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Transcript
p. 205 A.Q. 1ab, 2ab, 3b, 4b, 5ac
1a. What are the two major parts of the cell?
1a. The two major parts of the cell are the cytoplasm
(with organelles) and the nucleus.
1b. How is the role of the nucleus in a cell similar to
the role of the captain on a sports team?
1b. The role of the nucleus is like the captain of a sports team because the
nucleus controls cell activities as a captain controls plays and players.
2a. What is the function of lysosomes?
2a. The function of lysosomes is to break down nutrients, old organelles, and
old cells with their enzymes.
p. 205 A.Q. 1ab, 2ab, 3b, 4b, 5ac
2b. How do contractile vacuoles help maintain water balance?
2b. Contractile vacuoles help maintain water balance by pumping out excess
water.
p. 205 A.Q. 1ab, 2ab, 3b, 4b, 5ac
3b. Describe the steps involved in the synthesis, packaging, and export of a protein
from a cell.
3b. Your answer here!
p. 205 A.Q. 1ab, 2ab, 3b, 4b, 5ac
4b. You examine an unknown cell under a microscope and discover that the cell
contains chloroplasts. From what type of organism does the cell likely come?
4b. The cell likely comes from a plant (or certain unicellular organisms called
protists).
Plant Cells
Protists
p. 205 A.Q. 1ab, 2ab, 3b, 4b, 5ac
5a. Why is the cell membrane
sometimes referred to as a fluid
mosaic? What part of the cell
membrane acts like a fluid? And
what makes it like a mosaic?
5a. The cell membrane is
sometimes referred to as a fluid
mosaic because it is made of many
parts that can float around in the
membrane.
5c. Why do you think it’s important that cell membranes are selectively
permeable?
5c. It’s important that cell membranes are selectively permeable because
selective permeability allows needed substances to enter the cell and wastes to
leave while keeping out molecules that are not needed.