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Biology B1/B2 > B1.1 > Flashcards

B1.1 Flashcards

1
Q

What are the two types of cells?

A
  • Eukaryotic cells
  • Prokaryotic cells
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2
Q

Two examples of Eukaryotic cells?

A
  • Plant
  • Animal
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3
Q

An example of Prokaryotic cells?

A

Bacteria

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4
Q

What does an Eukaryotic cell have that Prokaryotic cells don’t?

A

Nucleus

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5
Q

What’s smaller, a prokaryotic or eukaryotic cell

A

Prokaryotic

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6
Q

What is contained in an animal cell?

A
  • Nucleus
  • Mitochondria
  • Cell membrane
  • cytoplasm
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7
Q

What is contained in a plant cell?

A
  • Nucleus
  • Mitochondria
  • Cell membrane
  • Cytoplasm
  • Chloroplast
  • Vacuole
  • Cell wall.
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8
Q

What is a nucleus?

A
  • Controls the activities in the cell
  • Contains the genetic material
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9
Q

What does a plant cell contain that a animal cell doesn’t?

A
  • Cell wall
  • Vacuole
  • Chloroplast
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10
Q

What is a mitochondria?

A

Where reactions take place

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11
Q

What is a cell membrane?

A

Barrier which controls what goes in and out
Creates an environment inside the cell

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12
Q

What is a cytoplasm?

A

A ‘jelly-like’ substance

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13
Q

What is a chloroplast?

A

Transfers energy to the plants from Sunlight

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14
Q

What is a cell wall?

A

A rigid walls that helps give structure

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15
Q

What is a vacuole?

A

An organism that stores nutrients, waste and water

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16
Q

What does unicellular mean?

A

Consist of just one cell

17
Q

What is the size of a bacteria cell?

A

1μm

18
Q

What subcellular organisms does bacteria consist of?

A

Cell membrane
Slime capsule
Cell wall
Plasmids
Flagella
Genetic material
Cytoplasm
Pili

19
Q

What is a light microscope?

A

A instrument used to see small objects with light, invisible to the naked eye.

20
Q

Parts of a light microscope

A

Eyepiece lens, objective lens, stage, slide, light, fine focus and coarse focus

21
Q

What is the formula for total magnification?

A

Total magnification = Eyepiece lens magnification × objective lens magnification

22
Q

What is the function of a stain?

A

To provide atificial colour to a cell

23
Q

What does resolution mean?

A

The smallest distance between two points that can be seen as two different entities

24
Q

What is an electron microscope?

A

A machine used to see small objects with electrons, invisible to the human eye.

25
Q

Advantages of electron microscopes

A

Better resolution(1μm)

26
Q

Advantages light microscopes

A

Cheap to buy and operate
Small and portable
Simple to prepare a sample
Natural colour of the sample is seen
Specimens could be living or dead

Biology B1/B2 (3 decks)

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