Blood 2. Enjoy! 8th Grade

Hey there, it's Ildar Yakhin. Today's lesson is an update for the last one on BLOOD. Enjoy then

Blood 2 lesson

Exercise 7 (individual work): A young astronaut from a distant galaxy has recently returned home from a year of ‘intercultural’ exchange on Earth. The astronaut reports back to his boss on the blood of Earthlings. Complete the intergalactic astronaut’s conversation with his boss.

Exercise 8 (individual work): Complete the following text using - ‘a/an’ (the indefinite article), ‘the’ (the definite article) or nothing (simply leaving the line blank).

Now pretend you are ___ cell scientist. ___ cell you are looking through your microscope is ___ red blood cell of ___ human body. This cell has ___ flexible and biconcave structure.

High or low number of ___ RBCs in ___ patients blood would describe his or her illness. If there is ___ low number of erythrocytes then the patient has ___ anemia.

Exercise 9. Step one (individual work). Read the text and circle the right words or phrases in italics to create grammatically correct sentences.

Blood is a fluid/liquid connective tissue critical to/to the transportation/transport of nutrients, gases, and wastes throughout/among the body; to defend/defeat the body against infection and other threats; and to/to the homeostatic regulation of pH, temperature, and other internal/external conditions. Blood is composed of formed elements—erythrocytes, leukocytes, and cell/the cell fragments called platelets—and a fluid extracellular matrix called plasma. Like other fluids in/in the body, plasma is composed/consist primarily of water: In fact, it is about 92 percent water. Dissolved or suspended within this water is a mixture of/of the substances, most of which are proteins/fats. There are literally/almost hundreds of substances dissolved or suspended in the plasma, although many of them is/are finded/found only in very small quantities.

Step two (individual work)

Compare your results with the correct answers shown by your teacher.

Exercise 10. Step one (individual work). Put the following sentences in a logical order to form a well-sequenced paragraph about ABO blood groups.

_1_A. Although the ABO blood group name consists of three letters,

___B. Both are glycoproteins. 

___C. In which case they are blood type AB.

_4_D. People whose erythrocytes have A antigens on their erythrocyte membrane surfaces are selects blood type A, and those whose erythrocytes have B antigens are blood type B.

___E. ABO blood typing selects the presence or absence of just two antigens, A and B.

___F. People with neither A nor B antigens are selects blood type O.

_5_G. People can also have both A and B antigens on their erythrocytes

_8_H. ABO blood types are genetically figured out.

This VIDEO will provide you some help!

Step two (Group work of 3 or 4): Give reasons why you have chosen this order!