Biology Review - Plants

Front

What are cytokinins?

Back

Cytokinins are plant hormones that promote cell division and can inhibit the elongation of cells.

Front

What is the role of auxins in plants?

Back

Auxins are plant hormones that promote elongation of cells and are involved in regulating growth patterns.

Front

What is gravitropism?

Back

Gravitropism is a plant's growth response to gravity, causing roots to grow downward and stems to grow upward.

Front

What is phototropism?

Back

Phototropism is the growth of a plant in response to light, where stems bend towards the light source.

Front

What is thigmotropism?

Back

Thigmotropism is a plant's growth response to touch, often seen in climbing plants.

Front

What are stomata?

Back

Stomata are small openings on the surface of leaves that allow for gas exchange, including oxygen and carbon dioxide.

Front

What is the function of guard cells?

Back

Guard cells surround stomata and regulate their opening and closing to control gas exchange and water loss.

Front

What is the difference between monocots and dicots?

Back

Monocots have one seed leaf (cotyledon), while dicots have two seed leaves. They also differ in vascular tissue arrangement.

Front

What is xylem?

Back

Xylem is the tissue in plants responsible for transporting water and nutrients from the roots to the rest of the plant.

Front

What is phloem?

Back

Phloem is the tissue in plants responsible for transporting sugars and other metabolic products downward from the leaves.