QUESTION 1 What is the waxy barrier that forces water and nutrients in the soil

Question

QUESTION 1 What is the waxy barrier that forces water and nutrients in the soil to go though cell membranes, instead of simply being absorbed directly into the xylem of roots? guard cells cortex cuticle endodermis epidermis Casparian strip QUESTION 2 How do roots obtain cation fertilizers (positively charged nutrients) from the soil? Root hairs release H+ ions that displace the cation nutrients. Root hairs wrap around soil particles and absorb nutrients directly. Root cells use active transport to remove cations from soil particles. Epidermis cells on roots have a negative charge that pulls in positive cations.

Explanation / Answer

1. Casparian strip is the waxy barrier that forces water and nutrients in the soil to go through cell membranes instead of simply being absorbed directly into the xylem of roots.

2. Root hairs release H+ ions that displace the cation nutrients.

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