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digestion and absorption
Digestion and absorption describe the breakdown of food into small particles and their movement from the gastrointestinal lumen into the body. The main groups of nutrients absorbed from food are carbohydrates, proteins and lipids. Water, minerals and vitamins are also absorbed by the gastrointestinal (GI) tract. Carbohydrates are enzymatically broken down into monosaccharides, which are absorbed across the small intestinal epithelium by passive (fructose) and active (glucose and galactose) mecha...
- Class notes
- • 45 pages •
Digestion and absorption describe the breakdown of food into small particles and their movement from the gastrointestinal lumen into the body. The main groups of nutrients absorbed from food are carbohydrates, proteins and lipids. Water, minerals and vitamins are also absorbed by the gastrointestinal (GI) tract. Carbohydrates are enzymatically broken down into monosaccharides, which are absorbed across the small intestinal epithelium by passive (fructose) and active (glucose and galactose) mecha...
transcription notes [ central dogma]
Transcription and translation are processes a cell uses to make all proteins the body needs to function from information stored in the sequence of bases in DNA. The four bases (C, A, T/U, and G in the figure) are the building blocks of DNA and RNA. During transcription, a piece of DNA that codes for a specific gene is copied into messenger RNA (mRNA) in the nucleus of the cell. The mRNA then carries the genetic information from the DNA to the cytoplasm, where translation occurs. During translati...
- Class notes
- • 45 pages •
Transcription and translation are processes a cell uses to make all proteins the body needs to function from information stored in the sequence of bases in DNA. The four bases (C, A, T/U, and G in the figure) are the building blocks of DNA and RNA. During transcription, a piece of DNA that codes for a specific gene is copied into messenger RNA (mRNA) in the nucleus of the cell. The mRNA then carries the genetic information from the DNA to the cytoplasm, where translation occurs. During translati...