Option 1
А. Choose the correct answer
1.Where does the formation of red blood cells occur?
a) liver
b) red bone marrow
c) spleen
2.What is the liquid part of the blood called?
a) water
b) plasma
c) lymph.
3.Which blood cells are involved in the transport of oxygen and carbon dioxide?
a) platelets
b) leukocytes
c) erythrocytes.
4.Which blood cells have a nucleus in their cells?
a) erythrocytes
b) leukocytes
c) platelets
5. Which blood-forming elements are involved in blood clotting?
a) red blood cells
b) platelets
c) white blood cells
B. Find sentences with errors and correct them:
1.The internal environment of the body is blood, lymph, and tissue fluid.
2. erythrocytes are red blood cells that have a nucleus.
3. leukocytes are amoeba-shaped and have a nucleus.
4. platelets have a nucleus, their main function is to provide immunity
C. Finish the sentences.
1.The constituent part of the body’s internal environment, consisting of plasma and form elements, is……………………
2.The blood element involved in blood clotting is……………
3. White blood cells are………………………..
Option 2
А. Select the correct answer.
1.Unlike other tissues, blood
a) does not have a cellular structure
b) consists of round cells
c) liquid tissue
2) Tissue fluid is formed from
a) red blood cells
b) lymph
c) blood plasma
3. All cells of the body are surrounded by
a) lymph
b) table salt solution
c) tissue fluid
4. Blood clotting occurs due to
a) capillary constriction
b) destruction of red blood cells
c) fibrin formation
5. Blood-forming elements do not include
a) red blood cells
b) leukocytes
c) platelets
B. Find sentences with errors and correct them:
1. The internal environment of the body is blood, plasma, and tissue fluid.
2. Erythrocytes are red blood cells that do not have a nucleus.
3. The reddish color of erythrocytes is given by a protein called hemoglobin.
4. White blood cells are responsible for blood clotting.
C. Complete the sentences.
1.The protein inside the red blood cell is…………………
2.Red blood cells are…………………………
3. The body’s defensive reaction caused by the penetration of pathogenic bacteria is…………………………….
