Biology: Baxter

TEST ON WEDNESDAY

Questions of the day

October 5, 2012

1.     You are examining cells through a microscope. The cells that you see have a nucleus, no vacuoles, and no chloroplasts. What type of cell do you think this is and why?

Animal Cell because it has a nucleus and no chloroplasts.

2.     Another student examines cells in the microscope and notices a large vacuole, less cytoplasm, and a cell wall. What cell type does this student have in his field of view? Explain your answer in a brief sentence. Plant cell because it has a cell wall.

Questions of the day

October 8, 2012

Mrs. Baxter

a.     Nucleolus

b.     Cytoskeleton

c.     Lysosomes

d.     Eukaryotic

e.     Selectively permeable

f.      Osmosis

g.     Organelles

1.     LYSOSOMES

Organelles that secrete enzymes that dissolve or break down cells that are dead or worn out

2.     OSMOSIS: Movement of water molecules across a membrane from a region of greater concentration to a region of lesser (high to low)

3.     CYTOSKELETON: Fibers that help to maintain the shape of the cell

4.     NUCLEOLUS: Organelle that manufactures ribosomes

5.     EUKARYOTIC CELLS: Cells that contain a nucleus and organelles, larger and advanced types

6.     SELECTIVE PERMEABLE: Membranes that select or choose molecules that may enter or exit the cells

7.     ORGANELLES: Tiny organs of the cell