Pre-Class Assignments Flashcards
In which part of the cell does glycolysis occur?
The cytoplasm
True or False. Glycolysis produces CO2
False
NAD+ is a common ____________ in cellular respiration
Electron Acceptor
Oxygen gas is used in which part of cellular respiration
The electron transport chain
What sort of membrane transport is associated with the electron transport chain?
active transport of H+
Where does the citric acid cycle take place in a eukaryotic cell?
Mitochondrial matrix
True or False. The oxidation of pyruvate to an acetyl group directly produces ATP.
False
Where is the electron transport chain located?
The inner mitochondrial membrane
ATP synthase has which function?
H+ channel
When electrons are removed from glucose (as it is oxidized), which molecule holds most of those electrons and therefore contains that energy?
NADH
What is a molecule that has a high amount of potential energy?
NADH
The overall chemical reaction of photosynthesis is the reverse of cellular respiratory. That means that which molecule is going to receive electrons and be reduced in photosynthesis?
CO2
The overall chemical reaction of photosynthesis is the reverse of cellular respiration. That means that which molecule is going to lose electrons and be oxidized in photosynthesis?
H2O
Where does photosynthesis occur?
The chloroplast
Chlorophyll is a pigment which means that it __________.
absorbs light of certain wavelengths
The ATP produced in photosynthesis is most closely associated with which set of reactions?
Photosystem II
The NADPH (an electron carrier) is produced during which set of reactions in photosynthesis?
Photosystem I
CO2 is converted to sugar during which stage of photosynthesis?
The Calvin cycle
True or False. Photosynthesis is responsible for the production of O2 gas which is released into the atmosphere.
True
Which stage of photosynthesis is responsible for O2 production?
Photosystem II
The Calvin Cycle is an anabolic pathway. The energy required for this metabolic pathway comes, most directly, from ________.
ATP made in light reactions
In nucleotide structure, the nitrogenous base is always attached to which carbon of the sugar?
1’
In nucleotide structure, the phosphate group is always attached to which carbon of the sugar?
5’
New nucleic acid polymers are always assembled in which direction?
5’ to 3’
Enzymes responsible for assembling new DNA strands are called _________.
DNA polymerases
The mechanism of DNA replication is described as ___________.
semi-conservative
What is the function of Topoisomerase in DNA replication?
To prevent supercoiling of DNA
Okazaki fragments are part of which of the following aspects of DNA replication?
the lagging strand
After RNA primers are added, new DNA synthesis builds on __________.
the 3’ end of the primers
Why do eukaryotic chromosomes require telomeres?
Because they are linear
