Chapter 3 - Cell Structure and Function

Question 1

What are the 3 parts of the cell theory? 3.1

Answer 1

1. ) All living things are made up of cells.
2. ) All cells come from other cells.
3. ) Cells are the most basic unit of life

Question 2

What are the 3 parts of the cell theory? 3.1

Answer 2

1. ) All living things are made up of cells.
2. ) All cells come from other cells.
3. ) Cells are the most basic unit of life

Question 3

What do prokaryotic and eukaryotic cells have in common? 3.1

Answer 3

• DNA
• Genetic Information
• Instructions for making proteins
• Cytoplasm
• Cell membrane
• Ribosomes to synthesize proteins

Question 4

What are the functions of a prokaryote? 3.1

Answer 4

• No nucleus
• Unicellular
• DNA in cytoplasm
• No organelles
  ex. bacteria

Question 5

What are the functions of an eukaryote? 3.1

Answer 5

• Has nucleus
• Multi-cellular
• DNA in nucleus
• Organelles
  ex. amoeba

Question 6

What are the two types of a microscope? (1.4)

Answer 6

Light microscopes

Electron Microscopes

Question 7

What happens in a light microscope? 1.4

Answer 7

Light - light is passed through one or more lenses to produce an enlarged image (can see specimens as small as bacterium; living or preserved specimens can be seen using these)

Question 8

What happens in an electron microscope? 1.4

Answer 8

Electron - an image of a specimen is formed using a beam of electrons rather than light ( can see specimens as small as proteins; only dead or preserved specimens can be seen using these because specimens must be placed in a vacuum

Question 9

What do prokaryotic and eukaryotic cells have in common? 3.1

Answer 9

• DNA
• Genetic Information
• Instructions for making proteins
• Cytoplasm
• Cell membrane
• Ribosomes to synthesize proteins

Question 10

What are the functions of a prokaryote? 3.1

Answer 10

• No nucleus
• Unicellular
• DNA in cytoplasm
• No organelles
  ex. bacteria

Question 11

What are the functions of an eukaryote? 3.1

Answer 11

• Has nucleus
• Multi-cellular
• DNA in nucleus
• Organelles
  ex. amoeba

Question 12

What are the two types of a microscope? (1.4)

Answer 12

Light microscopes

Electron Microscopes

Question 13

What happens in a light microscope? 1.4

Answer 13

Light - light is passed through one or more lenses to produce an enlarged image (can see specimens as small as bacterium; living or preserved specimens can be seen using these)

Question 14

What happens in an electron microscope? 1.4

Answer 14

Electron - an image of a specimen is formed using a beam of electrons rather than light ( can see specimens as small as proteins; only dead or preserved specimens can be seen using these because specimens must be placed in a vacuum