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
saveliy_v [14]
3 years ago
13

For excitation-contraction coupling, which of the following is/are required? and Why?

Biology
1 answer:
mihalych1998 [28]3 years ago
6 0

a). Calcium ion and ATP

Explanation:

The excitation and contraction of the muscles takes place by Action potential  creation.

The muscle contraction is initiated when calcium ions binds to troponin. The binding of calcium with protein complex troponin changes the configuraton to  make actin sites active for ATP binding. This binding causes myosin to reach the state of high energy ( excitation), in which myosin head gets detach from the active site.

You might be interested in
Match the following. 1. the basic building block of all forms of life resolving power 2. the idea of Schleiden and Schwann that
Roman55 [17]

Answer:

1. Cell

2. cell theory

3. Organismal theory

4. resolving power

Explanation:

The cell is the smallest known unit of all living organisms. They are called the building blocks of life. An organism can be unicellular (made up of one cell) or multi-cellular (made up of many cells).

2. Cell theory was formulated and developed  by Schleiden, Schwann, and Virchow. They are considered as the basic principles of biology.

It states:

1. Living organisms are made up of cells.

2. Cells are the basic unit of life.

3. Cells are formed from pre-existing cells.

4. Energy flows inside the cell.

5. DNA is passed on from cell to cell.

6. All cells have the same basic chemical composition.

3. Organismal theory is the intended counter-argument of the cell theory. It was developed by Reichert, Strasberger, Sherrington, and Pavlov. It argues that the basic unit of life is the organism itself, suggesting that an organism came about from a cell that expanded.

4. Resolving power is the ability of an optical instrument like a microscope or a telescope to view objects that are close together as separate, abling the viewer to distinguish the two from each other.

5 0
2 years ago
Mrs. Jorgensen keeps a flock of chickens in her back yard. One of the roosters is the result of selective breeding by Mrs. Jorge
elena-14-01-66 [18.8K]

Answer:

Ostrich nevermind dont put  that

Explanation:

5 0
3 years ago
How do you know any reaction has reached chemical equilibrium
Aleksandr [31]

Answer:

Naci is a dangerous acid. For ex suphiric acid . when you test this acid you realised that' it is dangerous because of its widespread use. Naci means Nitric acid collide with other acid that don't make any reaction with other acid.Its has own reaction With sodium hydroxide forms to perform a neutral solution.

8 0
3 years ago
The hard outer covering of an animal is a(n) ___________.
RUDIKE [14]

Answer:

exoskeleton

Explanation:

An exoskeleton is the hard outer covering that supports and protects some animals without backbones.

Hope this helped!!!

3 0
2 years ago
Read 2 more answers
Which of the following is correctly matched with its tissue system?
Sonbull [250]

The following is correctly matched with its tissue system is -

4) stele/vascular tissue system

Stele is the the central core/cylinder of the stem and root of a vascular plant, consisting of the xylem and phloem and other supporting tissues. Vascular plants include clubmosses, horsetails, ferns, gymnosperms etc.

3 0
3 years ago
Other questions:
  • HELP FAST PLEASE!!!!!!!!<br> What are the identifying features of carbohydrates
    10·2 answers
  • A client has received atropine sulfate intravenously during a surgical procedure. the nurse monitors the client for which side e
    7·1 answer
  • What kinds of plants were transformed into coal? bryophytes gymnosperms ferns and their relatives angiosperms?
    14·1 answer
  • Organisms that can produce their own food from an external source of energy without having to eat other organisms are called
    12·1 answer
  • Which example best represents the adhesion, cohesion, and surface tension of water?
    14·1 answer
  • While breathing into a plastic bag what happens to the levels of carbon dioxide in your blood?
    6·1 answer
  • In the scientific name Limulus polyphemus, what is the genus? _________ species? _______.
    9·1 answer
  • What role does intraspecies competition play in natural selection?
    6·1 answer
  • How are each of the rock types created (igneous, sedimentary, and metamorphic) created?
    7·1 answer
  • Help please! i'm not entirely bad at biology but things like this i don't know lol
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!