Cell membrane biochemistry pdf/lecture

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Lecture 2. Biology of the Cell. Living systems are organized into cells. Cells are characteristically microscopic in size. Although there are exceptions, 1gram protein give 4 calories Types of receptors: 1- Receptors on cell membrane 2- receptors inside cells on cytoplasm or in nucleus ‫ لكن لو‬,‫كل هورمون مش‬ Plasma proteins are normal. Plasma proteins are low. The balance across the capillary membrane may be disturbed if plasma protein concentration changestest for chloride, electrolyte, protein, glucose in esf. * saliva Blood: is a suspension of cells in a protein - salt either side of membrane. Cellular processes are highly regulated ,all metabolic pathways , chemical changes and the cellular biochemistry are controlled and monitored by the cells . Non-membrane-bound phospholipids : 1-Structural: 2-Anchoring: 3-Signaling: Predominant lipids of cell membranes. Attaching some proteins to membranes. Lipids metabolism. - Proteins metabolism. - Nucleotides and nucleic acids. Out lines of this lecture: • Metabolic pathways. • Chemical reaction and Energy. Glucagon is a peptide hormone, produced by alpha cells of the pancreas, Trimeric(has 3 subunits) membrane proteins (αβγ subunits). Topics. Weeks Lectures. Definition and Introduction: General introduction to Biochemistry. Elements: Atoms (C, O, H, etc) and essential elements (Mg, Ca, 10. Biological Transport and cell membrane. 11. Biochemistry of endocrine glands. 12. Hormonal action & Cell signaling. Date. Title of the lecture.