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Blood
Blood is a bodily fluid consisting of plasma, blood cells, and platelets that is circulated by the heart through the vertebrate vascular system, carrying oxygen and nutrients to and waste materials away from all body tissues. In many species, it also carries hormones and disease-fighting substances. In this category, you will find questions about the blood in your body, including blood types, blood diseases, and the function of blood.
9,936 Questions
What is the differecne between reticulocyte and erythrocyte?
Reticulocytes are immature red blood cells that still contain some organelles, while erythrocytes are mature red blood cells that have lost their organelles and are responsible for oxygen transport. Reticulocytes are typically found in the bloodstream for a short period before maturing into erythrocytes.
What makes red blood cells bind oxygen to their structure?
Red blood cells contain hemoglobin, a protein that binds to oxygen. Hemoglobin has iron ions that attract oxygen molecules and form a reversible bond with them. This allows red blood cells to transport oxygen from the lungs to tissues throughout the body.
Is blood blue if you did not have red blood cells?
Everyone has red blood cells. You could not live otherwise.
When someone says 'blue blood' they are speaking metaphorically or comparatively.
There is a common misunderstanding about the color of blood that unfortunately actually sometimes is passed along by elementary school biology teachers who are not up to date. Your blood is never blue, always shades of red.
When arterial blood leaves the lungs to circulate through the body, it has just a little bit more oxygen in it than does venous blood. The reason it appears bright red is that the combination of iron, oxygen, and hemoglobin absorbs higher energy wavelength light (blue and green) which leaves the red wavelengths available for our eyes to sense.
The venous blood is never blue, it is a darker color of red than arterial blood, not blue. The color is a burgundy red or maroon color. Blood is bright red in the arteries and dark red in the veins. The reason venous blood is a darker red can be partially attributed to the slightly less oxygen in the blood in the veins. But its color change is more due to the "waste" it carries away from the body tissues and back to the kidneys for filtering and elimination. This "waste" darkens the red color of the blood (think of it as a little like dirty dish water).
Although a popular belief, being in contact with air does not cause venous blood to instantly oxygenate and turn red. It is red outside the body because it is red inside the body as well. When you look at unopened veins inside the body, in endoscopy, for example, they are a dark red color.
The blue appearance of the veins that you see when looking at them through the skin is not caused by blue venous blood. As explained, that is always red. The blue appearance is caused by a reflective factor of the skin itself. It is an optical property of the reflection of light off light colored skin and the difference in that reflection from the veins under the skin (but near the surface). That reflective process is complex, but the blue-looking veins are mostly all about the skin and reflection.
If arteries were not too deep to be visible through the skin, then they, too, would have a blueish appearance, the same as the veins for the same reasons.
The blue color of cyanotic lips and skin is not because the blood is blue.
What does white blood cells do to dead cells?
White blood cells help to clear away dead cells by engulfing and breaking them down through a process called phagocytosis. This helps to remove dead cells and prevent the buildup of cellular debris, which can be harmful if left unchecked.
Are granulocytes called neutrophils phagocytic and the most numerous of all white blood cells?
Yes, granulocytes include neutrophils, which are known for their phagocytic activity. Neutrophils are the most abundant type of white blood cell in the body and play a crucial role in the immune response against bacterial infections.
What happens if red blood cells were placed into breaker with plasma?
If red blood cells were placed into a beaker with plasma, the red blood cells would absorb the liquid and start to expand due to the osmotic pressure. Eventually, the red blood cells may burst (hemolysis) if the osmotic pressure is too high compared to their structural integrity. This would release hemoglobin into the plasma.
What does it mean when you don't have any white blood cells?
Having no white blood cells is a condition called leukopenia, which can be caused by factors such as infections, medications, autoimmune disorders, or certain medical treatments like chemotherapy. It weakens the body's immune system, making individuals more susceptible to infections. Treatment depends on the underlying cause and may involve addressing the root issue or boosting white blood cell production.
How many red blood cells does bone manufacture every day?
The human body will compensate for the amount of red blood cells that die every day by producing around the same amount that was lost. Typically, 1% of the total amount of red blood cells die everyday. Therefore, 1% of the body's total red blood cell count will be produced every day.
What is the selective advantage of a mature red blood cell being flat rather than a sphere?
The selective advantage of a mature red blood cell being flat rather than a sphere is that is it easier for the cells to fit through veins and arteries. Red blood cells are also known as erythrocytes.
When red blood cells retire they filter through the liver and out in your stool?
Red blood cells are broken down in the liver and spleen, releasing iron and other components for recycling. Any waste products are excreted in the stool as bilirubin, giving stool its characteristic brown color after processing by gut microbes.
What test is used to identify the makeup of the surface of the red blood cell?
A blood smear test is commonly used to identify the makeup of the surface of a red blood cell, including its morphology, size, shape, and presence of abnormalities like irregularities or parasites. This test involves preparing a thin blood sample on a glass slide for microscopic examination by a medical professional.
If the parents are blood Type O and Type B what might their children's blood types be?
We are looking for the possible blood types of a baby.
Parental information:
- Mother type O -- can only be OO = contributes O gene
- Father type B -- can be BB or BO = contributes B or O gene
- Baby is type BO
- Baby is type OO
HOWEVER: There is more to ABO blood typing that just the ABO gene.
There is also an inhibitory gene that will change any genotype into the phenotype O.
Therefore a person with genetically AB blood can be tested as having Type O.
If the Type O parent has the inhibitory gene affecting his Type A, B or AB blood, then the baby may be Type A or AB.
Can parents having same blood group 0 positive give birth to a child with blood group 0 negative?
Yes, parents with blood group O positive can have a child with blood group O negative. This is possible if one parent is heterozygous for the Rh factor (one parent has both positive and negative Rh alleles), allowing for the possibility of the child inheriting the negative Rh factor.
Yes, leukocytosis is a condition where there is an elevated white blood cell count, typically above 11,000 cells per cubic millimeter. It can be caused by various factors such as infections, inflammatory conditions, or stress. Further investigation is usually needed to determine the underlying cause of leukocytosis.
What will bring white blood cells to the site of an infection more quickly?
Chemical signals released by damaged cells or bacteria, known as chemotaxis, will attract white blood cells to the site of infection more quickly. Inflammatory mediators such as cytokines and histamines also play a role in promoting the migration of white blood cells to the infected area.
What organelle is a white blood cell or a phagocyte?
White blood cells and phagocytes contain organelles called lysosomes, which are responsible for breaking down and digesting foreign particles, such as bacteria and viruses, that the cell engulfs during the process of phagocytosis.
What blood cells have lobed nuclei and red cytoplasmic granules?
Neutrophils are blood cells that have lobed nuclei and red cytoplasmic granules. They are a type of white blood cell that plays a key role in the body's immune response by engulfing and destroying bacteria and other harmful organisms.
Are all blood cells exactly the same?
No, there are different types of blood cells, each with specific functions. The main types of blood cells are red blood cells, white blood cells, and platelets. They vary in size, shape, and function.
Why does the nattharick's solution not do the lysis of white blood cells?
The Nattharick's solution does not cause lysis of white blood cells because it is an isotonic solution, meaning it has the same osmotic pressure as the cells. This balance in osmotic pressure prevents the solution from causing the white blood cells to take up too much water or lose too much water, which would result in cell lysis.
Blood itself is not the buffer. Hemoglobin is, controlling the pH because it binds to oxygen, carbon dioxide, and most importantly hydrogen ions. If hydrogen ions were produced without hemoglobin, the pH would rise very quickly and the human body would fail.
If a structure in the shoulder of a human is found to carry oxygen-rich red blood cells, it would likely be an artery rather than a typical bone or joint structure. This could indicate a variation in the anatomy or a medical condition, such as a vascular anomaly or abnormal blood vessel formation. Further evaluation by a medical professional would be needed to determine the cause and potential implications of this finding.
What does Leukemia do to white blood cells Anddd How do white blood cells function in the body?
Leukemia is a type of cancer that affects the bone marrow and causes an overproduction of abnormal white blood cells. These abnormal white blood cells do not function properly and can crowd out the normal white blood cells, leading to a weakened immune system. White blood cells are a crucial part of the immune system and are responsible for defending the body against infections. They work by detecting and destroying foreign invaders like bacteria and viruses.
This cross AO X BO, would yield that genotype.
This cross, AA X BO, would not yield BO. AO X BB would not do it either.
So, I assume only AO ( and, from the info given, BO ) is possible for mom.
How do temperature pH and enzyme concentration each influence enzyme activity?
Hydrogen peroxide (H2O2) is a poisonous byproduct of metabolism that can damage cells if it is not removed. Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide into water (H2O) and oxygen gas (O2).
Is hydrogen peroxide an acceptable way to clean up Hep-c blood spils?
Hydrogen peroxide is not recommended for cleaning up Hepatitis C blood spills. It is best to use an EPA-approved disinfectant that is effective against bloodborne pathogens to ensure proper and safe disinfection. It is also important to follow proper cleanup procedures to minimize the risk of transmission.
