Plant Systems (Structure, Hormones, Tropisms)

What structure in the plant cell is primarily involved in converting light energy into chemical energy?

• Mitochondria

• Stem

• Chloroplast

• Chlorophyll

Glucose and ____ are the reactants of cellular respiration

Which plant hormone is primarily involved in promoting cell division and shoot growth?

• Gibberellins

• Ethylene

• Auxin

• Cytokinins

Carbon dioxide, _____, & sunlight are the reactants of photosynthesis

What is the primary function of the phloem?

• Transport of water

• Transport of sugars and nutrients

• Structural support

• Photosynthesis

What is the stimulus for phototropism?

What is the critical role of the mesophyll layer in leaves?

• Gas exchange

• Osmosis

• Photosynthesis

• Transport of water

The hormone auxin has what effect on plant cells in the shoot tips of plants?

• Makes them grow longer

• Prevents them from growing

• Makes them move to the dark side

• Negative phototropism

The structure responsible for the transport of water from the roots to the leaves.

What do stems do?

• hold the leaves up

• transport water up to the leaves

• transport nutrients down to the roots

• all of these