MT 4 Biology Flashcards
build larger molecules from smaller ones
Anabolic
break down larger molecules into simpler compounds
Catabolic
the amount of energy needed
to make a chemical reaction
start
Activation Energy
substances that are
changed during a chemical reaction (two names)
reactants or substrates
substances that are made by a chemical reaction
products
absorbs energy (in the form of heat or light)
endothermic
releases energy (in the form of heat or light)
exothermic
Is photosynthesis endo or exo thermic?
Endothermic
Is cellular respiration endo or exo thermic?
Exothermic
Which type of reaction has more energy in products
than reactants
Endothermic
Which type of reaction has less energy in products
than reactants
Exothermic
What is the equation representing 6CO2 + 6H2O C6H12O6 + 6O2
photosynthesis
What is the equation for photosynthesis?
6CO2 + 6H2O C6H12O6 + 6O2
What is the equation for cellular respiration?
C6H12O6 + 6O2 6CO2 + 6H2O
What is the equation representing C6H12O6 + 6O2 6CO2 + 6H2O
cellular respiration
Chemical energy in sugar is converted to chemical
energy released as ATP
cellular respiration
Light energy is stored as chemical energy in sugar
photosynthesis
What is activation energy
the amount of energy needed for a chemical reaction to start
What is denaturation
an enzymes’ active site being deformed/misshaped so it cannot do its job (since they have such specific shapes)
Catalysts
substances that speed up reactions without being permanently altered
proteins that speed up biochemical reactions by lowering activation energy
enzymes
name five ways to alter reaction rates
-pH
-temperature
-substrate concentration
-catalysts
-competitive inhibitors
What is the purpose of an enzyme?
To speed up chemical and metabolistic reactions
Where does photosynthesis take place?
Chloroplasts in plant cells
What is the equation for photosynthesis in words?
carbon dioxide+water —-> glucose+oxygen
What is the purpose of photosynthesis?
to convert sunlight, water, and carbon dioxide into chemical energy stored in glucose (to allow the plant to make its own food)
Where do light independent reactions take place?
stroma
Where do light dependent reactions take place?
grana
What’s the order of photosynthesis?
light dependent then light independent
what’s the equation of cellular respiration in words
glucose+oxygen —–> carbon dioxide+water+energy
Where is ATP released?
Grana; light dependent reactions
Where is NADPH released?
Grana; light dependent reactions
Where is NADP+ released?
Stroma; light independent reactions
Where is ADP released?
Stroma; light independent reactions
What molecules are not charged enough so they’re sent back to the grana?
NADP and ADP
What molecules are like the battery in light in/dependent reactions?
ATP and NADPH
Where does cellular respiration take place?
mitochondria
What is the order of photosynthesis
Glycosis, Krebs cycle, then Electron Transport Chain
Where does Glycosis take place?
Cytoplasm
Where does the Krebs Cycle take place?
Mitochondrial Matrix
Where does ETC take place?
Inner membrane of the mitochondria?
Anaerobic respiration:
no oxygen (fermentation)
Aerobic respiration:
oxygen present (Krebs and ETC)
to make you feel better
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