why do organisms need energy Flashcards
What is ATP synthesised from
ADP + Pi
what does Pi stand for
Inorganic phosphate
where does respiration release energy from
Respiratory substrates
what are some examples of respiratory substrates
Carbohydrates
proteins
fats
what is an anabolic reaction
the process of synthesising large molecules from small molecules using ATP
what is a catabolic reaction
process of hydrolysing the chemical bonds between large molecules to make smaller molecules, which releases energy
what type of energy is ATP
chemical potential energy
what is the equation for respiration
glucose + oxygen = water + co2 + energy
what is atp composed of
3 phosphate groups
ribose sugar
adenine base
is adenine purine or prymidine
purine
does adenine have 1 or two rings
2
what two things is released from the hydrolysis of atp
1- a release of energy due to the breaking of chemical bonds
2- release of heat
Breaking down atp releases heat/ thermal energy. How is this useful
Keeps organisms warm and maintains body temp, allows enzyme reactions to take place at optimum temperature
why is atp known as universal energy currency
produced by all living cells and is a source of energy used by all living cells
name a few reactions which use atp
endocytosis
exocytosis
active transport
anabolic reactions
dna replication
