2 arrangement of microtubules.

Answer

Yaa..it is 3rd option.....
as we know that middle piece of sperm is an energy booster ...in which mitochondria is present..which consists of 9+ 2 arrangement of microtubules

Answer

Introduction
A cross-section at the midpoint of the middle piece of a human sperm reveals various cellular structures and organelles that are essential for its function and motility. This section is particularly important as it showcases the key components responsible for generating energy and providing structural support to the sperm.

Components observed
The correct answer, option 'C', states that a cross-section at the midpoint of the middle piece of human sperm will show mitochondria and a 9+2 arrangement of microtubules. Let's break down each component in detail:

Mitochondria
Mitochondria are often referred to as the powerhouses of the cell. They play a crucial role in the production of adenosine triphosphate (ATP), which is the primary source of energy for cellular processes. In the case of sperm, ATP is necessary for motility and the ability to reach and fertilize an egg. The presence of mitochondria in the cross-section indicates the importance of energy production for the sperm's function.

9+2 arrangement of microtubules
The 9+2 arrangement of microtubules refers to the structure of the axoneme, which is the core component of the sperm tail or flagellum. It consists of nine outer doublet microtubules and a pair of central microtubules. This arrangement provides structural support and allows for the bending and movement of the tail, enabling sperm motility. The cross-section reveals this characteristic arrangement, highlighting its significance in sperm function.

Other components not mentioned in the options
Although not mentioned in the given options, additional structures and organelles can also be observed in a cross-section of the middle piece of a human sperm. These may include:

1. Acrosome: Located at the anterior end of the sperm head, the acrosome contains enzymes necessary for sperm penetration into the egg during fertilization.

2. Nucleus: The nucleus of the sperm contains the genetic material, including chromosomes, which carry the paternal genetic information.

3. Plasma membrane: The plasma membrane encloses the entire structure of the sperm, maintaining its integrity and allowing for cellular communication and interaction with the surrounding environment.

Conclusion
A cross-section at the midpoint of the middle piece of human sperm reveals mitochondria, which are responsible for energy production, and a 9+2 arrangement of microtubules, which provides structural support and facilitates sperm motility. These components are crucial for the sperm's ability to reach and fertilize an egg. Additionally, other structures such as the acrosome, nucleus, and plasma membrane can also be observed in a cross-section of the sperm.

Top Courses for NEETView all

Biology Class 11

Daily Test for NEET Preparation

NEET Mock Test Series 2025

Topic-wise MCQ Tests for NEET

Physics Class 11

Top Courses for NEET

Top Courses for NEET

Suggested Free Tests

Related Content

About NEET

NEET Preparation Material

How to Prepare for NEET Exam?

NCERT Based Study Material

NEET Mock Tests

Other Popular Exams

Company