Respiration & Photosynthesis pt 1 Flashcards
The process of breaking down food (organic molecules) to release energy and generate ATP is called…
Respiration
The type of respiration pathway (the main one for plants & most organisms) that require oxygen is…
Aerobic respiration
The first stage of respiration where sugars are converted to pyruvate is called….
Glycosis
During glycolyis glucose is split into two 3-carbon molecules that are modified (with the release of energy) to become pyruvate. What is this substance that initially results following the split called and why is it significant far beyond just being a glycolysis intermediate?
Glyceraldehyde 3-phospate (PGAL); it’s also the product of photosynthesis and the source of all other organic molecules known to life.
What is one of the substances that capture energized electrons during glycolysis and the citric acid cycle called…
NAD+/ NADH
During aerobic respiration, during what stage is most the ATP generated….
Electron Transport
What drives the phosphorylation of ADP to ATP during respiratory electron transport?
electrical flow pumps protons into the inter-membrane space; these diffuse back to the mitochondrial matrix through ATP synthase, which turns & phosphorylates ADP.
In embryophyte plants, where does most of the photosynthesis take place?
Leaf, mesophyll, and chloroplast
X-rays, gamma rays, ultra violet radiation, visible light, radiant heat, microwaves, and radio waves are all types of….
Electromagnetic radiation
What type (colors & wavelength) of light do plant chloroplasts use most efficiently to energize photosynthesis?
Red & Blue / violet light
What is the role of phycobilins in embryophyte plants?
none, though they are green-absorbing accessory pigments, they are present in red algae and cyanobacteria but not in embryophyte plants.
True or false: Embryophyte plant chloroplasts make absolutely no use of green light.
false; though green light is absorbed rather poorly, if it comes in contact with photosynthetic pigments enough times as it passes through a leaf much of it will ultimately be absorbed; it is particularly important to cells deeper in a leaf or for shaded leaves because there, red & blue light is depleted.
