1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marta [7]
3 years ago
5

What type of agent would be most likely to disrupt the structures of microvilli?

Biology
1 answer:
victus00 [196]3 years ago
4 0
The addition of the Calcium Ion (Ca++) is likely to disrupt the structures of microvilli.

Some cells that have a role in absorption or secretion contain microvilli, protrusions of the membrane, due to which the membrane surface area is increased and therefore it leads to more effective diffusion of different molecules through the membrane. They are also involved in cellular adhesion.

Microvilli consist of actin filaments, that are tightly packed and cross-linked, at its core. Microvilli have a big role in the gastrointestinal tract where they have a function in the absorption of nutrients, and therefore they contain enzymes that break down nutrients into compounds that are easy to absorb.

Certain diseases lead to the destruction of microvilli, like in some types of E. Coli infections, and this destruction is caused by the rearrangement of the host cells cytoskeleton which then leads to diarrhea and the disruption the normal process of absorption.

The filaments that are a part of the microvilli structure contain actin and calmodulin which are proteins that make up the filaments of the microvilli. It has been shown that the addition of the Calcium Ion (Ca++) to the cores of the microvilli causes a drastic disruption of these filaments by participating in the solubilization of a large portion of the actin and calmodulin proteins. Ca++ reacts with these proteins, binds to them, and reduces the tightly packed structure of the microvilli filaments.
You might be interested in
Which is the most common type of plant tissue?
IRISSAK [1]
The answer is xylem and wood
3 0
3 years ago
Which is not a compound 8h2<br> H2o<br> 6cao<br> 5hci
RUDIKE [14]
A would be your answer! Have a great day love! 
6 0
2 years ago
1. A mixture is a blend of two or more substances that have NOT
zaharov [31]

Answer:

A. combined chemically

Explanation:

7 0
3 years ago
The classification of organisms is called (1 point)
Natali5045456 [20]

Answer:

the answer is taxonomy

5 0
2 years ago
This type of membrane transport moves substances against the concentration gradient from an area of low concentration to an area
sashaice [31]

<u>Answer</u>:- Active transport

<u>Explanation</u>:-

There are two types of membrane transports

1. Passive transport - this type of transport occurs without the input of any energy and the molecules move along the concentration gradients that is from <em>high concetration to low concentration.</em>

2. Active transport- this type of transport takes place to move the molecules against the concentration gradient that is from <em>low concentration to high concentration.</em>

<em>The active transport is of two types:</em>

1. <em>Primary active transport-</em> in this type of transport <em>ATP</em> is used as an energy source to move the substances against the concentration gradient.

2.<em>Secondary active transport</em> - in this type of transport the gradient formed by the active transport is utilized and it involves the movement of 2 substances at a time aross the membrane. That is the movement of one molecule is coupled to another.


  • The membrane proteins that are associated with active transport are called as <em>carrier proteins</em>. These proteins have a binding site for the molecules that they transport. Once they bind to the specific molecules, a conformation change is induced and this leads to the transport of the molecule across the membrane.

So, the <em>active transport is basically responsible for utilizing the energy from ATP and carrier proteins to move the substances across the membrane against their concentration gradient i.e. from low concentration to high concentration.</em>

5 0
2 years ago
Other questions:
  • 3 How did they determine the age of the houses or dwellings?
    7·2 answers
  • Which level of organization in the classification system is directly above the phylum level? Class Domain Kingdom Order
    15·2 answers
  • The process of. Is where autotrophs convert solar energy into high-energy sugars and starches.
    10·1 answer
  • Ecosystems are named A. by the climate that is associated with the ecosystem. B. by the plants that inhabit the ecosystem. C. by
    11·2 answers
  • What are the 2 major types of animals? insects and mammals coelomates and psuedocoelomates vertebrates and invertebrates medusa
    7·2 answers
  • A woman begins driving her car 25 km north of calgary. Some time later, the woman and her car are 100 km north of calgary. What
    10·1 answer
  • In what way are the humerus and the femur similar? An x-ray of the human body showing the humerus and femur bones A. They both a
    14·2 answers
  • The scientific definition of work is force times distance (w=FD) true or false
    11·2 answers
  • What is your goal if you're going to diet? To lose weight or to lose mass? Why?
    7·1 answer
  • SpongeBob's mother is so proud of her son and his new wife, SpongeSusie, as they are expecting a little sponge. She knows that
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!