TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Animals, some algae, and phytoplankton, but not plants
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Only animals, since they are the only organisms that go through the process of cellular respiration
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Humans only
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All organisms that break down glucose for food; including plants and animals
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Detailed explanation-1: -Oxygen is required for cellular respiration and is used to break down nutrients, like sugar, to generate ATP (energy) and carbon dioxide and water (waste). Organisms from all kingdoms of life, including bacteria, archaea, plants, protists, animals, and fungi, can use cellular respiration.
Detailed explanation-2: -Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions. Cellular respiration takes place in the cells of animals, plants, and fungi, and also in algae and other protists.
Detailed explanation-3: -Cellular respiration occurs in both autotrophic and heterotrophic organisms, where energy becomes available to the organism most commonly through the conversion of adenosine diphosphate (ADP) to adenosine triphosphate (ATP). There are two main types of cellular respiration-aerobic respiration and anaerobic respiration.
Detailed explanation-4: -Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis (Figure 1). Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).
Detailed explanation-5: -Cells that can do photosynthesis include all plant cells, algae, and some bacteria. All cells do cellular respiration to make ATP. However, some cells use aerobic cellular respiration that requires oxygen, like animal cells, and other cells use anaerobic respiration which does not require oxygen, like some bacteria.