16 Questions
What is the function of adenosine triphosphate (ATP) in the cell?
Short-term energy storage and transport
Which parts make up an ATP molecule?
Adenine, ribose, two phosphate groups
What happens to the third phosphate group in an ATP molecule during hydrolysis?
It is released as inorganic phosphate (Pi)
What is the relationship between ATP and ADP in terms of energy storage?
ATP is the charged battery while ADP is the uncharged/dead battery
What characterizes the reversible nature of the hydrolysis of ATP to ADP?
The ability of ADP to be converted back to ATP through cellular processes
What is the significance of the negatively charged phosphate groups in ATP?
They store energy in the form of chemical bonds
What happens when ATP is broken down?
Energy is released and ADP is formed
Why does the hydrolysis of ATP not only result in a release of energy but also prevent organisms from overheating?
The dissipation of energy excites nearby molecules, resulting in heat
What is the main function of chlorophyll in leaves?
To absorb light energy from the sun
What determines the variations in color in plants?
The amount and structure of pigments
Why does chlorophyll appear green to our eyes?
It absorbs light on all color ranges, transmitting only green to our eyes
Which type of light does chlorophyll a readily absorb for light-dependent photosynthesis?
Violet/blue and red light
What is the main function of accessory pigments in plants?
To absorb wavelengths of light that chlorophyll cannot absorb effectively
What would happen if all colors or wavelengths of visible light are absorbed and none are reflected by a pigment?
The pigment appears black to our eyes
Why does ATP regeneration need to be energetically unfavorable?
To be directly linked with an energetically favorable reaction through energy coupling
Why is the transfer of energy from one chemical reaction to another important in a cell?
Energy in a cell needs to be linked to other processes in order to be useful.
Test your knowledge on ATP structure and hydrolysis in this biology review quiz. Learn about the composition of ATP and its role in energy storage and transport within cells.
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