11084235
Descrição
FlashCards por Jessie Howes, atualizado more than 1 year ago
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Criado por Jessie Howes
mais de 6 anos atrás
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| Questão | Responda |
| What's differentiation? | When a cell changes to become specialized for it's job |
| When does differentiation occur in most animal cells? | During development, as the ability to differentiate is lost once cells become specialized |
| When do plant cells lose the ability to differentiate? | In most plant cells, never. |
| What are cells that differentiate in mature animals used for? | Repairing and replacing cells |
| What are undifferentiated cells called? | Stem Cells |
| How are sperm cells specialized? | Long tail and streamlined head to get to the egg Lots of mitochondria to provide needed energy Enzymes in head to to digest the egg's membrane |
| How are nerve cells specialized? | Long to cover more distance Branched connections so they can connect to other nerve cells and form a network |
| How are muscle cells specialized? | Long - space to contract Lots of mitochondria - for energy needed |
| How are root hair cells specialized? | Large surface area - increased water and mineral intake |
| How are phloem and xylem cells specialized? | Long and joined end to end - forms tubes Hollow / small subcellular structures - stuff flows through them |
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