2.1 A (Prokaryotes, Eukaryotes and Microscopes

Match

Match the following

• Prokaryotic

• Eukaryotic

• Unicellular

• Multicelular

• Archaea and Bacteria

These are small, single cells with a simple internal structure

These are larger and more complex with specialized membranous compartments

All Prokaryotes are and Some Eukaryotes can be ..

Only Eukaryotes

2 domains of Prokaryotes are

• These are small, single cells with a simple internal structure

• These are larger and more complex with specialized membranous compartments

• All Prokaryotes are and Some Eukaryotes can be ..

• Only Eukaryotes

• 2 domains of Prokaryotes are

Reorder

Prokaryotes have a __1__ of naked DNA (not associated with protein). They commonly have small, circular accessory chromosomes called __2__. Photosynthetic bacteria have __3__ and __4__ like those in __5__.

• single, circular chromosome

• plasmids

• enzymes

• light-capturing membranes

• eukaryotic chloroplasts

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

Prokaryotes are relatively __1__ with little cellular organization; their DNA, ribosomes, and enzymes are __2__ within the cell's __3__. The ribosomes (the 70S) are __4__ than eukaryotic ribosomes.

• unstructured

• free-floating

• cytoplasm

• smaller

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Select

Select all the organisms that are compsed of Eukaryotic Cells

• Animals

• Plants

• Fungi

• Protists

• Bacteria

Multiple Select

Select the characteristics that are found in Eukarytic cells

• Complex organization with compartmentalized organelles

• A simple organization with no nucleus and a single circular chromosome made of DNA and without proteins

• DNA is found on multiple linear chromosomes that are associated with proteins

• Ribosomes (80S) are larger than in prokaryotes, except those in mitochondria and chloroplasts, which are 70S.

• All ribosomes are smaller in size (70S)

Match

Match the following

• use visible light and a combination of lenses to magnify objects up to several 100 times.

• use beams of electrons and computer imaging to capture extremely fine detail of either surface or internal cellular features. 

• Can magnify objects more than 500,000 times

• an important tool in biology for viewing cells and their features, which are far too small to be seen by the human eye. 

Compound light microscope

Electron microscope

Scanning Tunneling Microscopes

Microscopes (in general)

• Compound light microscope

• Electron microscope

• Scanning Tunneling Microscopes

• Microscopes (in general)

Match

Match the following

Scanning Tunneling Microscopes (STM)

Transmission electron microscopes (TEM)

Scanning Electron Microscopes (SEM)

Dissecting Microscopes

Compound light microscopes (using Dark field)

• Scanning Tunneling Microscopes (STM)

• Transmission electron microscopes (TEM)

• Scanning Electron Microscopes (SEM)

• Dissecting Microscopes

• Compound light microscopes (using Dark field)

Match

Match the following

• Transmission Electron Microscopes

• Scanning Electron Microscopes

• Scanning Tunneling Microscopes

• Dissecting Miscroscopes

• Compound Light Microscopes

Produce high resolution images of the interior of cells

Produce high resolution images of the surface of cells

Create images based on current variation between the object and an extremely fine needle

Used for identifying, dissecting and sorting small organisms

Uses light through 2 or more lenses to view objects, can use light or dark backgrounds

• Produce high resolution images of the interior of cells

• Produce high resolution images of the surface of cells

• Create images based on current variation between the object and an extremely fine needle

• Used for identifying, dissecting and sorting small organisms

• Uses light through 2 or more lenses to view objects, can use light or dark backgrounds

Reorder

To get the magnification, you would need to divide __1__ by __2__.

To get the actual size of the object, you would need to divide __3__ by __4__

• measured size of the object

• actual size of the object

• size of the image

• magnifiction

1

2

3

4

• 1
• 2
• 3
• 4

Match

Match the following

• Crisp

• F

• Fuzzy

• Wavelength of light

• Magnification

High resolution images look ...

Low resolution images look ...

Resolution is a function of ...

The amount that an object can be zoomed in is called ...

How close to objects can be to one another but still appear as separate objects is called ...

• High resolution images look ...

• Low resolution images look ...

• Resolution is a function of ...

• The amount that an object can be zoomed in is called ...

• How close to objects can be to one another but still appear as separate objects is called ...