Organelle Definitions & Cell Theory Flashcards

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1
Q

Cell Theory

A
  • All living things are composed of cells
    -Cells only arise from pre-existing cells
    -Cells are the smallest unit of life
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2
Q

Cytoplasm

A

Its a medium for chemical reactions and for other organelles to work within

also surrounds other organelles of the cells

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3
Q

Nucleus

A

Contains most of the cells genetic material (DNA), which regulates the activities of the cell.

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4
Q

Ribosomes

A

creation of proteins

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5
Q

Nucleolus

A

Creation of ribosomal RNA. Assembly of ribosomal subunits.

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6
Q

Smooth ER

A

Makes lipids, transports lipids through cell

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7
Q

Rough ER

A

Making, folding, and modifications of proteins, transport of proteins through the cell.

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8
Q

Lysosomes

A

Intracellular digestion of macromolecules, breaks down old organelles and debris.

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9
Q

Golgi body

A

modification, packaging and transport of proteins and lipids through the cell in vesicles

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10
Q

Vacuoles

A

vesticles transport materials through cell, storage for food, waste and water

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11
Q

Mitochondria

A

the site of cellular respiration, makes energy

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12
Q

Chloroplast

A

the site of photosynthesis, using sun to create glucose.

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13
Q

Cytoskeleton

A

maintains the cell shape and internal organisation

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14
Q

centrioles

A

split the cell and DNA during cell division, organize microtube and determine location of other organelles

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15
Q

Cell Membrane

A

Creates a barrier around cell, controls what enters and exits

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16
Q

cell wall

A

protects the cell shape prevents excessive water uptake