Blood Knowledge Quiz

2.

Which is not a granulocyte?
- Neutrophil
- Basophil
- Leucocyte
- None of these
Correct Answer

A. Leucocyte

Explanation

A granulocyte is a type of white blood cell that contains granules in its cytoplasm. Neutrophils and basophils are both types of granulocytes. Leucocyte, on the other hand, is a general term for white blood cells, which includes both granulocytes and agranulocytes. Therefore, leucocyte is not a specific type of granulocyte.

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3.

Which blood type lacks antigens?
- A
- B
- AB
- O
Correct Answer

A. O

Explanation

A has A antigens, B has B antigens and AB has both A and B antigens

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4.

Type A blood can receive donations from
- A and AB
- B and AB
- O and AB
- A and O
Correct Answer

A. A and O

Explanation

Type A blood can receive donations from individuals with blood types A and O. This is because type A blood has antigens on its surface that can accept antibodies from type A and type O blood. Type A blood cannot receive donations from individuals with blood types B or AB because the antibodies present in type A blood would react with the antigens present in type B or type AB blood.

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5.

What characteristic of platelets makes them well suited for their function?
- Sticky
- Small
- Full cell complement
- Huge
Correct Answer

A. Sticky

Explanation

Platelets are well suited for their function due to their sticky characteristic. This allows them to adhere to damaged blood vessels and form clots, preventing excessive bleeding. The stickiness of platelets enables them to aggregate together and form a plug at the site of injury, promoting the healing process. Additionally, their small size allows them to easily navigate through narrow blood vessels and reach the site of injury efficiently. The full cell complement and huge size options are incorrect as platelets are actually small cell fragments rather than full cells, and they are not considered large in size.

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6.

Which white blood count may indicate an infection in the body?
- 30000/mm3
- 10000/mm3
- 5000/mm3
- 20000/mm3
Correct Answer

A. 30000/mm3

Explanation

5000-10000 is the normal range

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7.

If the D antigen is present, blood is
- +
- -
- Fatal
- =
Correct Answer

A. +

Explanation

If the D antigen is present in blood, it means that the blood is Rh positive. Rh positive blood can be transfused to individuals who are Rh positive or Rh negative, making it compatible with a larger population. Therefore, the presence of the D antigen is not fatal and does not cause any harm to the recipient.

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8.

If the blood contains over 55% RBCs, the individual is said to be
- Anemic
- Polycythemic
- Hemophiliac
- None of these
Correct Answer

A. Polycythemic

Explanation

anemics have below 38% RBC and hemophiliacs have a deficiency of platelets and clotting factors

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9.

The proteins of the blood are formed by the
- Kidney
- Bone
- Heart
- Liver
Correct Answer

A. Liver

Explanation

The liver is responsible for producing proteins in the blood. It synthesizes various proteins, including albumin, clotting factors, and transport proteins. These proteins play crucial roles in maintaining the body's overall health and function. The liver also helps in detoxification and metabolism, making it a vital organ for protein production and other essential functions in the body.

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10.

A blood clot that is moving through the bloodstream is a
- Thrombus
- Fibroid
- Both A & B
- Embolism
Correct Answer

A. Embolism

Explanation

an embolism gets lodged or stuck and can cause blockages, etc.

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2
11.

The substance that stimulates the formation of white blood cells is
- Erythropoietin
- Thrombopoietin
- Colony-stimulating factors
- None of these
Correct Answer

A. Colony-stimulating factors

Explanation

Colony-stimulating factors are substances that stimulate the formation and maturation of white blood cells in the body. They are produced by various cells in the bone marrow and play a crucial role in regulating the production of different types of white blood cells, such as granulocytes, monocytes, and lymphocytes. These factors are important for maintaining a healthy immune system and fighting off infections. Erythropoietin and thrombopoietin, on the other hand, are substances that stimulate the production of red blood cells and platelets, respectively. Therefore, the correct answer is colony-stimulating factors.

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12.

In the black US population, 2 blood types are found in near equal percentages. Those 2 blood types are
- A and O
- A and B
- B and O
- AB and O
Correct Answer

A. A and B

Explanation

The correct answer is A and B. This is because blood types A and B are found in near equal percentages in the black US population. Blood type O is not mentioned in the question, so it is not one of the two blood types found in near equal percentages. The combination of blood types AB and O is also not mentioned in the question.

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12
13.

When a blood vessel is damaged, this hormone is needed to constrict blood vessels to reduce blood loss.
- Serotonin
- Thromboplastin
- Fibrinogen
- Thrombin
Correct Answer

A. Serotonin

Explanation

Serotonin is a hormone that is needed to constrict blood vessels when they are damaged in order to reduce blood loss. When a blood vessel is injured, serotonin is released, causing the smooth muscles in the blood vessel walls to contract, narrowing the blood vessel and reducing the flow of blood. This constriction helps to minimize blood loss and allows the body to initiate the clotting process to repair the damaged vessel.

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14.

Erythrocytes are flattened because
- Otherwise, they would not fit through the vessels
- They have been compressed by the larger white blood cells
- The depression is where oxygen attaches
- Organelles eject during maturation
Correct Answer

A. Organelles eject during maturation

Explanation

During the maturation process of erythrocytes, organelles are ejected from the cell. This is necessary for the cell to become specialized and carry out its main function, which is to transport oxygen. By removing the organelles, the cell becomes flattened and takes on its characteristic biconcave shape. This shape allows the erythrocytes to fit through the narrow vessels in the circulatory system, ensuring efficient oxygen delivery to tissues throughout the body.

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15.

Substances that fight foreign material in the blood are called
- Antigens
- Agglutinins
- Agglutinogens
- None of these
Correct Answer

A. Agglutinins

Explanation

agglutinins are antibodies; antigens are agglutinogens

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Blood Knowledge Quiz

The protein found in the blood that is responsible for transporting oxygen is

Quiz Preview

Which is not a granulocyte?

Which blood type lacks antigens?

Type A blood can receive donations from

What characteristic of platelets makes them well suited for their function?

Which white blood count may indicate an infection in the body?

If the D antigen is present, blood is

If the blood contains over 55% RBCs, the individual is said to be

The proteins of the blood are formed by the

A blood clot that is moving through the bloodstream is a

The substance that stimulates the formation of white blood cells is

In the black US population, 2 blood types are found in near equal percentages. Those 2 blood types are

When a blood vessel is damaged, this hormone is needed to constrict blood vessels to reduce blood loss.

Erythrocytes are flattened because

Substances that fight foreign material in the blood are called