Cell Structure Flashcards

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Slide 1:

Cell Structure Flashcards

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1. All living things are made of one or more cells 2. Cells are the basic unit of every living organism 3. Cells only come from pre-existing cells This is the…

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Cell Theory

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Cells without membrane bound organelles such as bacteria Are known as….

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Prokaryotes

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They don’t grow They don’t require energy They don’t maintain homeostasis And they’re not made of cells! They don’t reproduce…

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Viruses

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Swine Flu Virus The protein coat surrounding the DNA or RNA is called a…

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Swine Flu Virus Capsid

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Which stage of Viral infection produces dying cells and millions of viruses?

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The Lytic Cycle

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What do retroviruses like AIDS have that regular viruses do not?

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RNA instead of DNA

Modifies and repackages proteins:

Modifies and repackages proteins

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Golgi Apparatus

The “powerhouse of the cell,” this organelle converts glucose into useable energy:

The “powerhouse of the cell,” this organelle converts glucose into useable energy

Mitochondria:

Mitochondria

Contains digestive enzymes for digesting and recycling worn out cell parts:

Contains digestive enzymes for digesting and recycling worn out cell parts

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Lysosomes

Made of microtubules, these filaments provide strength and structure:

Made of microtubules, these filaments provide strength and structure

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cytoskeleton

Storage organelle, a large central one exists in plant cells:

Storage organelle, a large central one exists in plant cells

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vacuole

Synthesizes proteins and lipids in its flattened membranes:

Synthesizes proteins and lipids in its flattened membranes

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Endoplasmic reticulum

Made of cellulose, it gives shape, structure and strength to plant cells:

Made of cellulose, it gives shape, structure and strength to plant cells

Cell Wall:

Cell Wall

Makes proteins:

Makes proteins

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Ribosomes

Contains chlorophyll for photosynthesis, converts sunlight CO2 and water into glucose (sugar):

Contains chlorophyll for photosynthesis, converts sunlight CO2 and water into glucose (sugar)

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Chloroplast

Responsible for homeostasis, it decides what enters and leaves the cell:

Responsible for homeostasis, it decides what enters and leaves the cell

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Plasma Membrane

Containing DNA, it is the control center of the cell:

Containing DNA, it is the control center of the cell

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Nucleus

Ribosomes are manufactured here:

Ribosomes are manufactured here

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Nucleolus

Long whip-like “hairs “ for movement:

Long whip-like “hairs “ for movement

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Flagella

Only in animal cells, it is involved in cell division:

Only in animal cells, it is involved in cell division

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Centrioles

Short, hair-like projections used for movement that extend from the plasma membrane:

Short, hair-like projections used for movement that extend from the plasma membrane

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Cilia

Watery interior of the cell:

Watery interior of the cell

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The movement of substances in, into, and out of the cell Nerve cell

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Cell Transport Nerve cell

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Maintaining a constant internal environment

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HOMEOSTASIS

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Which organelle Maintains homeostasis?

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The Plasma Membrane

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The two ways that cells maintain homeostasis :

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Passive Transport Active Transport )

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The main component of the plasma membrane - polar heads attract water, fatty tails repel water - making a “sandwich”

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Phospholipid bilayer

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Passive Transport #1 the movement of particles from an area of high concentration to low

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Diffusion

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Passive Transport #2 Diffusion made easier by the use of proteins (transport proteins)

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Facilitated Diffusion

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Passive Transport #3 The movement of water across the membrane from high water concentration to low

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Osmosis

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This type of solution will cause a cell to swell up if placed into it:

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Hypotonic

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Active Transport #1 When cells “eat” substances by surrounding and engulfing them

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Endocytosis

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White blood cells are masters of endocytosis

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Active Transport Active transport #2 Releasing large particles through openings in the plasma membrane - the opposite of endocytosis

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Active Transport Exocytosis

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Active Transport The end

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