Chapter 7

Question 1

4 levels of organization of multicellular organisms

Answer 1

• cells
• tissue
• organ
• organ system

Question 2

Difference between unicellular and multicellular

Answer 2

• unicellular- single celled organism

- multicellular- multi celled organisms

Question 3

cell wall

Answer 3

supporting layer around of the cell membrane in plants

Question 4

cell membrane

Answer 4

regulates what enters and leaves the cell

Question 5

differences between prokaryotes and eukaryotes

Answer 5

• prokaryotes are bacteria; eukaryotes are plants, animals, fungi
• prokaryotes don’t have a nucleus; eukaryotes do have a nucleus
• prokaryotes are simple; eukaryotes are complex

Question 6

cytoplasm

Answer 6

fills the cell and gives the cell its shape

Question 7

what did Robert Hooke do?

Answer 7

• first to use light microscope
• discovered cells by looking at a piece of cork
• said cells are the basic unit of life

Question 8

Name the 3 parts of the cell theory

Answer 8

• all livings are composed of cells
• new cells are produced from existing cells
• cells are the basic unit of structures and functions in living things

Question 9

the diffusion of water through a selectively permeable membrane

Answer 9

osmosis

Question 10

the process of when particles tend to move from an area with high concentration to an area with low concentration

Answer 10

diffusion

Question 11

the diffusion of glucose across the membrane

Answer 11

facilitated diffusion

Question 12

differences between permeable and impermeable

Answer 12

permeable- a substance can be pass through the membrane

impermeable- a substance cannot be pass through the membrane

Question 13

how are factories and Golgi bodies similar?

Answer 13

• they both modify, sorts, and packages things