lab questions ( cells ) Flashcards by Samantha Olsen

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Q

Diffusion is the movement of particles from a ____ to ____ concentration

A

Hight to low

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Q

Simple diffusion is…

A

When it can pass directly through cell membranes easily

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Q

facilitated diffusion is…

A

When molecules are unable to dissolve into the lipid bilayer

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Q

Semi-permble membrane is

A

Semipermeable membrane allows certain molecules or ions to pass through it by osmosis

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Q

What is mitosis?

A

It is the type of cell division that cells use for growth and repair

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Q

How many chromosomes are in the human cell?

A

46 ( 23 from the mums eggs and 23 from the dads sperm )

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Q

What are the four names and steps in cell division? (PMAT)

A

Prophase - The DNA is packaged into chromosomes.
Metaphase - The chromosomes line up in the middle of the cell.
Anaphase - The duplication chromosomes are pulled apart.
Telophase - The nucleus divides into two

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