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1. All of the following can occur during exercise exceptA. Inorganic phosphate levels decreaseB. ATP levels declineC. Oxygen levels decreaseD. Calcium levels decrease2. Determine which unique characteristic of smooth muscle allows your stomach to streatch aas you eat and not contract immediatly to expel food?A. Stress-relaxation responseB. Single Unit contractionC. Slow contractionD. Hyperplasia3. The presynaptic neuron releases neurotransmitters in response to an influx of what ions?A. SodiumB. PotassiumC. CalciumD. Sodium and Potassium4.Prozac used for the treatment of depression exerts its effects by keeping the concentration of serotonin elevated in the synapse. These drugs exert their effects by?A. Inhibiting reuptake of serotonin by presynaptic terminalsB. Inhibiting the enzyme that break down serotoninC. Inhibiting diffusion of serotonin away from the synaptic cleftD. All of the above5. Which of the following is not true regarding graded potentials?A. They generated by voltage-gated channelsB. They decrease in magnitude as they move away from the stimulus pointC. They are excitatory and inhibitoryD. They are typical postsynaptic potentials6. -Blank- occurs when a neuron is stimulated at more than one dendride?A. Temporal summationB. Spatial summationC. Synaptic delayD. Synaptic potentiation7. Which of the following is incorrect regarding G-protein linked receptors?A. Their effects are slow and indirectB.They activate second messengers such as calcium or cAMP to modulate ion channelsC. They are ligand-gated ion channels and their effects are briefD. They include metabotropic glutamate and monoamine receptors8. Which of the following does not bind to calcium to regulate muscle or neural activity?A. TroponinB. CalmodulinC. MyosinD. Synaptotagmin9. Which of the following neuroglia regulates capillary permeability in the blood breain barrier?A. MicrogliaB. Ependymal cellsC. AstrocytesD. Oligodendrocytes10. All of the following statements are true regarding action potentials exept?A. They need a threshold stimulusB. Depolarization refers to a decrease in membrane potentialC. They travel more slowly on unmylinated fibersD. Stronger stimuli generate higher amplitude of action potential
When a pea plant of genotype Aa Bb produces gametes, what proportion would be Ab? (Assume that the two genes are independent)
How do respiration and/or photosynthesis affect homeostasis in a living organism.
When you look around at the world, you can see various examples that show how an object's or a system's structure relates to its function.
A drug 2,4-dinitrophenol can get into mitochondria, and carry portons from the intermembrane space, and into the matrix. Determine the effect of DNP on the ATP synthesis in the presence of oxygen?
Discuss blood types, the factors in crime situations. Determine what is a criminal case where blood samples were important in the case decision and outcome, what was it about the blood in this situation?
Suppose if the two genes below are 36 cM map units apart and an AABB individual and an aabb individual mate
The main ecological imbalance on Earth is between the human species and the rest of Earth's biota. Determine two specific actions we could do to achieve a balance
If you continue adding drops of bromine to each, eventually lipids change color. For our experiment it took 14 for lard, 23 for olive oil, and 35 for corn oil. Yet, the iodine numbers for each were 59, 81, 123 respectively. Would you consider the ..
How could these three cell types be clearly and simply distinguished from each other in an experimental laboratory and how and where do these different cell types differentiate to their mature functional characteristics?
An artificial cell containing 0.5 M glucose is placed in a beaker of 0.5 M NaCl. The membrane around the cell is permeable only to water.
As the US is one of the largest contributors to atmospheric carbon emissions, what specific policies might the US enact to reduce its impact on global climate change?
Based on this value, about what proportion of her own body weight in phytoplankton will a 60 kg woman require eating over the course of a year, if this were her only source of energy.
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