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2 years ago

The region known as the macula densa is part of

Biology

1 answer:

Dafna1 [17]2 years ago

7 0

The region known as the macula densa is part of excretory system.

More precisely, macula densa is a structure located in the kidney, in the wall of the distal tubule. The macula densa is composed of tightly packed specialized cells on the place where the distal tubule touches the glomerulus.

The role of this structure is to detect changes in concentration of sodium chloride and to send a signal to the afferent arterioles (to change blood pressure) or to the juxtaglomerular cells (renin release).

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Which of the peas traits yellow or green, is dominant? Explain your answer

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Yellow because both offspring are yellow

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The ventricle has thicker, more muscular walls than the atria. Relate this difference in wall structure to the functions of the

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2 years ago

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suppose a cell wishes to make a protein that has 100 amino acid. How many water molecules will be created in the making of this

slega [8]

The answer is 99.

Amino acids <span>contain a carboxyl group (carbon-containing) and an amino group (nitrogen containing). Proteins are made by forming peptide bonds between the carboxyl and amino group of amino acids.
</span>If a protein is made of 100 amino acids, that means there are 99 peptide bonds (because the last, 100th amino acid will not bind the next (101st) amino acid). For each peptide bond that is created, one oxygen atom and two hydrogen atoms are taken. Therefore, one water molecule is created for each peptide bond. If there are 99 peptide bonds, 99 water molecules are created.

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3 years ago

Approximately how far, in cm, does the blood move during one beat? Express your answer to two significant figures and include th

Marysya12 [62]

Answer:

7.5cm

Explanation:

Velocity vs Time Graph:

When the object is going along the plane with velocity v at a particular time interval t we can explain it's motion via the velocity vs time graph. If the velocity of the object is constant then velocity vs time graph will produce a horizontal straight line. If the amount of differentiation of velocity of the object is positive and constant then the graph shows the linear line whose slope is is the same as the ratio of the change in velocity to the time interval.

Velocity vs time graph:

Is shown in the attached image

A velocity-time graph helps us to estimate the distance traveled by using the area under the graph.

Height of the triangle is the velocity (v) = 0.75m/s

The base of the triangle is the time interval (t) = 0.2sec

Distance travelled = Area of triangle

Distance travelled

= 1/2(V) * t

= 1/2(0.75m/s) * 0.2s

= 0.0075m

=7.5cm

Thus, during one beat blood flows 7.5 cm

3 0

3 years ago