A physician who analyzes cells, tissues, and organs to diagnose disease is called a pathologist.
Answer:
<em>The correct option is B. It is unchanged and can be used for the same chemical reaction.</em>
Explanation:
Enzymes can be described as proteins which act as biological catalysts. Enzymes can speed up a reaction. During this process, the enzyme itself doesn't get consumed and hence, it can be reused. Enzymes are specific for a particular type of substrate and hence, they can catalyze only those reactions for which they are specific. Hence, option B is correct.
Other options like option A is not correct because the mass of an enzyme will not change after a reaction.
Electrical signals are relayed from the retina to the brain
The correct option is C.
The tRNA is the only type of RNA that can come in contact with the ribosomes in the cytoplasm. During the translation process of protein synthesis in the cell, the tRNA function by carrying amino acid to the ribosomes and matching the codon in the mRNA with the amino acid it codes for. Thus it acts as a bridge between mRNA and ribosomes.
The term "cardiac" refers to the heart. Cardiac muscle is found in the heart and nowhere else in the body.
