Exam 6: Plant Adaptations to the Environment

Plants adapted to low-nutrient environments are characterized by

The light level at which the rate of carbon uptake in photosynthesis equals the rate of carbon loss in respiration is the light ________ point.

________ is the movement of a substance from areas of higher to lower concentration.

Under ideal conditions,when resources are unlimited,plant growth is maximized when carbon is allocated to the stem.

The transfer of heat from the plant to the surrounding environment is influenced by the existence of the ________ layer.

Deciduousness is an adaptation of plants to dry environments.

Leaf area ratio (LAR)is the product of specific leaf area (SLA)and

Plants adapted to high-nutrient environments have higher growth rates than plants adapted to low-nutrient environments.

Plants growing in shade have a higher rate of leaf respiration than plants growing in sunlight.

Photosynthesis produces more water than it uses.

The pigment that absorbs light energy (photons)in photosynthesis is

The rate of carbon uptake increases only when plants allocate carbon to the production of

The process of using energy from the Sun to convert CO₂ into organic molecules is called

Overall,water movement from the soil,through plant tissues,and finally to the atmosphere through transpiration,is driven by a gradient of

The transfer of heat from the plant to the surrounding environment is influenced by the existence of the boundary layer,which refers to the layer of

In photosynthesis,the uptake of CO₂ by plants occurs through openings on the surface of

In some shade plants,the negative effect of high light levels on the rate of photosynthesis is referred to as ________.

Plants convert bicarbonate to carbon dioxide using the enzyme carbonic ________.

The ratio of surface area to weight for a leaf is called the ________.

Once dissolved in water,the CO₂ molecule reacts with water to form ________.