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Biology Unit 4
Terms in this set (35)
Summarize the process of photosynthesis.
Photosynthesis uses the energy of sunlight to convert water and carbon dioxide into high-energy sugars such as starches and oxygen.
What is the overall equation for photosynthesis?
6CO2 + 6H2O -light energy-> C6H12O6 + 6O2
Summarize the process of cellular respiration.
Cellular respiration is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen.
What is the overall equation for cellular respiration?
6O2 + C6H12O6 -----> 6CO2 + 6H2O + Energy
What is the difference between aerobic and anaerobic respiration?
Aerobic respiration occurs in the presence of oxygen and produces 36 NET ATP. Anaerobic respiration occurs in the absence of oxygen and produces 2 NET ATP.
Which molecules go into glucose during photosynthesis?
Carbon dioxide and water are a part of glucose in the products of photosynthesis.
What molecules go into oxygen during photosynthesis?
The reactant water, goes into the product of oxygen during photosynthesis.
What is the energy conversion that happens in photosynthesis?
Light energy to chemical energy.
What energy conversion occurs during cellular respiration?
Chemical energy to chemical energy. (breaking down glucose that releases energy)
What other things are required in photosynthesis, besides water and carbon dioxide?
Light and chlorophyll, a molecule in chloroplasts.
Is ATP stored or released during photosynthesis?
Is ATP stored or released during cellular respiration?
In which organelle does photosynthesis occur in?
In which organelle does cellular respiration occur in?
What type of organism does photosynthesis occur in?
What type of organisms does cellular respiration occur in?
Animals and plants.
What is fermentation?
It releases energy from food molecules by producing ATP in the absence of oxygen.
Is fermentation aerobic or anaerobic?
Anaerobic, because fermentation does not require oxygen.
How is energy transferred and transformed from the sun to energy-rich molecules during photosynthesis?
Plants gather the sun's energy with light-absorbing molecules called pigments. The plants principal pigment is chlorophyll. Chlorophyll absorbs light very well. When chlorophyll absorbs light, much of the energy is transferred directly to the electrons in chloroplast. The light- dependent reactions use energy from sunlight to produce ATP, NADPH, and oxygen. This takes place within the thylakoid membranes of chloroplasts.
What is the formula for glucose?
What do plant cells contain that allow them to perform cellular respiration and photosynthesis?
Chloroplast and mitochondrion.
Why do the leaves of the plant appear green?
Because chlorophyll reflects green light.
What are the products of photosynthesis?
Sugars (glucose) and oxygen
What are the reactants of photosynthesis?
Carbon dioxide and water
What are the products of cellular respiration?
Carbon dioxide, water and energy
What are the reactants of cellular respiration?
Oxygen and glucose
What relationships are there between photosynthesis and cellular respiration?
Respiration and photosynthesis are dependent on each other. Without photosynthesis, respiration would not occur and vice versa.
What is the electron transport chain?
-uses the high-energy electrons from the Krebs cycle to convert ADP into ATP.
What are autotrophs?
They harness the sun's energy and convert it into chemical energy usable by the organism. Energy is directly from the sun.
What are heterotrophs?
They ingest other organisms as an energy source. Energy indirectly from the sun.
What is another word for autotrophs?
What is another word for heterotrophs?
How much ATP is produced during aerobic respiration?
How much ATP is produced during anaerobic respiration?
What is 'organic'?
A carbon to carbon bond
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