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Anatomy And Physiology > 2 - cells > Flashcards

2 - cells Flashcards

1
Q

Organelles

A

These are various parts of the cell with particular functions and are like miniature organs

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2
Q

Cell membrane

A

An outer coating which selectively transports substances into and out of the cell

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3
Q

Nucleus

A

The control centre of the cell, regulating its general and specialist functions

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4
Q

Ribosomes

A

Made of ribonucleic acid (RNA) and protein, they manufacture other proteins

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5
Q

Rough and smooth endoplasmic reticulum

A

This manufactures, stores and transports materials within and outside of the cell

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6
Q

Mitochondria

A

Situated in the cytoplasm, these supply the cells energy source

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7
Q

Centrioles

A

Essential for cell division

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8
Q

Lysosomes

A

Contain enzymes which digest worn out parts of the cell for recycling and elimination of waste products

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9
Q

Golgi apparatus

A

Modifies and stores manufactured protein and transports it out of the cell

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10
Q

Cell functions

A

Respiration
Growth
Excretion
Irritability

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11
Q

Respiration

A

Cells require nd absorb oxygen to produce heart and energy

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12
Q

Growth

A

Cells grow to maturity by manufacturing proteins. They may then divide or specialise

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13
Q

Excretion

A

Waste products pass out through the cell membrane

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14
Q

Irritability

A

Cells can respond to a physical, chemical or thermal stimulus

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15
Q

Cell division

A

Human cells reproduce by the process of mitosis, when structures like chromosomes and centrioles replicate. Then the cell divides into two identical daughter cells

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16
Q

Enzymes

A

Enzymes are the protein catalysts that enable metabolic reactions at low temperatures

Enzymes are involved in all the cell functions of respiration, growth, excretion and irritability

17
Q

Nucleic acids

A

DNA - carries the cells genes ad chromosomes. Genes are coded instructions for making proteins and for cell function

All three types of RNA are involved in the decoding (transcription) of DNA to make proteins

Anatomy And Physiology (7 decks)

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