The Direct Role of Flavonoids in Nodule Formation Is To

question 23

Multiple Choice

The direct role of flavonoids in nodule formation is to:

• A)stimulate formation of infection threads.
• B)stimulate cell wall degradation.
• C)stimulate root-hair curling.
• D)attract rhizobia.
• E)activate the plant Nod genes.

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Definitions:

Exhalation

The process of breathing out, expelling air rich in carbon dioxide from the lungs to the outside environment.

Alveoli

Tiny air sacs in the lungs where gas exchange between the air and blood occurs.

Tissues

Groups of cells within an organism that work together to perform a specific function.

Oxygen Concentration

The amount of oxygen present in a given environment, often measured in terms of percentage or partial pressure.