Cells definitions Flashcards

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1
Q

Resolution

A

The ability to distinguish between 2 different points.

Example sentence: The resolution of the microscope was so high that individual cells could be seen clearly.

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2
Q

Mitochondria

A

Site of respiration to release energy.

Example sentence: The mitochondria are often referred to as the powerhouse of the cell.

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3
Q

Cell membrane

A

Controls what substances can enter and leave the cell.

Example sentence: The cell membrane is selectively permeable, allowing only certain substances to pass through.

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4
Q

Cytoplasm

A

Site of chemical reactions.

Example sentence: Many metabolic reactions take place in the cytoplasm of the cell.

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5
Q

Ribosomes

A

Site of protein synthesis.

Example sentence: Ribosomes are composed of RNA and protein and are essential for building proteins in the cell.

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6
Q

Vacuole

A

Contains cell sap and keeps the cell firm and rigid.

Example sentence: The vacuole in plant cells stores water and other substances, helping to maintain turgidity.

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7
Q

Specialised cell

A

A cell that has particular sub-cellular structures.

Example sentence: Neurons are a type of specialised cell that is adapted for transmitting electrical signals.

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8
Q

Nucleus

A

Where genetic material is stored. Controls the cell.

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9
Q

Chloroplast

A

Site of photosynthesis. Contains chlorophyll to absorb sunlight.

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10
Q

Cell wall

A

Supports and shapes the cell

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11
Q

Slime capsule

A

This is for protection and isn’t found on all bacteria

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12
Q

Flagellum

A

Spins like a propeller for movement

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