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Bioligy > Cells > Flashcards

Cells Flashcards

1
Q

Cell

A

Building blocks of life.

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2
Q

Cell membrane

A

A layer around the cell that acts like a barrier. It controls what enters and leaves the cell.

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3
Q

Nucleus

A

Part of the cell that contains chromosones made of DNA molecules with each chromosone carrying a large number of genes and chromosones are found in pairs

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4
Q

Cytoplasm

A

The jelly-like substance in the cell. Chemical reactions take place inside the cell.

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5
Q

Mitochondria

A

Part of the cell where respiration takes place when energy is released from food.

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6
Q

Cell wall

A

This the outside layer of a plant cell. It is structure and support. Made of cellulose to strengthen the cell

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7
Q

Permanent vacuole

A

It is a large area in a plant cell that stores food (cell sap).

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8
Q

Chloroplast

A

Found in plant cells and some unicellular organisms. This is where it traps sunlight for photosynthesis to take place.

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9
Q

Eye-piece lens

A

This is where the naked eye looks through, it magnifies times ten.

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10
Q

Objective lens

A

This is what zooms in, times 10, 20 and 40

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11
Q

Coarse focus

A

Helps make the object clearer to see

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12
Q

Fine focus

A

Makes it more clear and easy to see

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13
Q

An animal cell has …

A

Nucleus, cytoplasm, cell MEMBRANE, mitochondria, ribosomes

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14
Q

What a plant cell has that an animal cell doesn’t

A

Chloroplasts, permanent vacuole, CELL WALL

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15
Q

Specialised cells in animal cells

A

Sperm cells, muscles cells and nerve cells

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16
Q

Specialised cells in plants

A

Root hair cells, xylem and phloem cells

17
Q

Cell differentiation

A

Forms different types of cells for different functions, used for repair and replacement, developes different SUB-CELLULAR structures to carry out a function (specialisation)

18
Q

Stem cell

A

Undifferentiated cell in an organism capable of giving rise to more cells of the same type, and other cells can arise from differentiation. Humans can clone and differentiate stem cells,

19
Q

Meristem cells

A

Can differentiate into any type of plant cell throughout the life of the plant

Bioligy (10 decks)

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