1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
agasfer [191]
3 years ago
6

Explain TWO likely effects of a relatively small number of red blood cells on the body

Biology
1 answer:
OleMash [197]3 years ago
6 0

Answer:

Red blood cells (erythrocytes)

The red blood cells are highly specialized, well adapted for their primary function of transporting oxygen from the lungs to all of the body tissues. Red cells are approximately 7.8 μm (1 μm = 0.000039 inch) in diameter and have the form of biconcave disks, a shape that provides a large surface-to-volume ratio. When fresh blood is examined with the microscope, red cells appear to be yellow-green disks with pale centres containing no visible internal structures. When blood is centrifuged to cause the cells to settle, the volume of packed red cells (hematocrit value) ranges between 42 and 54 percent of total volume in men and between 37 and 47 percent in women; values are somewhat lower in children. Normal red blood cells are fairly uniform in volume, so that the hematocrit value is determined largely by the number of red cells per unit of blood. The normal red cell count ranges between four million and six million per cubic millimetre.

The red blood cell is enclosed in a thin membrane that is composed of chemically complex lipids, proteins, and carbohydrates in a highly organized structure. Extraordinary distortion of the red cell occurs in its passage through minute blood vessels, many of which have a diameter less than that of the red cell. When the deforming stress is removed, the cell springs back to its original shape. The red cell readily tolerates bending and folding, but, if appreciable stretching of the membrane occurs, the cell is damaged or destroyed. The membrane is freely permeable to water, oxygen, carbon dioxide, glucose, urea, and certain other substances, but it is impermeable to hemoglobin. Within the cell the major cation is potassium; in contrast, in plasma and extracellular fluids the major cation is sodium. A pumping mechanism, driven by enzymes within the red cell, maintains its sodium and potassium concentrations. Red cells are subject to osmotic effects. When they are suspended in very dilute (hypotonic) solutions of sodium chloride, red cells take in water, which causes them to increase in volume and to become more spheroid; in concentrated salt solutions they lose water and shrink.

When red cell membranes are damaged, hemoglobin and other dissolved contents may escape from the cells, leaving the membranous structures as “ghosts.” This process, called hemolysis, is produced not only by the osmotic effects of water but also by numerous other mechanisms. These include physical damage to red cells, as when blood is heated, is forced under great pressure through a small needle, or is subjected to freezing and thawing; chemical damage to red cells by agents such as bile salts, detergents, and certain snake venoms; and damage caused by immunologic reactions that may occur when antibodies attach to red cells in the presence of complement. When such destruction proceeds at a greater than normal rate, hemolytic anemia results.

Explanation:

You might be interested in
Please please help i will give brainalist and extra points
Llana [10]

Answer:

I'm pretty sure the answers for this is D, C, and B.

8 0
3 years ago
which of the following is NOT an acceptable name for the Golgi? A. complex. B.mechanism C. apparatus
den301095 [7]
Maybe B? Lmk if I’m wrong
6 0
3 years ago
Traits, conditions, or diseases that are passed down through families through one of the X or Y chromosomes.
jonny [76]
Traits that are passed down on an X or a Y chromosome are sex-linked traits. Most of the time males are affected by sex-linked traits because males only have one X and a Y. The Y is the chromosome that makes a man, a man.
6 0
3 years ago
Read 2 more answers
Interpret the chemical reaction - what is the overall purpose of photosynthesis?
juin [17]
<h2><em>interpret the chemical reaction - what is the overall purpose of photosynthesis?</em></h2>

  • <em>The main purpose of photosynthesis is </em><em><u>to convert radiant energy from the sun into chemical energy that can be used for food.</u></em><em> </em><em>Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP.</em>

<em>hope </em><em>it</em><em> helps</em>

<em>#</em><em>c</em><em>a</em><em>r</em><em>r</em><em>y</em><em> </em><em>on</em><em> learning</em><em> </em>

<em>follow </em><em>me </em><em>and </em><em>mark </em><em>me</em><em> as</em><em> brainlist</em><em> plss</em>

5 0
3 years ago
Read 2 more answers
Before a volcanic eruption:
Andreyy89

\huge\underline\bold\blue{ƛƝƧƜЄƦ}

⭐The temperature of groundwater near a volcano <u>Increase</u>

⭐The amount of gases released from a volcano<u> </u><u>Increase</u>

⭐The strength of earthquakes close to the volcano <u>Increases</u><u>.</u>

⭐The shape of the volcano <u>Increases</u>

5 0
2 years ago
Other questions:
  • Is glucose more or less complex than the rest of the biomolecules ?
    10·1 answer
  • Energy from sunlight can excite electrons, kicking them out of their orbitals and creating freeradicals. Free radicals are highl
    10·1 answer
  • Describe four types of landforms found in Florida.
    12·1 answer
  • A species has 6 chromosome pairs in each diploid cell. how many genetically unique gametes could be produced from sexual reprodu
    13·1 answer
  • Isolated thylakoids were incubated in an acidic solution at pH 4 until the pH was equilibrated across the thylakoid membrane. Th
    11·1 answer
  • A client with venous insufficiency is instructed to exercise, apply elastic stockings, and elevate the extremities. Which is the
    14·1 answer
  • Chapter 19- The Cardiovascular System: The Blood Choose the single best answer to each question.
    6·1 answer
  • A major difference between sound recordings made by Emile Berliner and those made by Thomas Edison was that ______. Group of ans
    11·1 answer
  • PLEASE HELP ME WITH THIS QUESTION
    9·2 answers
  • Which of the following is the first principle of cell theory?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!