For the first question-a bicep is a large muscle in the upper arm which flexes the arm and forearm, a tricep is a large muscle at the back of the upper arm and a deltoid is a thick triangular muscle covering the shoulder joint and used for raising the arm away from the body.
In cardiac muscle
a. an action potential spreads throughout the Z discs.
b. intercalated discs connect the muscle fibers together.
c. calcium enters the cell from storage chambers called intercalated discs.
d. potassium is released from the sarcoplasmic reticulum
Answer:
b. intercalated discs connect the muscle fibers together.
Explanation:
Intercalated discs are components of the muscles found in the heart(cardiac muscles).
Intercalated discs join the cardiomyoctes (muscle cells or fibers) together so that they can function as one and transmit signals amongst themselves during the contraction of the heart.
Intercalated discs are made of up desmosomes and gap junctions.
Intercalated discs are found on the lining of the sacromere and can only be seen by using a microscope to observe the longitudinal section of the heart tissue.
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Answer:
After this, rRNA creates bonds between <u>amino acids</u> to make <u>proteins.</u>
<u>Some important points to know:</u>
rRNA (Ribosomal RNA) is used in the synthesis of proteins.
Amino acids are the building blocks of proteins which means that proteins are made up of amino acids.
When amino acids are joined together, they form proteins.
The bond between two or more amino acids when bonded is called "peptide bond".
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Hope this helped!
<h3>~AH1807</h3>