L2 Basics of Cell Biology

1

Choose the statement which BEST describes a cell.

1

Select the statements about cells that are CORRECT.

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The 3 Domains of living things are:

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The Kingdoms of Domain Eukarya are:

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Bacteria and Archaea are ( prokaryotic, eukaryotic, protists ).

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Most plant and animal cells are between ❌ in diameter. Bacteria is typically between ❌ in diameter.

10-100μm

1-5μm

1

1mm = ?

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Which statement about the endosymbiont theory is INCORRECT?

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Cells are limited to their sizes due to the ratio of surface area to volume of the cell. (s.a./V = smaller for smaller cells.) A small ratio means greater efficiency of exchange between environments.

1

❌ allow us to see cells. There are three important parameters in microscopy:
- ❌, which is the ❌ of the image compared to the actual size
- ❌, which is the ❌ of the image ("resolving of two points")
- ❌, the difference between light and dark areas of image

Microscopes

Magnification

ratio

clarity

Resolution

Contrast

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Light Microscopy (LM) and Electron Microscopy (EM) are the two types of microscopy used to look at cells.

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Electron microscopy lets you look at live cells.

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Light microscopy is the only imaging technique that lets you look at live cells.

1

Select the statements about electron microscopy that are CORRECT.

1

Electron microscopes come in ❌ varieties. Firstly, ❌. Specimens coated in a thin film of gold are scanned and ❌ that bounce back are used to create a 3D image of the specimen's surface. (These images are grey scale, only show us the ❌ of cells, and must be artificially/digitally coloured.)
Secondly, ❌. This does not ❌ electrons, but passes them ❌ the specimen to produce an image of the cell's ❌ structure. Scattered electrons are collected by electromagnets to form an image. Again, the specimen must be stained with heavy metals.

two

scanning electron microscopes

transmission electron microscopy

electrons

surface

reflect

through

internal

1

Which organelles do animal cells have that plant cells DO NOT?

1

Which of the following is are structures found in plant cells but NOT in animal cells?

Objectives: define the essential characteristics of living cells, consider the evolution of cells, summarise the biological classification of cells and organisms, outline the basic structures of cells, and describe important techniques to study cells.

L2 Basics of Cell Biology

Choose the statement which BEST describes a cell.

Select the statements about cells that are CORRECT.

The 3 Domains of living things are:

The Kingdoms of Domain Eukarya are:

Bacteria and Archaea are prokaryotic eukaryotic protists( prokaryotic, eukaryotic, protists ).

Most plant and animal cells are between ❌ in diameter. Bacteria is typically between ❌ in diameter.

1mm = ?

Which statement about the endosymbiont theory is INCORRECT?

Cells are limited to their sizes due to the ratio of surface area to volume of the cell. (s.a./V = smaller for smaller cells.) A small ratio means greater efficiency of exchange between environments.

❌ allow us to see cells. There are three important parameters in microscopy: - ❌, which is the ❌ of the image compared to the actual size - ❌, which is the ❌ of the image ("resolving of two points") - ❌, the difference between light and dark areas of image

Light Microscopy (LM) and Electron Microscopy (EM) are the two types of microscopy used to look at cells.

Electron microscopy lets you look at live cells.

Light microscopy is the only imaging technique that lets you look at live cells.

Select the statements about electron microscopy that are CORRECT.

Which organelles do animal cells have that plant cells DO NOT?

Which of the following is are structures found in plant cells but NOT in animal cells?

Bacteria and Archaea are ( prokaryotic, eukaryotic, protists ).

❌ allow us to see cells. There are three important parameters in microscopy:
- ❌, which is the ❌ of the image compared to the actual size
- ❌, which is the ❌ of the image ("resolving of two points")
- ❌, the difference between light and dark areas of image