Question

compare and contrast photosynthesis and cellular respiration graphic organizer
fill in the appropriate information for each row.
photosynthesis cellular respiration
type of cell(s) it occurs in?
(plant, animal and/or
bacterial?)
which organelle does it occur
in?
purpose of the process? (why
does it occur in the cell?)
reactants involved?
products produced?
removes carbon dioxide
from the atmosphere (yes or
no?)
adds carbon dioxide to the
atmosphere (yes or no?)

Explanation:

• Type of cell(s): Photosynthesis occurs in plant cells (and some bacteria like cyanobacteria). Cellular respiration occurs in plant, animal, and bacterial cells.
• Organelle: Photosynthesis occurs in chloroplasts. Cellular respiration occurs in mitochondria (and cytoplasm for glycolysis).
• Purpose: Photosynthesis makes glucose (food) using light energy. Cellular respiration breaks down glucose to release ATP (energy).
• Reactants: Photosynthesis: \(CO_2\), \(H_2O\), light. Cellular respiration: glucose, \(O_2\).
• Products: Photosynthesis: glucose, \(O_2\). Cellular respiration: \(CO_2\), \(H_2O\), ATP.
• Carbon dioxide: Photosynthesis removes \(CO_2\) (yes). Cellular respiration adds \(CO_2\) (yes).

Answer:

	Photosynthesis	Cellular Respiration
Which organelle does it occur in?	Chloroplast	Mitochondria (and cytoplasm for glycolysis)
Purpose of the process? (Why does it occur in the cell?)	Make glucose (food) using light energy	Break down glucose to release ATP (energy)
Reactants involved?	\(CO_2\), \(H_2O\), light	Glucose, \(O_2\)
Products produced?	Glucose, \(O_2\)	\(CO_2\), \(H_2O\), ATP
Removes carbon dioxide from the atmosphere (yes or no?)	Yes	No
Adds carbon dioxide to the atmosphere (yes or no?)	No	Yes