Energy in Organisms

Organisms and Energy

​How organisms get their energy:

Autotroph: "Producer"

• Build organic molecules from inorganic compounds. (like CO₂)

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​Heterotroph: "Consumer"

• ​Consume & digest organic molecules to build their own.

​How organisms get their energy:

"Photo"

• Obtain energy from light

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​"Chemo"

• ​Obtain energy by breaking down organic or inorganic material

​Autotrophs

​Photoautotrophs:

• Put ATP together with light energy

• ​Can build with inorganic molecules

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​Autotrophs

​Chemoautotrophs:

• ​Put ATP together using energy from inorganic carbon sources

• ​​Can build with inorganic molecules

​Heterotrophs

Photoheterotrophs

• Obtain ATP from light energy

• Require organic carbon sources

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​Chemoheterotrophs

• ​Obtain ATP from digesting organic molecules

• ​Require organic carbon sources

Multiple Choice

Autotroph means the organism will....

• Build organic molecules from other organic molecules

• Build organic molecules using inorganic molecules

• Always obtain energy from sunlight

• Always obtain energy by breaking down organic molecules

Multiple Choice

Humans fit into which category?

• Photoautotroph

• Chemoautotroph

• Photoheterotroph

• Chemoheterotroph

Multiple Choice

What process enables plants to be considered Photoautotrophs?

• Cellular Respiration

• Chemosynthesis

• Photosynthesis

• Metabolismh

ATP and ADP​

The energy molecules​

​Adenosine Triphosphate

"Charged Battery"​

• ​Nucleotide with 3 phosphate groups

• ​Energy stored in bonds​

​Adenosine Diphosphate

"Drained Battery"​

• ​Nucleotide with 2 phosphate groups

• ​Energy is released when third phosphate is removed

• Some energy still stored in bond between other two phosphates

​Adenosine Monophosphate

"Completely Dead Battery"​

• ​Nucleotide with 1 phosphate groups

• No stored energy

• ​Can act as a signal molecule for cells that they need to perform cell respiration

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Multiple Choice

Where is energy stored in ATP and ADP?

• Phosphate groups

• The bonds between phosphate groups

• The sugar molecule

• The nitrogen molecule

The Equations​

Photosynthesis & Cellular Respiration​

Multiple Select

What is produced in Photosynthesis?

• Glucose

• Oxygen

• Carbon Dioxide

• Water

Multiple Select

What is required for Cellular Respiration to occur? (The reactants)

• Glucose

• Oxygen

• Carbon Dioxide

• Water

Multiple Select

What is produced in Cellular Respiration, besides ATP?

• Glucose

• Oxygen

• Carbon Dioxide

• Water

Multiple Select

What is required for Photosynthesis to occur, besides the light energy? (The reactants)

• Glucose

• Oxygen

• Carbon Dioxide

• Water

Multiple Choice

Where does photosynthesis occur in the cell?

• Mitochondria

• Chloroplasts

• Cytoplasm

• Cell Membrane

Multiple Choice

Where does cellular respiration occur in the cell?

• Mitochondria

• Chloroplasts

• Cytoplasm

• Cell Membrane

Open Ended

Describe the relationship between Photosynthesis and Cellular Respiration.