<span>Lipids are fat,play multiple roles in the body. Fats are broken down in the digestive tract to form individual fatty acids and cholesterol molecules. Fatty acids and cholesterol are key components of the membranes that surround all cells
</span><span>Proteins are large and fairly complex molecules that are responsible for doing most of the work that occurs in cells. They also are needed to maintain the structure of cells and are critical for the function and regulation of all of the body's tissues. T</span>
Answer:
is the higher number of a blood pressure reading.
Explanation: systolic blood pressure is the higher number of a blood pressure reading and its measure in millimeter of mercury.
Systolic pressure is the amount of pressure in the arteries when contraction takes place in heart. Diastolic pressure is the pressure the heart when it relaxes. It is the lower number of blood pressure reading
When the systolic pressure is >120mm Hg and diastolic is less than 80mm Hg it is normal
120-129mm Hg and diastolic less than 80mm Hg it high and such person needs a regular medical check up
But when systolic 129-139 mmHg
and diastolic is 90mm Hg or above it means the individual is having hypertension stage 1
Above 140mm Hg is hypertension stage 2 and it is the most severe stage. It means the person is hypertensive and medical attention needs to be seek for necessary treatment as this could lead to death of such individual if not well managed.
Answer:
Water channel proteins help molecules move through a cell membrane.
Answer:
The repolarization phase of an action potential results from <u>the opening of voltage-gated K channels.</u>
Explanation:
Repolarization is the change in the potential of the membrane of the neuron. It returns the membrane to the negative value which was changed to a positive value during depolarization. During repolarization, the sodium channels are slowly closed and the potassium channels open up. The potassium channels are voltage-gated.
Depolarization causes a positive change in the membrane potential by opening the sodium channels and closing the potassium channels. The opening of the sodium and potassium channels aids in the depolarization and repolarization along with the closing of potassium and sodium channels respectively.
Learn more about repolarization here:
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