The Working Units of Life - Cells Are The Fundamental Units of Life

Question 1

What is the cell theory?

Answer 1

all living things are composed of cells, come from pre-existing cells, and evolve from a common ancestor (modern cells)

Question 2

What are the two types of electron microscopes? Difference between the two?

Answer 2

scanning electron microscopy (SEM) - focus a beam of electrons onto the surface of a specimen
transmission electron microscopy (TEM) - focus a beam of electrons through a specimen

Question 3

The outer-boundary of every cell; a phospholipid bilayer with proteins

Answer 3

cell membrane

Question 4

everything in the cell except the nucleus

Answer 4

cytoplasm

Question 5

fluid cytoplasm not contained inside another compartment

Answer 5

cytosol

Question 6

What do prokaryotes and eukaryotes contain? What does a eukaryote have that a prokaryote doesn’t?

Answer 6

DNA; a nucleus

Question 7

List the eight compartments inside of a prokaryotic cell.

Answer 7

• capsule
• cytoplasm
• ribosomes
• nucleoid
• cell membrane
• flagellum
• cell membrane
• cell wall