Directions: Use the information provided and your knowledge of Life Science to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Life Science to answer the following questions. Show all work where necessary.
Plants capture light energy from the Sun and transform it into chemical energy during photosynthesis. This process converts carbon dioxide
In bright light, chloroplasts absorb sunlight efficiently, fueling rapid photosynthesis. The plant produces abundant glucose, which contributes to biomass growth - the physical increase in stems, leaves, and roots.
In total darkness, however, photosynthesis cannot occur because there is no light energy to drive the chemical reaction. The plant still performs cellular respiration, using stored sugars for energy, but it cannot replace the energy it consumes. Over time, the plant loses mass and eventually wilts or dies.
This relationship between light availability and growth rate shows how energy enters ecosystems: sunlight is captured by producers and converted into chemical energy, which supports all other life forms. Without sunlight, the flow of energy stops - and the cycling of matter in living systems is disrupted.
Graph of Information - Figure 1.
Figure 2.
Which observation best supports that light availability affects plant growth?
Using the table and Figure 1, compare plant height in light-grown and dark-grown conditions. What pattern do you notice?
Explain why plants grown in darkness may grow taller but appear pale or yellow.
Does light availability influence plant growth? Use evidence from the table, Figure 1, and Figure 2 to support your claim.
Claim:
Evidence:
Reasoning:
Which process is directly limited when a plant grows without light?
Compare leaf development between plants grown in full light and those grown in darkness. How might this affect their survival?