Cells and How We Study Them

Question 1

an autonomous self-replicating unit that may constitute an organism or may be a subunit of a multicellular organism

Answer 1

cell

Question 2

cells are surrounded by a _______ ________

Answer 2

plasma membrane

Question 3

semifluid substance within the membrane is called the ________

Answer 3

cytoplasm

Question 4

cells at some point contain ___________ which have genes

Answer 4

chromosomes

Question 5

tiny structures that make proteins using the instructions contained in genes

Answer 5

ribosomes

Question 6

cell theory

Answer 6

1. all organisms are made of cells
2. fundamental unit of life
3. come from preexisting cells

Question 7

visualization of the cell or its parts

Answer 7

microscopy

Question 8

isolation of specific components of the cell for study

Answer 8

cell fractionation

Question 9

how much larger an object is made to appear compared to its actual size

Answer 9

magnification

Question 10

the minimum distance between 2 points that can still be distinguished as 2 points

Answer 10

resolving power

Question 11

the visual difference between the density or color of 2 objects

Answer 11

contrast

Question 12

cells that contain a nucleus (plants, animals)

Answer 12

eukaryotes

Question 13

cells that lack a nucleus (bacteria)

Answer 13

prokaryotes

Question 14

a storage polysaccharide for energy in plant cells

Answer 14

cellulose