METABOLISM Flashcards
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a network of metabolic/biochemical reactions
Metabolism
Carried out in living cells in a well organized, integrated, and regulated manner
Metabolism
Uses light to drive synthesis of organic molecules
Phototrophs
Plants
Sum of all the chemical activities taking place in an organism
Metabolism
Animals use these as building blocks
**Heterotrophs
Animals
What elements are recyled in Respiration?
CO2 and H2O
When larger molecules are broken down into smaller ones (Exothermic); releases energy
Catabolism
Complex molecules synthesized from simpler substances (Endothermic); absorbs and stores energy
Anabolism
These are energy-yielding nutrients in Catabolism
1. Carbohydrates
2. Fats
3. Proteins
These are the cell macromolecules in Anabolism
1. Proteins
2. Polysaccharides
3. Lipids
4. Nucleic Acids
This is the energy-poor end products in Catabolism
1. H20
2. CO2
3. NH3
These are the precursor molecules in Anabolism
1. Amino acids
2. Sugars
3. Fatty acids
4. Nitrogenous bases
This pathways serve both in catabolism and anabolism
Amphibolic pathways
This occur at the crossroads of metabolism and links between anabolic and catabolic pathways
Amphibolic pathways
This means stimulation and inhibationn of pathways as per cellular need
Regulation
This chemical/protein regulates the metabolic pathways
Hormones
These are regulated to allow the organism to respond to changing conditions
Metabolic Pathways
Every metabolic pathway has its
Specific regulatory enzymes/key enzymes
Hormones regulates by either
stimulating or inhibiting key enzymes of the pathway
TRUE OR FALSE
Enzymes along with Coenzymes biocatalyze specific metabolic reactions
TRUE
TRUE OR FALSE
Enzymes are the Functional units of Life
FALSE
“Functional units of METABOLISM”
TRUE OR FALSE
Enzyme reactions are organized into discrete pathways
TRUE
Regulators of enzyme activity
Hormones