Which statement is true about organisms in the Plantae kingdom?

Which statement is true about organisms in the Plantae kingdom?

• A. They are all unicellular
• B. They are photosynthetic
• C. They obtain energy by chemosynthesis
• D. They are primarily heterotrophic

Answer: (B)

Plants are organisms in the Plantae kingdom that predominantly capture light energy to convert carbon dioxide and water into glucose through photosynthesis. This makes them autotrophs, able to synthesize their own organic molecules rather than needing to consume others. They contain chloroplasts with chlorophyll, which is what lets them trap light and drive the chemical reactions of photosynthesis, releasing oxygen as a byproduct. Because of this, the statement that they are photosynthetic best describes the group. Unicellular is inaccurate because plants are mainly multicellular. Chemosynthesis is a process used by some bacteria and archaea to obtain energy from inorganic chemicals, not a method plants use. Heterotrophic means obtaining energy by consuming other organisms, which is not the general mode for plants, since they usually produce their own food through photosynthesis (even though a few parasitic or non-photosynthetic plants exist, the typical characteristic of Plantae is photosynthetic autotrophy).

Plants are organisms in the Plantae kingdom that predominantly capture light energy to convert carbon dioxide and water into glucose through photosynthesis. This makes them autotrophs, able to synthesize their own organic molecules rather than needing to consume others. They contain chloroplasts with chlorophyll, which is what lets them trap light and drive the chemical reactions of photosynthesis, releasing oxygen as a byproduct. Because of this, the statement that they are photosynthetic best describes the group.

Unicellular is inaccurate because plants are mainly multicellular. Chemosynthesis is a process used by some bacteria and archaea to obtain energy from inorganic chemicals, not a method plants use. Heterotrophic means obtaining energy by consuming other organisms, which is not the general mode for plants, since they usually produce their own food through photosynthesis (even though a few parasitic or non-photosynthetic plants exist, the typical characteristic of Plantae is photosynthetic autotrophy).