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Ludmilka [50]
4 years ago
6

The circulating red blood cell is metabolically active but is only able to live for 120 days. During this short time, some signi

ficant enzymes are gradually broken down and this may contribute to the death of the cell. Explain why the red blood cell is not able to replace important enzymes that have been broken down.
Biology
1 answer:
OLEGan [10]4 years ago
7 0

Answer: They lack nucleus and other organelles important for the synthesis of the enzyme.

Explanation:

The main function of the red blood cells is to supply oxygen throughout the body. The oxygen binds to the hemoglobin and travels throughout the body to ensure the supply of oxygen to various organs and more precisely the cells of the body.

The enzymes that is being synthesized inside the body is produced by the help of the gene and nucleus along with the other organelles involved in it.The mature red blood cells lack nucleus in order to increase the surface area for carrying the oxygen.

As there is no nucleus, mitochondria and golgi apparatus in the cell, there is no enzyme synthesis and broke down in the cell.

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Answer:

A) The Moon Spins Slowly

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2. A barrel floats down a river past two flags that are 100 meters apart. The time it took for the barrel to pass each flag is s
Ksju [112]

The speed of the stream's current is 3.6 m/s.

The given parameters:

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  • time when it passed the first flag, t₁ = 2:15
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<h3>What is speed?</h3>
  • The speed of an object describes the rate of change of an object's distance.

The change in the time of motion of the barrel is calculated as follows;

Δt = t₂ - t₁

Δt = 2:43 - 2:15

Δt = 2 min 43 s - 2 min 15 s

Δt = 43 s - 15 s

Δt = 28 s

The speed of the stream's current is calculated as follows;

v = \frac{d}{t} \\\\v = \frac{100 \ m}{28 \ s}\\\\v = 3.57 \ m/s\\\\v \approx 3.6 \ m/s

Thus, the speed of the stream's current is 3.6 m/s.

Learn more about speed here: brainly.com/question/6504879

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2 years ago
Mitosis begins in which cell organelle?
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The correct answer I think is D. The nucleus
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This is the First Law of Thermodynamics. It's also called the Law of Conservation of Energy.
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