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40 Cards in this Set

  • Front
  • Back
T/F: All the foodstuffs and vitamins that animals use come either directly or indirectly from green plants.
True
The final electron/hydrogen acceptor and electron donor in noncyclic photophosphorylation are...
NADP+H/water
Photosystem II functions mainly to ________, while photosystem I functions mainly to ________.
split H2O & make ATP/ make NADPH
Carbon dioxide is fixed into carbon compunds (foodstuffs) via _______, and then broken down/returned to the atmosphere via _________.
photosynthesis/respiration
Global warming is being enhanced/speedup mostly via the ________.
burning fossils fuels
In which stage of the cell cycle would these characteristics occur? Usually longest part of the cycle and when a cell does its job, cell increases in mass back to initial size (2X), number of cytoplasmic components & organelles double, and DNA is duplicated or replicated.
G-1 interphase
T/F: The orderly sequence of the phases of Mitosis is prophasse, interphase, metaphase, anaphase, and telophase.
False
Meiosis produces _______ cells, while mitosis produces _______ cells.
4 haploid (1N) cells/ 2 identical diploid (2N) cells
T/F: Chromatids are replicates of a chromosome which will separate from each other during equational division.
True
T/F: The spindle fibers attach to the chromatids at the centromeres and pull them apart during telophase of mitosis.
False
The nuclear membrane and nucleolus dissapear during _____, and reappear during _____.
prophase/telophase
Before a cell divides into two new cells, new copies of DNA for the new cells are made during what phase of the cell cycle?
S-1
Plant cells produce one molecule of O2 ________.
by splitting two molecules of water
The carbon dioxide acceptor in the Calvin-Benson cycle/Dark Reaction is ____.
ribulose biphosphate (RuBP)
T/F: As days get shorter in the fall, chlorophyll production becomes slower than its destruction/breakdown, so now the other pigment colors show up.
true
T/F: All of the pigments in the plant cell absorb/use the same wavelength of light.
False
How many molecules of PGAL are used to regenerate the six molecules of RuBP?
1
The light reaction, photophosphorylation ______.
produces both ATP and NADPH
______ is a c3 plant because it fixes carbon to RuBP.
Corn
The C4 pathway involves fixing carbon first to _____ and then to ____.
PEPA/RuBP
Some of the cells in the mesophyll in a _____ leaf are arranged in a ring around the leaf vein as a bundle sheath cells and have a special function.
C-4
In a C-4 plant, carbon dioxide is first used to form ____, and then used to form a second compound _____ in the Calvin-Benson Cycle.
oxaloacetic/malate, PGA
T/F: The oxygen in our atmosphere is a product of photosynthesis, while most of carbon dioxide in our atmosphere is a product of aerobic respriation of carbon foodstuffs.
True
Most of the carbon dioxide released into the air is consumed by _____, which also produce most of our oxygen.
algae in the ocean
Stomata on leaves open and close in relation to _____ conditions while the _____ functions to stop ____ loss.
water/waxy coating on leaves/water
T/F: As the days get longer in the fall, photosynthesis speeds up to make more glucose for winter.
False
The leaves of many trees turn different colors in the fall because _______.
cooler temperatures slow down production of cholorphyll
T/F: Trees that grow in the shade probably are less efficient in trapping light energy and converting it to chemical energy than trees that require full sun.
False
For each six molecules of carbon dioxide fixed in the light-independent/dark reactions, how many molecules of PGAL are produced and how many glucose molecules are produced?
12/3
The excess glucose made by photosynthesis is usually converted to ______.
starch and sucrose
______ plants have their stomata open at night and closed by day.
CAM plants
Glycolysis occurs _______.
in the cytoplasm
The end product of glycolysis is ______ whereas the first produced in the Krebs Cycle is _____.
pyruvate/citrate
How many ATP molecules (net yield) are produced per molecule of glucose degraded during glycolysis without oxygen ____ and aerobic respiration _____?
2, 38
Aerobes use _____ as the final electron acceptor in electron transport phosphorylation, whereas anaerobes use ______ as the final electron acceptor.
oxygen/pyruvic acid
Under anaerobic conditions muscle cells produce _____, while yeast cells produce ______.
lactic acid/ethyl alcohol
Sour cream, sour milk & yogurt are produced by bacteria that form ______.
lactic acid or acetic acid
The actual site of greatest number of ATP molecules produced occurs in _____.
electron transport phosphorylation
_______ is capable of being reduced during both glycolysis and the Krebs cycle, and which is reduced only in Krebs cycle.
NAD+ & FAD+
T/F: The importance of glycolysis and Krebs cycle is in producing chemical energy for cells to do cell work.
True