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Natalija [7]
3 years ago
14

The mitochondrion is host to which portion of cellular respiration?

Biology
2 answers:
Lemur [1.5K]3 years ago
8 0

Glycolysis  happens in the cytoplasm

Kerbs cycle,and the electron transport chain  happens in the mitochondria.


The answer is (D) The Krebs cycle


Tomtit [17]3 years ago
3 0
The correct answer should be (d) The Krebs cycle

After Glycolysis, the Krebs cycle begins in the matrix of the mitochondrion.
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Write a brief paragraph as to how each condition affects blood flow
xxTIMURxx [149]

Answer:

Pulse Pressure

As shown in Figure 1, the difference between the systolic pressure and the diastolic pressure is the pulse pressure. For example, an individual with a systolic pressure of 120 mm Hg and a diastolic pressure of 80 mm Hg would have a pulse pressure of 40 mmHg.

Generally, a pulse pressure should be at least 25 percent of the systolic pressure. A pulse pressure below this level is described as low or narrow. This may occur, for example, in patients with a low stroke volume, which may be seen in congestive heart failure, stenosis of the aortic valve, or significant blood loss following trauma. In contrast, a high or wide pulse pressure is common in healthy people following strenuous exercise, when their resting pulse pressure of 30–40 mm Hg may increase temporarily to 100 mm Hg as stroke volume increases. A persistently high pulse pressure at or above 100 mm Hg may indicate excessive resistance in the arteries and can be caused by a variety of disorders. Chronic high resting pulse pressures can degrade the heart, brain, and kidneys, and warrant medical treatment.

Mean Arterial Pressure

Mean arterial pressure (MAP) represents the “average” pressure of blood in the arteries, that is, the average force driving blood into vessels that serve the tissues. Mean is a statistical concept and is calculated by taking the sum of the values divided by the number of values. Although complicated to measure directly and complicated to calculate, MAP can be approximated by adding the diastolic pressure to one-third of the pulse pressure or systolic pressure minus the diastolic pressure:

\displaystyle \text{MAP}=\text{diastolic BP}+\frac{(\text{systolic}-\text{diastolic BP})}{3}MAP=diastolic BP+

​3  

Pulse

After blood is ejected from the heart, elastic fibers in the arteries help maintain a high-pressure gradient as they expand to accommodate the blood, then recoil. This expansion and recoiling effect, known as the pulse, can be palpated manually or measured electronically. Although the effect diminishes over distance from the heart, elements of the systolic and diastolic components of the pulse are still evident down to the level of the arterioles.

This image shows the pulse points in a woman’s body.

Figure 2. The pulse is most readily measured at the radial artery, but can be measured at any of the pulse points shown.

Because pulse indicates heart rate, it is measured clinically to provide clues to a patient’s state of health. It is recorded as beats per minute. Both the rate and the strength of the pulse are important clinically. A high or irregular pulse rate can be caused by physical activity or other temporary factors, but it may also indicate a heart condition. The pulse strength indicates the strength of ventricular contraction and cardiac output. If the pulse is strong, then systolic pressure is high. If it is weak, systolic pressure has fallen, and medical intervention may be warranted.

Pulse can be palpated manually by placing the tips of the fingers across an artery that runs close to the body surface and pressing lightly. While this procedure is normally performed using the radial artery in the wrist or the common carotid artery in the neck, any superficial artery that can be palpated may be used. Common sites to find a pulse include temporal and facial arteries in the head, brachial arteries in the upper arm, femoral arteries in the thigh, popliteal arteries behind the knees, posterior tibial arteries near the medial tarsal regions, and dorsalis pedis arteries in the feet. A variety of commercial electronic devices are also available to measure pulse.

Explanation:

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3 years ago
The sun uses chemical energy as a source for its energy.<br> True<br> False
Lostsunrise [7]
Truuueeee!!!! Hope this helpssss
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Which organism obtains its energy from other organisms?
meriva
The answer is D. A, B, and C all use photosynthesis, and make their own energy. A cougar relies on killing other animals to get energy. I hope this helps!
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3 years ago
Which figure has an orthocenter outside the triangle?
Lena [83]

Answer:

Orthocenter of a Triangle

The orthocenter of a triangle is the point where the perpendicular drawn from the vertices to the opposite sides of the triangle intersect each other.

• For an acute angle triangle, the orthocenter lies inside the triangle.

• For the obtuse angle triangle, the orthocenter lies outside the triangle.

• For a right triangle, the orthocenter lies on the vertex of the right angle.

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2 years ago
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The science that includes the study of tumor cells, macrophages and protein synthesis is called
GalinKa [24]

The science of Cancer Biology focuses on the study of the different mechanisms and fundamental process of cell growth, the transformation of normal to cancer cells, and the metastasis or spread of these cancer cells to other parts of the body.  


As such, it includes the study of how tumor cells develop and grow. It also includes studying how the immune system responds to cancer cells, thus including macrophages and their response to the presence of pathogens and cancer cells.  Underlying all these is the inclusion of a study on protein synthesis as it is the process where biological cells build and create new specific proteins in the body.



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3 years ago
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