B1 Cell Biology Flashcards by Gabriel Selaj

Q

Where does sperm cell get energy

A

Mitochondria

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Q

Muscle cell adaptation

A

Lots of mitochondria

Can contract

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Q

Xylem and phloem function

A

Transport water and food

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Q

Mitosis process

A

Cell grow and duplicate DNA

Line up

Pulled apart

Split into 2

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Q

Stem cell

A

Unspecialised cells that can become other cells

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Q

Embryo stem cell

A

Can turn into any type of cell

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Q

Adult bone marrow

A

Can turn into some cells (blood cells)

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Q

Uses of embryos and adult bone marrow

A

Curing diseases

Replacing faulty cells

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Q

Problems of using embryo and adult bone marrow

A

Risk of rejection

Ethical issues

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Q

Diffusion

A

Passive - no energy

Movement of particles from areas HIGH to LOW

Gases or liquids

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Q

Osmosis

A

Water moves from HIGH to LOW concentration across a partially permeable membrane

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Q

Active transport

A

Moves substances LOW to HIGH against gradient

Root hair cells absorb soil

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Q

Eukaryotic cell

A

Have a nucleus which contains DNA

Complex structure

Plant and animal cells

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Q

Prokaryotic cells

A

Smaller and simpler than eukaryotic

No nucleus

May contain plasmids

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Q

Plasmids

A

Small circular pieces of DNA

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Q

What diseases can embryo and bone marrow cure

Study These Flashcards

A

Leukemia

Lymphoma