<span>. Messenger RNA (mRNA) is
synthesized from a gene segment of DNA which ultimately contains the
information on the primary sequence of amino acids in a protein to be
synthesized. The genetic code as translated is for m-RNA not DNA.
The messenger RNA carries the code into the cytoplasm where protein
synthesis occurs. The cell does
not contain large quantities of mRNA. This is because mRNA, unlike other RNAs
is constantly undergoing breakdown.
2. In
the cytoplasm, ribsomal RNA (rRNA) and protein combine to form a
nucleoprotein called a ribosome. The ribosome serves as the site and
carries the enzymes necessary for protein synthesis. The ribosome attaches
itself to m-RNA and provides the stabilizing structure to hold all substances
in position as the protein is synthesized. Several ribosomes may be attached to
a single RNA at any time. </span>
<span>
3. Transfer
RNA (tRNA) contains about 75 nucleotides, three of which are called
anticodons, and one amino acid. The tRNA reads the code and carries the
amino acid to be incorporated into the developing protein. Part of the
tRNA doubles back upon itself to form several double helical sections. The
tRNA "reads" the mRNA codon by using its own anticodon. The actual
"reading" is done by matching the base pairs through hydrogen bonding
following the base pairing principle. Each codon is "read" by various
tRNA's until the appropriate match of the anticodon with the codon occurs.</span>
Option C is correct.
<h3>What do you mean by muscle cell?</h3>
The cells that make up muscular tissue are referred to as myocytes or muscle cells.
No oxygen is used during anaerobic respiration, hence less energy is released. During intense exercise, the glucose molecule splits into two molecules of lactic acid, which accumulate in the muscles. When the bloodstream cannot provide oxygen quickly enough for aerobic respiration, anaerobic respiration takes place.
The option missing is the query is given below:
A. Carbon dioxide will move into the cell by diffusion.
B. Carbon dioxide and oxygen will move out of the cell by osmosis.
C. Oxygen will move into the cell by diffusion.
D. Oxygen and carbon dioxide will move into the cell by osmosis.
Learn more about muscles cell here:
brainly.com/question/17355566
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The anatomical number is determined by adding the protons and neutrons which are located in the center of the atom
Answer:
The correct answer will be option-They have about the same endurance as skeletal muscle fibers.
Explanation:
Cardiac muscle is one of the three types of muscle which is present in the Heart of the organism.
The muscle fibres of the cardiac muscle possess a high amount of myoglobin- an Oxygen carrying molecule which can store the oxygen for some time.
The cardiac muscles have to pump blood in the body, for which they require a high amount of ATP, so they possess larger mitochondria.
The studies have shown that the cardiac muscles store glycogen carbohydrate which is used during the relaxation phase in stress conditions.
Since the cardiac muscles do not have the same endurance as the skeletal muscles which with physical exercise can be increased therefore the selected option is the correct answer.
All of the above. Good luck with the bio
