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30 Cards in this Set
- Front
- Back
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Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
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ATP and NADPH
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Where does the Calvin cycle take place?
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Stroma and Chloroplast
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In autotrophic bacteria, where are the enzymes located that can carry on organic synthesis?
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Along the inner surface of the plasma membrane
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Which of the events listed below occur in the light reaction of photosynthesis?
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Light is absorbed and funneled to reaction-center chlorophyll a
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In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from...
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The stroma to the photosystem II
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Which of the following is true of ligand gated ion channels?
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They are important in the nervous system / they lead to changes in sodium and calcium concentrations in cells / They open or close in response to a chemical signal
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Membrane receptors that attach phosphates to specific amino acids in proteins are...
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Enzyme linked receptors
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Intracellular chemical signal pathways...
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Often involve the binding of signal molecules to a protein on the surface of a target cell
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From the perspective of the cell receiving the message, the three stages for cell signaling are...
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Reception / Transduction / Response
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An inhibitor of which of the following could be used to block the release of calcium from the endoplasmic reticulum
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Tyrosine Kinases
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Which of the following statements is true concerning the figure?
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It represents cell processes involved in C4 photosynthesis
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Which of the following statements is true?
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Protein kinase A activation is one possible result of signal molecules binding to G protein linked receptors
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The Termination phase of cell signaling requires which of the following?
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Reversing the binding of signal molecule to the receptor
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If there are 20 chromatids in a cell, how many centromeres are there?
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10
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Which term describes centrioles beginning to move apart in animal cells?
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Prophase
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Which term descries centromeres uncoupling, sister chromatids separating, and the two new chromosomes moving to opposite poles of the cell?
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Anaphase
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Where do the microtubules of the spindle originate during mitosis in both plant and animal cells?
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Centrosome
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Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants?
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A cell plate begins to form at Telophase, whereas in animals a cleavage furrow is initiated at that stage
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Which of the following is a protein synthesized at specific times during the cell cycle that associates with a kinase to form a catalytically active complex?
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Cyclin
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Karyotype
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Display of every pair of homologous chromosomes within a cell, organized according to size and shape
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How do cells at the completion of meiosis compare with cells that have replicated their DNA and are just about to begin meiosis?
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They have half the number of chromosomes and one fourth the amount of DNA
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Which of the following occurs in meiosis buy not in mitosis?
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Synapsis of chromosomes
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Chiasmata are what we see under a microscope that let us know which of the following is occurring?
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Crossing Over
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________ signaling involves secreting cells acting on nearby target cells by discharing a local regulator into the extracellular fluid
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Paracin
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A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 8 picograms of DNA per nucleus. Those cells would have _________ pictograms at the end of the S phase and ________ pictograms at the end of G2.
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16
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If mammalian cells receive a go-ahead signal at the G1 checkpoint they will...
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Goes on to complete S and G2 phases
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Cells that are in a non dividing state are in...
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G - Zero
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DNA is replicated at this time of the cell cycle...
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S Phase
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A gene’s position along a chromosome is known as the...
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Locus
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In animals, meiosis results in gametes, and fertilization results in...
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Zygotes
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