Explain how the structure of a leaf contributes to the function of photosynthesis. What will be an ideal response?


Concepts to Consider: Epidermis--transparent structure allows light to enter the inner mesophyll
layer where photosynthesis takes place. Stomata--allow gas exchange (CO2 and O2) to occur. Xylem--
transports water absorbed by roots from soil to leaf. Veins--carry sugar to all parts of plant. Bundle
sheaths and extensions--prevent collapse of leaf and give support

Biology & Microbiology

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Which factor has the least effect on the amount of

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Mycorrhizae help plants obtain water from the soil

Indicate whether the statement is true or false

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Activator proteins often increase transcription through an interaction with ________.

Fill in the blank(s) with the appropriate word(s).

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Organisms that can grow in habitats with low water activity by maintaining a high internal salt concentration are called ________ organisms.

Fill in the blank(s) with the appropriate word(s).

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