The picture shows a leaf found on an autotrophic plant.
The cells in this leaf are making their own energy by the process of
a
respiration, where carbon dioxide and oxygen at Q and R are taken in and then converted into thermal energy and methane gas at S and T.
b
respiration, where oxygen and sunlight at Q and R are taken in and then converted into carbon dioxide and glucose at S and T.
c
photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.
d
photosynthesis, where glucose and oxygen at Q and R are taken in and then converted into water vapor and thermal energy at S and T.
c
photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.
The correct answer is c) photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.
To determine the correct answer, we need to understand the process by which autotrophic plants make their own energy. The process described here involves the exchange of carbon dioxide and oxygen at points Q and R, and the production of glucose and oxygen at points S and T.
Option a states that the process involves respiration, where carbon dioxide and oxygen are converted into thermal energy and methane gas. However, this is not accurate since respiration in plants involves the uptake of oxygen and the release of carbon dioxide, not the other way around.
Option b states that the process involves respiration, where oxygen and sunlight are converted into carbon dioxide and glucose. This is also incorrect because respiration does not involve the absorption of sunlight.
Option c states that the process involves photosynthesis, where carbon dioxide and sunlight are converted into glucose and oxygen. This is the correct answer. Photosynthesis is the process by which autotrophic plants use sunlight, carbon dioxide, and water to synthesize glucose and release oxygen.
Option d states that the process involves photosynthesis, but with glucose and oxygen being converted into water vapor and thermal energy. This is incorrect since photosynthesis does not involve the conversion of glucose and oxygen into water vapor.
Therefore, the correct answer is c) photosynthesis, where carbon dioxide and sunlight at Q and R are taken in and then converted into glucose and oxygen at S and T.