Final answer:
The incorrect statement is (b) Green plants get their food from organic compounds. Plants are autotrophs that produce their own food through photosynthesis, using inorganic compounds like carbon dioxide and water, in the presence of sunlight.
Step-by-step explanation:
Identification of Incorrect Statement in Biology
Among the given statements, the incorrect one is (b) Green plants get their food from organic compounds. Green plants are autotrophs, which means they are capable of producing their own food through the process of photosynthesis. They do not get their food from organic compounds; instead, they use inorganic substances like carbon dioxide, water, and sunlight to synthesize organic compounds. Primary producers such as green plants, blue-green algae (known as cyanobacteria), and certain other organisms, harness energy directly either from sunlight through photosynthesis or from chemicals through chemosynthesis to produce these organic compounds.
(a) All green plants and blue-green algae are producers. This statement is correct because they all perform photosynthesis and act as primary producers within ecosystems.
(c) Producers prepare their own food from inorganic compounds. This is also correct, as producers use inorganic carbon, typically in the form of carbon dioxide, to create organic molecules.
(d) Plants convert solar energy into chemical energy. This is a correct statement, representing the fundamental process of photosynthesis, where light energy is captured by chlorophyll and used to transform carbon dioxide and water into glucose and oxygen.
In summary, photoautotrophs like plants, algae, and cyanobacteria use energy from sunlight to manufacture their own food. Conversely, chemoautotrophs obtain energy by oxidizing inorganic substances. Both types of organisms are essential primary producers in their respective ecosystems.