4 ATP, water, and inorganic ions Flashcards
Important property of water:
it is a __________ in many metabolic reactions
it is a metabolite in many metabolic reactions
Important property of water:
it is the ________ where metabolic reactions occur
it is the solvent where metabolic reactions occur
Important property of water:
relatively high ______ capacity
relatively high heat capacity
Important property of water:
relatively large ________ heat of ____________
relatively large latent heat of vaporisation
Important property of water:
strong _________ between water molecules
strong cohesion between water molecules
Important property of water:
ice is less ______ than water
ice is less dense than water
What are the six main properties of water?
metabolite, solvent, high heat capacity, large latent heat of vaporisation, strong cohesion between water molecules, less dense frozen
Which 2 reactions are examples of water being a metabolite?
condensation and hydrolysis reactions
Why does water have a cooling effect from loss of water through evaporation?
it has a relatively large latent heat of vaporisation
Why can water columns be supported in tube-like transport cells of plants?
strong cohesion between water molecules
Where do inorganic ions occur in organisms?
cytoplasm and body fluids
Which ion determines pH?
hydrogen
Which inorganic ion is found in haemoglobin?
iron
Which inorganic ion is involved in the co-transport of glucose and amino acids?
sodium
Which inorganic ion is a component of DNA and RNA?
phosphate
What does ATP stand for?
adenine triphosphate
What is ATP a derivative of?
a nucleotide
What is an ATP molecule composed of?
adenine, ribose, and 3 phosphate groups
What does the hydrolysis of ATP form?
ADP (adenine diphosphate) and inorganic phosphate (Pi)
Which enzyme catalyses the hydrolysis of ATP?
ATP hydrolase
Which type of reactions can the hydrolysis of ATP be coupled with?
energy-requiring reactions within cells
What can inorganic phosphate from the hydrolysis of ATP be used for?
phosphorylation of other compounds, making them more reactive
Which type of reaction resynthesises ATP?
condensation between ADP and Pi
Which enzyme catalyses the resynthesis of ATP?
ATP synthase
