Which of the following chemicals opens us binding sites allowing muscle filaments to connect to each other? Select one:

Biology

1 answer:

HACTEHA [7]3 years ago

3 0

Answer:

The correct answer will be option-D.

Explanation:

Calcium plays an important role in muscle contraction as they are released from the sarcoplasmic reticulum after they receive electric impulse.

Calcium triggers the muscle contraction cycle as these calcium ions bind to the troponin-tropomyosin complex. This binding exposes the myosin-binding site on the actin on which high energy myosin binds and cross-bridge is formed.

This cross-bridge formation causes the contraction of the sarcomere and therefore muscle contracts.

Thus, option-D is the correct answer.

You might be interested in

What is produced in transcription?

Mama L [17]

RNA molecules are produced during transcription, the molecules being the ribonucleotides of mRNA

4 0

3 years ago

The discontinuous aspect of replication of DNA in vivo is caused by ________.

pychu [463]

Answer:

The 5' and 3' polarity restriction

Explanation:

Discontinuous replication is when synthesis of new DNA molecule takes place as a series of short fragments that will subsequently be joined together.

These fragments are called the Okazaki fragments.

DNA synthesis takes place from 3' to 5' end. However due to 5' and 3' polarity. The replication has to be discontinuous due to the synthesis happening backwards and okazaki fragments being formed.

3 0

2 years ago

Identify the structures a virus can contain. Check all that apply.

Lunna [17]

The structures a virus can contain are
-nucleic acid
-envelope
-capsid

5 0

2 years ago

Read 2 more answers

What is the study of organisms at the early stages of development

mafiozo [28]

Answer:

In developmental biology, embryology would be the early cellular stages of development.