Term
| What three functions does the root cap have? |
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Definition
- protecting the root apical meristem (RAM) from damage
- providing lubrication for plant growth by secreting mucigel
- perceiving gravity
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Term
long trichomes that increase surface area of roots for absorption |
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Definition
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Term
Where does nearly all absorption happen within the roots? |
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Definition
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Term
| Where are root hairs usually located? |
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Definition
They are only located in a small region above the root tip. |
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Term
single layer of cells around the vascular bundle within a root |
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Definition
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Term
| similar to the bundle sheath in leaf cells |
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Definition
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Term
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Definition
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Term
water moves through the cell walls only, not entering the cells |
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Definition
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Term
| water moves from cell to cell via plasmodsmata |
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Definition
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Term
| cytoplasmic connections between cells |
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Definition
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Term
water moves from cell to cell via cell walls and plasma membranes |
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Definition
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Term
| Is water movement predetermined? |
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Definition
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Term
| waterproof strip of suberin that surounds endodermal cells and blocks the apoplastic pathway |
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Definition
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Term
| What purposes does the casparin strip serve? |
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Definition
- provides regulation for water movement in the root
- directs water into the xylem
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Term
Why can't minerals diffuse into a plant? |
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Definition
There is a higher concentration of minerals within the plant than outside of it. |
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Term
Minerals must use __________ to enter the plant via carrier molecules embedded in the __________ of epidermal cells. Once inside the root, minerals move through the ___________ through diffusion. They require active transport to get into the ______ where they are carried along with water in the transpiration stream. |
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Definition
| active transport/energy, plasma membrane, plasmodesmata, xylem |
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