How do external regulators respond to events outside of the cell

1 answer:

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Proteins that respond to events outside the cell are called external regulators. External regulators direct cells to speed up or slow down the cell cycle. Cancer is a disorder in which some of the body's own cells lose the ability to control growth.

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A toxin has been developed that specifically denatures respiratory enzymes found in the matrix of the mitochondria. What will ha

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Answer: Aerobic respiration will not take place and the animal will lose large amounts of ATP.

Explanation:

Mitochondria is the powerhouse that converts product of glycolysis that occurs in the cytoplasm into energy and release carbon dioxide as a byproduct. In the presence of oxygen (aerobic), products of glycolysis such as pyruvate enters the mitochondria, joins the kreb cycle and the electron transport chain yielding a large amount of energy or ATP.

Aerobic respiration that yield large amounts of ATP strictly occus in the mitochondrial matrix whereas anearobic respiration occurs in the cytoplasm.

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Which of the following is an example of an organism maintaining

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Answer:

Shivering to generate heat on a cold day

Explanation:

The body reacts to create a stable internal environment.

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An adult with the diagnosis of schizophrenia is admitted to the psychiatric hospital. the client is ungroomed, appears to be hea

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If an adult with the diagnosis of schizophrenia is admitted to the psychiatric hospital during the first few hospital days the nurse should seek out the client frequently in order to spend short periods of time together. Seeking out the client frequently to spend short periods of time together will help the nurse establish trust without increasing the person's anxiety. Seeing that the client bathes and changes clothes daily is not a priority unless the client is super and extremely dirty; this client is ungroomed, not dirty. A withdrawn client will usually not approach anyone and the client's history reveals a failure to speak.

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A natural function of the body necessary to support life is called _________________

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Answer:brain

Explanation:

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2. Beginning with the superior vena cava, trace the path followed by a red blood cell as it passes into and through the heart, t

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Answer:

BLOOD PATHWAY:

Body > superior and inferior vena cava > right atrium > tricuspid valve > right ventricle > pulmonary semilunar valve > pulmonary artery > lungs > pulmonary vien > left ventricle > bicuspid/mitral valve> left ventricle > Aortic semilunar valve > Aorta > Body

The pathway goes like this:

From the body (we don't say first because this is a cycle), unoxygenated blood collected goes to the heart via the INFERIOR and SUPERIOR VENA CAVA then it empties into the RIGHT ATRIUM from there it passess through a valve called TRICUSPID valve, which prevents backflow of blood to the right atrium. The blood goes to our first pumping chamber, RIGHT VENTRICLE. The right ventricle pumps the blood through the PULMONARY SEMILUNAR VALVE which leads to the PULMONARY ARTERIES, which happens to be the only arteries that carry unoxygenated blood. From there it goes to the lungs to pick up oxygen and rid itself of carbon dioxide. The blood then goes back into the heart via the PULMONARY VEINS and like the latter, they are the only veins that carry oxygenated blood.

The blood then goes back into the heart, emptying into the LEFT ATRIUM. From there it goes through the BICUSPID VALVE or MITRAL VALVE and to the last and thickest pumping chamber, the LEFT VENTRICLE. The left ventricle pumps the blood through the AORTIC SEMILUNAR VALVE which opens out to the AORTA.

And at last, it goes back to your body.

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