Similarities: both have cell membranes, DNA, cytoplasm
Differences: only eukaryotic cells have mitochondria/chloroplasts, nuclear membrane, endoplasmic reticulum, DNA in a chromosome
Answer:
The most likely hormone released to Gina and her body deal with this dangerous and frightening situation is the adrenaline or epinephrine.
Explanation:
Adrenaline, also called <em>epinephrine</em>, is a <u>neurotransmitter</u> secreted to the bloodstream by the adrenal gland. <u><em>Under pressure or stress</em></u>, it is considered to be a survival hormone, as it <em>triggers physiological changes </em>in the body necessary to be fast or strong.
Adrenaline increases heart beating, blood pressure, stimulates breathing and dilation of the respiratory tract. It also increases glucose concentration in blood. It is responsible for the attack, defend or escape reactions.
Answer:
15%
Together, adenine and thymine compose 70% of the segment. This means that 30% of the section is composed of guanine-cytosine pairs. Since these two bases will be equal in quantity, 15% of the DNA section will be cytosine bases.
He/she would be able to conclude that due to the lack of uracil and presence of double strands that the molecule is DNA and not RNA.
Answer:
The cardiac muscle is made up of branched muscle cells, which have 1 or 2 nuclei and which the contact area between the heart fibers gives rise to specialized regions at the level of the plasma membrane called intercalary discs. The intercalary discs unite the cardiac muscle cells with each other, which provides greater adhesion to the tissue and intervenes in the rapid communication between cells. This allows its simultaneous contraction and the production of the beat.
Explanation:
The intercalary discs are the union systems that associate the cardiac muscle cells to form the myocardial fibers, the cardiac muscle is the muscle tissue of mixed components, which is located exclusively in the walls of the heart. For this reason, it has the function of generating the necessary contractions for the blood to reach all parts of the body.The intercalary discs are a special type of intercellular junction, a gap that guarantees electrical communication between these cells; and on the other hand, it provides places of adhesion and anchorage of one cell with another. The intercalary discs provide the structural foundation that allows the heart to behave as a functional syncytium.
