Question

introduction
in this unit we will examine the cells that are the \building blocks\ of your body using the micro - slide - viewer, microslides and text folders.
read and follow the directions for the use of the micro - slide - viewer and the microslide on the envelope attached to the text folder and holding the slides.
examine each slide and study the description in the text folder. after studying each slide and the printed text, answer the question for that slide on this worksheet. if you dont know the answer, go on to the next slide and question. you may find the answer as you learn more about the subject. draw what you see in the space provided.
slide 1 - cheek cells
a. draw a cheek cell
b. label the cell membrane, cytoplasm, and nucleus
slide 2 - blood cells
a. there are 2 kinds of blood cells in this slide. they are
____________________
b. what is the function of the cells marked (a) and (b)?
____________________
c. what is the principal function of the other cells?
____________________
d. red blood cells contain a special chemical called ____________________

Explanation:

Slide 1 - Cheek Cells

Step1: Draw cheek cell

Draw a roughly circular - shaped cell with a smooth outer boundary representing the cell membrane. Inside, draw a large, round nucleus and fill the remaining space with a light - shading to represent the cytoplasm.

Step2: Label cell parts

Draw arrows pointing to the outer boundary and label it "Cell membrane", an arrow pointing to the central round part and label it "Nucleus", and an arrow pointing to the area between the nucleus and the cell membrane and label it "Cytoplasm".

Slide 2 - Blood Cells

Step1: Identify blood cell types

The two kinds of blood cells are red blood cells and white blood cells.

Step2: Functions of cells

Red blood cells (usually labeled as one type) are responsible for transporting oxygen from the lungs to the body's tissues and carbon dioxide from the tissues back to the lungs. White blood cells are part of the immune system and help defend the body against infections and foreign substances.

Step3: Function of other cells

If (A) and (B) are red blood cells, the other cells (white blood cells) have the principal function of immune - defense. If (A) and (B) are white blood cells, the other cells (red blood cells) are for oxygen and carbon - dioxide transport.

Step4: Identify red blood cell chemical

Red blood cells contain a special chemical called hemoglobin.

Answer:

Slide 1 - Cheek Cells

a. (Draw a cheek cell as described above)
b. (Label the cell membrane, cytoplasm, and nucleus as described above)

Slide 2 - Blood Cells

a. Red blood cells and white blood cells
b. Red blood cells: Transport oxygen and carbon - dioxide; White blood cells: Immune - defense
c. If (A) and (B) are red blood cells, white blood cells for immune - defense; if (A) and (B) are white blood cells, red blood cells for oxygen and carbon - dioxide transport
d. Hemoglobin