Cell Membrane Structure And Function Ppt
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Structures that carry out specific functions.
Cell membrane structure and function ppt. The Plasma membrane is a thin bi- layered structure which surrounds each cell consists of lipids phospholipids 75 cholesterol 20glycolipids 5 proteins partially or completely embedded carbohydrates etc 6-10 nm thick. Protective barrier around cell. The structure and function of cellular organelles the cell is the smallest unit of life.
C ell found various components with specific Function These components include- cell wall cell membrane cytoplasm nucleus and cell organelles etc. The cell membrane is a multifaceted membrane that envelopes a cells cytoplasm. Plasma membrane is asymmetrical.
Vesicles may combine with plasma membrane to secrete contents Lysosomes Contain digestive enzymes Functions Aid in cell renewal Break down old cell parts Digests invaders Vacuoles Membrane bound storage sacs More common in plants than animals Contents Water Food wastes Mitochondria Break down fuel molecules cellular respiration Glucose Fatty acids Release energy ATP. Learn the fluid state of membranes and the movement of its lipids and proteins. Protein molecules floating on within the lipid layers help molecules move in out of the cell.
Functions of the Plasma Membrane selectively isolates the cells contents from the external environment regulates the exchange of essential substances between the cells contents and the external environment allows communication with other cells gives strength shape and protection to the cell. Nucleus Directs cell activities. Mosaic made of a combination of molecules lipids proteins and carbs Cell Membrane Animation Phospholipids Fatty acid.
JacksonChapter 7Membrane Structure andFunction Lectures by Erin Barley Kathleen Fitzpatrick 2011 Pearson Education Inc. Cell wall Great wall of China Chloroplast Site of photosynthesis Vacuole large central takes up most part of cell Cell membrane Regulates substances in and out of the cell. The Structure and Function of the Cell Membrane PPT Notes Cells function similarly in all living organisms.
PowerPoint PPT presentation. The folds of the inner membrane are called cristae. It protects the integrity of the cell along with supporting the cell and helping to maintain the cells shape.
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