Question

students were provided wet-samples (kept in water) of three living organisms, and were asked to determine if the specimen are performing photosynthesis, aerobic cellular respiration, or anaerobic cellular respiration. their findings are organized in the table below.
specimen | reaction to sunlight | reaction to carbon dioxide (co₂) | reaction to oxygen (o₂)
#1 | no reaction | no reaction | atp production increased
#2 | no reaction | no reaction | no reaction
#3 | oxygen bubbles released | glucose molecules created | no reaction
question: based on the information above, which of the following statements is false?

• specimen #2 is a simple organism like yeast or bacteria
• the only specimen that can perform aerobic cellular respiration is specimen #1
• specimen #3 is an autotroph
• all three specimen are capable of performing anaerobic cellular respiration

Explanation:

1. Analyze each option:

• Option 1: Specimen #2 being a simple organism like yeast or bacteria: Yeast and bacteria are simple organisms, and from the table, Specimen #2 has no reactions to sunlight, CO₂, O₂, etc., which is consistent with simple organisms (they don't do photosynthesis, and if they are anaerobic or non - respiring in the tested ways, this could hold.
• Option 2: The only specimen that can perform aerobic cellular respiration is specimen #1: Aerobic respiration requires oxygen and produces ATP. Specimen #1 has increased ATP production with oxygen, so this statement is true.
• Option 3: Specimen #3 is an autotroph: Autotrophs make their own food (like glucose) from CO₂ and sunlight (or other inorganic sources). Specimen #3 creates glucose molecules and releases oxygen bubbles (like photosynthesis), so it is an autotroph. This statement is true.
• Option 4: All three specimens are capable of performing anaerobic cellular respiration: Anaerobic respiration occurs without oxygen and can produce ATP. Specimen #1 has increased ATP with oxygen (so it can do aerobic, but also may do anaerobic as many organisms can switch), Specimen #2 has no reaction to oxygen but could do anaerobic, Specimen #3: The table shows no reaction to oxygen, but it makes glucose (photosynthesis) and we don't have info against it doing anaerobic respiration. However, the option says "All three specimens are capable...", but let's re - evaluate. Wait, the false statement: Wait, the question is which statement is false. Wait, maybe I made a mistake. Wait, let's check the table again. Specimen #3: reaction to sunlight - oxygen bubbles released, reaction to CO₂ - glucose molecules created (so photosynthesis). Reaction to oxygen - no reaction, reaction to... Wait, anaerobic respiration: does Specimen #3 do it? The table has no reaction for ATP production without oxygen? Wait, no, the table for Specimen #3: reaction to oxygen - no reaction, reaction to... Wait, the ATP production for Specimen #3 is no reaction? Wait, the table columns: Reaction to sunlight, CO₂, Oxygen, and then ATP production? Wait, Specimen #1: ATP production increased (with oxygen, so aerobic), but what about anaerobic? The table doesn't show anaerobic ATP production, but the option says "All three specimens are capable of performing anaerobic cellular respiration". But from the table, Specimen #2 has no reaction to oxygen and no ATP production? Wait, no, the table for Specimen #2: reaction to oxygen - no reaction, ATP production - no reaction. Specimen #3: ATP production - no reaction. Only Specimen #1 has ATP production (with oxygen). So the statement "All three specimens are capable of performing anaerobic cellular respiration" is false because Specimen #2 and #3 have no ATP production (which is a key part of respiration, aerobic or anaerobic). Wait, maybe I misread earlier. So the false statement is the one about all three being capable of anaerobic respiration.

Answer:

The false statement is "All three specimen are capable of performing anaerobic cellular respiration" (the option with the blue circle in the original image, which is the last option).