BLOOD

BLOODNORMAN J. MANUBA JR. TeacherSubject Matter: The Blood and Its Functions

PELC VI 1.1.A

Values: Keeping the body healthyPreparatory Activities:Daily routineWeather newsScience TriviaAn average healthy person has between 4.5 to 6 liters of blood in his body. This volume should be maintained or the consequences could be fatal.

Review:Arrange the jumbled letters.

EHRTA----located at the center of the chest cavityDBLOO----- known as river of lifeICULARCTOY STYESM----in c harge in circulationSESVEL DOLOB---- passage way of blood

Motivation:

What comes out when your skin was cut? Describe it.

Activity Proper:

Watch a video about blood.Answer the following questions:What are the parts of the blood?What is the work of each blood parts?Describe the blood.What is found in the red blood cells that give the blood red in color?

Red Blood cellsThe red blood cells contains hemoglobin that gives blood its red color and transport oxygen.

White Blood cells White blood cells are fewer than RBC. They are the soldiers of the body because they destroy the germs that enter our body.

Platelets Platelets are the smallest blood cells that produce a material for blood clotting.

Plasma The liquid part is made up of plasma.

Generalization:The blood is a red fluid within the blood vessels. It consist of solid and liquid parts. The solid parts include the RBC (red blood cells) or erythrocytes; the wbc (white blood cells) or leukocytes; and the platelets or thrombocytes. The liquid part is made up of plasma.The red blood cells contains hemoglobin that gives blood its red color and transport oxygen. White blood cells are fewer than RBC. They are the soldiers of the body because they destroy the germs that enter our body. Platelets are the smallest blood cells that produce a material for blood clotting. When blood clots the plasma separates as clear liquid.Blood caries food and oxygen to all the cells and carries away carbon dioxide and other wastes. It regulates body tempearature. It also protects the body from infections.Application:Fill up the table using the words below.Clear liquidBigger than red blood cellsSmall concave disc-shaped cellsAttacks germs in the bodyCarries fibrinogensMakes blood clotCircular discs, red, smallestCarries oxygen and nutrients, contains hemoglobin

BLOOD COMPONENTSDESCRIPTIONFUNCTIONSPlasma2. Red blood cells3. White blood cells4. plateletsBLOOD COMPONENTSDESCRIPTIONFUNCTIONSPlasmaClear liquidCarries fibrinogens2. Red blood cellsSmall concave disc-shaped cellsCarries oxygen and nutirents, contains hemoglobin3. White blood cellsBigger than red blood cellsAttacks germs in the body4. plateletsCircular discs, red, smallestMakes blood clotValuing:

What will you do to keep blood healthy?

Evaluation:Select the letter of the correct answer:What components of blood is important to fight infections in the body?PlateletsRed blood cellsWhite blood cellsplasma2. The following are the components of blood EXCEPT one. What is this?Erythrocytes Thrombocytes Leukocytes Monocytes 3. Which of the following is NOT the work of the blood?Regulates body temperatureMakes us easy to breatheRemoves wastes from the cellsFights the germs that enter the body4. When germs enter the body through the cut in skin, how does the body react?The white blood cells surround and kill the germsThe red blood cells make the germs decrease in numberThe platelets tend to clot and engulf the germsThe plasma thickens and surrounds the germs5. Why is blood important to the body?It gives color to our skinIt carries oxygen and nutrients to different cells of the bodyIt carries away carbon dioxide and other wastes from the bodyBoth B and Ckey:CDBADAssignment:

What are blood vessels and its functions?