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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.
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True
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The final electron/hydrogen acceptor and electron donor in noncyclic photophosphorylation are...
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NADP+H/water
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Photosystem II functions mainly to ________, while photosystem I functions mainly to ________.
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split H2O & make ATP/ make NADPH
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Carbon dioxide is fixed into carbon compunds (foodstuffs) via _______, and then broken down/returned to the atmosphere via _________.
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photosynthesis/respiration
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Global warming is being enhanced/speedup mostly via the ________.
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burning fossils fuels
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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.
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G-1 interphase
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T/F: The orderly sequence of the phases of Mitosis is prophasse, interphase, metaphase, anaphase, and telophase.
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False
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Meiosis produces _______ cells, while mitosis produces _______ cells.
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4 haploid (1N) cells/ 2 identical diploid (2N) cells
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T/F: Chromatids are replicates of a chromosome which will separate from each other during equational division.
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True
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T/F: The spindle fibers attach to the chromatids at the centromeres and pull them apart during telophase of mitosis.
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False
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The nuclear membrane and nucleolus dissapear during _____, and reappear during _____.
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prophase/telophase
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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?
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S-1
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Plant cells produce one molecule of O2 ________.
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by splitting two molecules of water
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The carbon dioxide acceptor in the Calvin-Benson cycle/Dark Reaction is ____.
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ribulose biphosphate (RuBP)
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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.
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true
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T/F: All of the pigments in the plant cell absorb/use the same wavelength of light.
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False
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How many molecules of PGAL are used to regenerate the six molecules of RuBP?
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1
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The light reaction, photophosphorylation ______.
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produces both ATP and NADPH
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______ is a c3 plant because it fixes carbon to RuBP.
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Corn
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The C4 pathway involves fixing carbon first to _____ and then to ____.
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PEPA/RuBP
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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.
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C-4
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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.
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oxaloacetic/malate, PGA
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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.
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True
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Most of the carbon dioxide released into the air is consumed by _____, which also produce most of our oxygen.
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algae in the ocean
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Stomata on leaves open and close in relation to _____ conditions while the _____ functions to stop ____ loss.
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water/waxy coating on leaves/water
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T/F: As the days get longer in the fall, photosynthesis speeds up to make more glucose for winter.
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False
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The leaves of many trees turn different colors in the fall because _______.
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cooler temperatures slow down production of cholorphyll
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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.
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False
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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?
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12/3
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The excess glucose made by photosynthesis is usually converted to ______.
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starch and sucrose
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______ plants have their stomata open at night and closed by day.
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CAM plants
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Glycolysis occurs _______.
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in the cytoplasm
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The end product of glycolysis is ______ whereas the first produced in the Krebs Cycle is _____.
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pyruvate/citrate
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How many ATP molecules (net yield) are produced per molecule of glucose degraded during glycolysis without oxygen ____ and aerobic respiration _____?
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2, 38
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Aerobes use _____ as the final electron acceptor in electron transport phosphorylation, whereas anaerobes use ______ as the final electron acceptor.
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oxygen/pyruvic acid
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Under anaerobic conditions muscle cells produce _____, while yeast cells produce ______.
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lactic acid/ethyl alcohol
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Sour cream, sour milk & yogurt are produced by bacteria that form ______.
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lactic acid or acetic acid
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The actual site of greatest number of ATP molecules produced occurs in _____.
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electron transport phosphorylation
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_______ is capable of being reduced during both glycolysis and the Krebs cycle, and which is reduced only in Krebs cycle.
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NAD+ & FAD+
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T/F: The importance of glycolysis and Krebs cycle is in producing chemical energy for cells to do cell work.
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True
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