Nad+ Nadh Flashcards
(26 cards)
What does NAD+ stand for?
Nicotinamide adenine dinucleotide
True or False: NAD+ is an oxidized form of the molecule.
True
What is the reduced form of NAD+?
NADH
Fill in the blank: NAD+ plays a crucial role in ________ metabolism.
cellular
What is the primary function of NAD+ in the cell?
To act as a coenzyme in redox reactions
Which process primarily uses NAD+?
Cellular respiration
True or False: NADH can be converted back to NAD+.
True
What type of reactions does NAD+ participate in?
Oxidation-reduction (redox) reactions
What is the role of NADH in energy production?
It acts as an electron carrier.
Multiple Choice: Which of the following is NOT a function of NAD+? A) Energy production B) DNA repair C) Protein synthesis
C) Protein synthesis
What vitamin is a precursor to NAD+?
Vitamin B3 (niacin)
True or False: NAD+ is involved in glycolysis.
True
Fill in the blank: The conversion of NAD+ to NADH is ________ (oxidation/reduction).
reduction
What is the significance of NAD+/NADH ratio in cells?
It indicates the cellular metabolic state.
Which enzyme is responsible for the conversion of NAD+ to NADH?
Dehydrogenases
True or False: NAD+ is only found in eukaryotic cells.
False
What is one way NAD+ levels can be increased in the body?
Through dietary intake of niacin.
Multiple Choice: What happens when NAD+ is reduced to NADH? A) Energy is released B) Energy is consumed C) No energy change
B) Energy is consumed
What role does NADH play in the electron transport chain?
It donates electrons to the chain.
Fill in the blank: High levels of NADH indicate a ________ energy state in the cell.
high
What metabolic pathway produces NADH?
Glycolysis
True or False: NAD+ can be synthesized de novo in the human body.
True
What is one consequence of depleted NAD+ levels?
Reduced energy production
Multiple Choice: NAD+ is a derivative of which nucleotide? A) ATP B) GTP C) AMP
A) ATP
