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Biology > B1-Cell Biology > Flashcards

B1-Cell Biology Flashcards

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1
Q

B1- SPECIALISED CELLS
What is the function of a Sperm Cell?

A

To get the male DNA to the female DNA

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2
Q

B1- SPECIALISED CELLS
What are the adaptations of a Sperm Cell?

A
  • Streamlined head
    (to help it swim)
  • Long tail
    (to help it swim)
  • Lots of mitochondria
    (to provide energy)
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3
Q

B1- SPECIALISED CELLS
What is the function of a Nerve Cell?

A

To send electrical impulses around the body

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4
Q

B1- SPECIALISED CELLS
What are the adaptations of a Nerve Cell?

A
  • Long
    (to cover more distance)
  • Has branched connections
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5
Q

B1- SPECIALISED CELLS
What is the function of a Muscle Cell?

A

To contract quickly

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6
Q

B1- SPECIALISED CELLS
What are the adaptations of a Muscle Cell?

A
  • Long
  • Contain lots of mitochondria
    (for energy)
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7
Q

B1- SPECIALISED CELLS
What is the function of a Root Hair Cell?

A

To absorb water from the soil

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8
Q

B1- SPECIALISED CELLS
What are the adaptations of a Root Hair Cell?

A
  • A large surface area
    (to absorb more water)
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9
Q

B1- SPECIALISED CELLS
What is the function of a Phloem Cell?

A

Transports substances around the plant

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10
Q

B1- SPECIALISED CELLS
What are the adaptations of a Phloem Cell?

A
  • Pores
    (to allow cell sap to flow)
  • Cells are long and joined end to end
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11
Q

B1- SPECIALISED CELLS
What is the function of a Xylem Cell?

A

Transports water through the plant

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12
Q

B1- SPECIALISED CELLS
What are the adaptations of a Xylem Cell?

A
  • Hollow in the centre
  • Tubes are joined end to end
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13
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
List the features of an Animal Cell.

A
  • Nucleus
  • Ribosomes
  • Cell Membrane
  • Mitochondria
  • Cytoplasm
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14
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
List the features of a Plant Cell.

A
  • Nucleus
  • Ribosomes
  • Cell Membrane
  • Mitochondria
  • Cytoplasm
  • Permanent Vacuole
  • Cell Wall
  • Chloroplast
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15
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What are the differences between an Animal and Plant Cell?

A

An Animal Cell does NOT have:
- Chloroplast
- Permanent Vacuole
- Cell Wall

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16
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
List the features of a Bacterial Cell.

A
  • Chromosome
  • Cell Wall
  • Flagella
  • Cytoplasm
  • Cell Membrane
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17
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of a Nucleus?

A

Contains genetic material, including DNA, which controls the cell’s activities

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18
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of Ribosomes?

A

Tiny structures where protein synthesis occurs

19
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of a Cell Membrane?

A

Its structure is permeable to some substances but not to others. It therefore controls the movement of substances in and out of the cell

20
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of Mitochondria?

A

Organelles that contain the enzymes for respiration, and where most energy is released in respiration

21
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of Cytoplasm?

A

A jelly-like material that contains dissolved nutrients and salts and structures called organelles. It is where many of the chemical reactions happen

22
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of a Permanent Vacuole?

A

Filled with cell sap to help keep the cell turgid

23
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of a Cell Wall?

A

Made from cellulose fibres and strengthens the cell and supports the plant

24
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of Chloroplasts?

A

Organelles that contains the green pigment, chlorophyll, which absorbs light energy for photosynthesis. Contains the enzymes needed for photosynthesis

25
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of a Chromosome?

A

A chromosome is a molecule made up of many coiled up sections of DNA. It is important that the DNA does not become tangled. DNA makes up genes. Genes are sequences of DNA that code for certain characteristics

26
Q

B1- PROKARYOTIC AND EUKARYOTIC CELLS
What is the feature of Flagella?

A

Bacteria can have one or more flagella. These can rotate or move in a whip-like motion to move the bacterium

27
Q

B1- CHROMOSOMES
How many pairs of Chromosomes are there in a Nucleus of a Human Cell?

A

There are 23 pairs of Chromosomes.

28
Q

B1- CHROMOSOMES
The structure of DNA is?

A

The structure of DNA is a Double Helix.

29
Q

B1- CHROMOSOMES
A Chromosome is?

A

A small section of DNA.

30
Q

B1- CHROMOSOMES
Do Chromosomes contain a small or large amount of Genes?

A

Chromosomes contain a large number of Genes.

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Biology (5 decks)

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