Biology Lecture 13

Biology Lecture 13 - Biology Lecture 13 Endomembrane system...

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Biology Lecture 13 Endomembrane system organelles and plasma membrane have a single layered membrane and the nuclear envelope has a double bilayer membrane Vacuoles are much larger membrane-enclosed sacs Found commonly in plants and protists and their location determines their function Central vacuole is in many mature plants Store stuff Provide turgor (makes the plant rigid) for plants Protists have food vacuoles and contractile vacuoles which pump out water from the cell maintaining the balance of salt concentration of the cell Mitochondria are found in all eukaryotic cells Converts chemical energy found in sugar to ATP (source of energy for the cell) Cellular respiration is how chemical energy converts to ATP Chloroplasts are found only in plants and algae Photosynthesis occurs here (converts light energy to sugar) Mitochondria and Chloroplasts: They aren’t part of the endomembrane system Contain a double bilayer membrane Have internal ribosomes and small amounts of DNA i.These proteins are not synthesized by rER
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Biology Lecture 13 - Biology Lecture 13 Endomembrane system...

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