Untuk Presentasi anak SMP kelas 8 dalam BAB Bahan Kimia Berbahaya dalam Rumah tangga, Mungkin slide ini dapat membatu guru maupun murid dalam materi ini.
Materi Presentasi Kimia untuk anak SMP Kelas VIII, yang sudah saya susun secara detail dan menarik, sehingga mudah untuk dipelajari sendiri.
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Lipid metabolism is the synthesis and degradation of lipids in cells, involving the breakdown and storage of fats for energy and the synthesis of structural and functional lipids, such as those involved in the construction of cell membranes. In animals, these fats are obtained from food and are synthesized by the liver. Lipogenesis is the process of synthesizing these fats. The majority of lipids found in the human body from ingesting food are triglycerides and cholesterol.[4] Other types of lipids found in the body are fatty acids and membrane lipids. Lipid metabolism is often considered as the digestion and absorption process of dietary fat; however, there are two sources of fats that organisms can use to obtain energy: from consumed dietary fats and from stored fat.[5] Vertebrates (including humans) use both sources of fat to produce energy for organs such as the heart to function. Since lipids are hydrophobic molecules, they need to be solubilized before their metabolism can begin. Lipid metabolism often begins with hydrolysis, which occurs with the help of various enzymes in the digestive system.Lipid metabolism also occurs in plants, though the processes differ in some ways when compared to animals.[8] The second step after the hydrolysis is the absorption of the fatty acids into the epithelial cells of the intestinal wall.[6] In the epithelial cells, fatty acids are packaged and transported to the rest of the body.[9]
Metabolic processes include lipid digestion, lipid absorption, lipid transportation, lipid storage, lipid catabolism, and lipid biosynthesis. Lipid catabolism is accomplished by a process known as beta oxidation which takes place in the mitochondria and peroxisome cell organelles.
4. Kreb’s Cycle
Figure E.3, A29
Acetyl CoA Carbon Dioxide
C2H4O2 to CO2
Energy produced/Acetyl CoA (x2 for /Glucose)
3 NADH
1 FADH
1 ATP
Metabolic Wheel
Fats, amino acids, etc. enter or leave
Citrate is product of first reaction
Simmons Citrate Media
Chapter 5
5. Electron Transport Chain
NADH oxidized to NAD
FAD reduced to FADH
Cytochromes shuffle electrons finally to O2
Cytochrome Oxidase important in G - ID
H2O formed and ATP
3 ATP / 1 NADH
2 ATP / 1 FADH
Chapter 5
19. METABOLISME PROTEIN
Katabolisme Protein
Metabolisme Asam Amino
Katabolisme Asam Amino
Biosintesis Asam Amino
Produk Khusus
Sintesis Protein
Proses Replikasi
Proses Transkripsi
Proses Translasi
20. FUNGSI PROTEIN
Struktural
Katalitik
Transport
Keseimbangan asam basa cairan tubuh
Sistem pertahanan tubuh
Pengendalian metabolisme (hormon)
21. PROTEIN :
Polimer asam amino (polipeptida)
Mengandung 4 kalori per gram
BB 70 kg butuh 45 gr protein yg bermutu per hari
untuk nitrogen balance
Banyak protein dapat disintesis tubuh, beberapa harus
tersedia dlm juml cukup
22. PENCERNAAN + ABSORBSI :
Protein tidak diserap
Protein menjadi asam amino, di, tripeptida
Ensim pencernaan (protease) :
pepsin (lambung)
tripsin, chymotripsin, carboxypeptidase
(pankreas)
Villi usus halus + peptidase :
hidrolisa lebih lanjut jadi aa bebas, peptida kecil
masuk kedarah
26. METABOLISME ASAM AMINO
Metabolisme Asam Amino
Katabolisme Asam Amino
Katabolisme Atom N
Transaminasi
Deaminasi Oksidatif
Pembentukan & Transport NH3
Siklus Urea & Gangguannya
Katabolisme Atom C
Biosintesis Asam Amino
Produk Khusus
