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What parts of an algal cell carry out photosynthesis and cellular respiration?
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Algae
The macroscopic genus of algae known as Acetabularia is commonly called âmermaid's wine glassâ because of the distinctive umbrella-like shape of the tips of its stalks.
In algal cells, photosynthesis and cellular respiration are carried out by specific organelles:
- Photosynthesis: This process occurs within the chloroplasts. These organelles contain membranous sacs called thylakoids, which house the light-harvesting pigmentsâsuch as chlorophylls, carotenoids, and phycobiliproteinsânecessary to convert light energy, carbon dioxide, and water into sugars.12
- Cellular Respiration: This process takes place in the mitochondria. Within these organelles, food molecules are broken down to release carbon dioxide, water, and chemical bond energy. The inner membrane of the mitochondrion is folded into structures called cristae, which provide the necessary surface area for these respiratory reactions to occur.1