How Organisms Obtain Energy
Vocabulary
Steps of the Light Dependent Reactions
Reactants, Products and Components of Light Dependent Reactions
Fun Facts
100
A group of organisms that obtains energy by ingesting food from other organisms.
What is a heterotroph?
100
A series of chemical reactions where the product of one is the substrate for the next.
What is a metabolic pathway?
100
Light from the sun strikes this protein that excites an electron and splits a water molecule.
What is photosystem II?
100
Products of phase one of photosynthesis. Move to the Calvin Cycle and are used in the Dark Reactions.
What are ATP and NADPH?
100
The main pigment responsible for the color of plants (green). Also absorb sunlight. Comes in two main types.
What is chlorophyll?
200
A group of organisms that make their own food
What is an autotroph?
200
The study of the flow and transformation of energy in the universe.
What is thermodynamics?
200
Hydrogen ions move out of this channel protein from an area of high concentration to an area of low concentration.
What is the ATP Synthase?
200
A cell that can carry out photosynthesis and has membrane bound organelles such as a chloroplasts.
What is a eukaryotic cell?
200
The ability to do work
What is energy?
300
The group that grass, shrubs and trees belong to (heterotrophs, autotrophs, chemoautotrophs)
What is an autotroph?
300
States that energy cannot be created or destroyed.
What is the first law of thermodynamics?
300
The protein that absorbs light and was discovered first, but occurs second in the photosynthesis process.
What is photosystem I?
300
Carbon Dioxide, Water, and Sunlight
What are the reactants that start the equation of the process of photosynthesis?
300
One stack of thylakoids. Singular version of grana.
What is a granum?
400
When energy is converted from one form to another, this is lost and in this form
What is the usable energy that is lost as heat?
400
Energy cannot be converted from one form to another without the loss of usable energy.
What is the second law of thermodynamics?
400
The boundary between the stroma and the thylakoid space and where phase I of photosynthesis occurs. Contains the pigments that are used to capture sunlight.
What is the thylakoid membrane?
400
Glucose and oxygen
What are the products created from photosynthesis?
400
1/256 of a second
How long does the whole process of photosynthesis take to occur?
500
Organisms that use inorganic compounds as their source of energy.
What is a chemoautotroph?
500
When small molecules are combined to form larger molecules and store energy.
What is an anabolic pathway?
500
A protein that is the final electron acceptor. The electron moves from this protein to an electron carrier to later form NADPH (energy storing molecule)
What is Ferroxidin?
500
Another compound that absorbs sunlight. Can be found as chlorophyll or carotenoids. Found in both photosystem II and I.
What is a pigment?
500
Red orange and brown pigments revealed when plants break down chlorophyll. Are usually visible during Autumn.
What are carotenoids?
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