Biology Unit 4 Flashcards - Energy and ATP

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What forms does 'Energy' take?
Light, heat, sound, electrical, magnetic, mechanical, chemical and atomic energy
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Name 2 factors of 'Energy'
It can be changed from one form to another, it cannot be created or destroyed
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What is 'Energy' measured in?
Joules (j)
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Name the 6 features of why organisms need energy
Metabolism (reactions in body) , Movement, Active transport (of ions and molecules against a concentration gradient) Maintenance, repair, division of cells, Productions of substances, Maintenance of body temperature
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Describe the flow of energy through living systems
1) Light energy from the sun is converted in plants to chemical energy during photosynthesis 2) Chemical energy from PS in the form of organic molecules is converted into ATP during respiration 3) ATP is used by cells to perform useful work
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What does ATP stand for?
Adenosine triphosphate
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How many phosphate groups does ATP have?
3 - they're unstable and have low activation energy
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Describe the bonds between the phosphate groups
Unstable and easily broken
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Describe the equations that shows how ATP releases energy
ATP + water = ADP + inorganic phosphate + energy
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What is the process that converts ATP into ADP called?
Hydrolysis
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What process can regenerate ADP back to ATP?
Condensation reaction
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Name 3 features of ATP
Instant energy, immediate source, small quantities, can be regenerated
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Other cards in this set

Card 2

Front

Name 2 factors of 'Energy'

Back

It can be changed from one form to another, it cannot be created or destroyed

Card 3

Front

What is 'Energy' measured in?

Back

Preview of the front of card 3

Card 4

Front

Name the 6 features of why organisms need energy

Back

Preview of the front of card 4

Card 5

Front

Describe the flow of energy through living systems

Back

Preview of the front of card 5
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