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Flashcards in chapter 2 Deck (15)
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1
Q

unicellular organism with relatively simple cell structure.

A

prokaryote

2
Q

compartmentalized cell structure with components bounded by intracellular membranes

A

eukaryote

3
Q

in 2 major groups and may be unicellular or multicellular

A

eukaryotes

4
Q

2 distinct types of prokaryotes

A

bacteria

archaea

5
Q

3 major groups-of of organisms from evolutionary perspective

A

bacteria
archaea
eukaryotes

6
Q

major difference between prokaryotic and eukaryotic cells

A

eukaryotic cell has a nuclear envelope

7
Q

which cell has a nuclear envelope

A

eukaryotic

8
Q

what class of proteins do eukaryotes use to pack their DNA

A

histones and chromatin

9
Q

protein found in eukaryotes that complexes with DNA to form chromosomes

A

Histones

10
Q

consists of DNA and proteins found in the eukaryotic nucleus

A

chromatin

11
Q

what do histones do

A
  • regulate accessibility of DNA to enzymes that copy and read the DNA
  • Enable DNA to fit into nucleus
12
Q

do not possess histones, dna doesn’t exist in ordered tightly packed arrangement found in eukaryotic cells

A

bacteria

13
Q

why are viruses neither prokaryotic or eukaryotic

A

don’t possess structure of a cell

14
Q

3 fundamental events for a cell to reproduce

A
  • gene info must be copied
  • copies must be separated
  • cell must divide
15
Q

how do prokaryotes reproduce

A

binary fission