Exam 3 Review History for Exam 3 Review Quiz Item Exam 3 Review Quiz Score 90 Calculated Due Thursday November 06 2014 7 59 AM Wednesday November 05 2014 6 46 PM Submitte d Answers 1 Why are sensory organs such as eyes located on the surface of the body Their location is an artifact of development these structures are derived from mesoderm Their location is an artifact of development these structures are derived from endoderm Their location is adaptive it allows sensory organs to receive input from the central nervous system None of the answer options is correct there is a better explanation that is not listed Their location is adaptive it allows sensory organs to receive input from the environment 2 True or false All multicellular organisms have a nervous system Score 1 of 1 false true Score 1 of 1 3 True or false Brains are required for movement true false Score 1 of 1 4 An important function of myelin is to increase the size of the synaptic cleft None of the choices is correct increase the speed of nerve signal transmission along the axon decrease the speed of nerve signal transmission along the axon decrease the size of the synaptic cleft 5 Which excitatory neurotransmitter is responsible for muscle contraction in vertebrates Score 1 of 1 dopamine nitrous oxide norepinephrine acetylcholine glutamate Score 1 of 1 6 Which of the following statements are true about resting membrane potential Select all correct choices Score 1 of 1 It results from K ions moving out of the cell through passive diffusion It results from voltage gated sodium channels remaining open for long periods of time It results from the sodium potassium pump moving more Na ions out of the cell compared to the number of K ions moved into the cell 7 Which of the following is not associated with salutatory propagation variable concentration of voltage gated Na and K channels along the axon nodes of Ranvier faster signal transmission myelation extremely low threshold potential Score 1 of 1 8 What types of synaptic inputs can postsynaptic nerve cells receive both inhibitory excitatory neither Score 1 of 1 9 Refer to Figure 35 9 to answer the question below True or false The changes in voltage seen at 2 and 4 in the figure are caused by movement of the same types of ions across the membranes true false Score 1 of 1 brain The response is less intense The response is faster The response is slower 10 What is the adaptive benefit that explains why some simple reflex circuits bypass the The response is more intense None of the choices is correct there is a better explanation that is not listed 11 Which of the following is the chemical substance that allows the transmission of an impulse from a sensory neuron across a synapse to another neuron 12 The basilar membrane has varying flexibility Activation of different regions of the basilar membrane enable perception of sounds of different Score 1 of 1 receptor sodium neurotransmitter hormone Score 1 of 1 loudness pitch intensity amplitude Score 1 of 1 13 Walking along a beach you find a section of an adult grey whale s vertebral column with three vertebra You saw the body of one of the vertebrae in half You see a hard outer layer of forming the wall and a network of with in the center blood vessels spongy bone compact bone collagen hydroxyapitite osteoblasts collagen osteocytes blood vessels compact bone spongy bone trabeculae spongy bone compact bone trabeculae Score 1 of 1 14 The sliding filament model of muscle contraction explains that tropomyosin must be removed from the actin molecule before it can bind to myosin the sarcomere stretches to create contraction actin filaments slide past myosin causing the shortening of the muscle fiber muscle contraction requires energy in the form of GTP 15 Which of the following is the portion of the vertebrate skeleton that includes the skull vertebrae and ribs Score 1 of 1 the appendicular skeleton the axial skeleton the trunk the central skeleton Score 1 of 1 16 Recall that a small amount of releasing factor from the hypothalamus can cause the adrenal cortex to secrete a greater amount of cortisol The action of cortisol in turn can result in a high final concentration of glycogen in the liver What is this an example of Select all correct choices hormone signal amplification hormone signal denaturation hormone signal accumulation hormone signal degradation Score 0 of 1 17 If you were to remove the prothoracic glands from the insect larva what would you expect the results to be The larva would pupate then emerge as a normal adult never molt again molt into a larger larva Score 1 of 1 18 A patient with a thyroid tumor has her thyroid gland removed Without a thyroid gland and without synthroid a thyroid hormone replacement drug which of the following is most likely to occur Her blood TSH levels will be abnormally high and her metabolic rate will be high Her blood TSH levels will be abnormally low and her metabolic rate will be high Her blood TSH levels will be abnormally high but metabolic rate will be low Her blood TSH thyroid stimulating hormone levels will be abnormally high and her energy level will be low Her blood TSH levels will be abnormally low and her energy level will be low Score 1 of 1 19 In humans fertilization usually occurs in the uterus in the vagina in the ovaries in the fallopian tubes in the cervix Score 0 of 1 20 When a species produces gametes of different sizes select all correct choices the smaller are designated as male and are called sperm or spermatozoa the larger are designated as male and are called sperm or spermatozoa None of these choices are correct the smaller are designated as female and are called eggs or ova the larger are designated as female and are called eggs or ova Score 1 of 1 Close History for Exam 3 Review Quiz Item Exam 3 Review Quiz Score 90 Calculated Due Thursday November 06 2014 8 59 AM Wednesday November 05 2014 8 22 PM Submitte d Answers tongue teeth cephalization jaws Score 1 of 1 1 Which of the following is thought to be adaptive predatory behavior Select all correct choices 2 Neurons tend to differ in their select all correct choices 3 Which excitatory neurotransmitter is responsible for muscle contraction in size and shape number of extensions function Score 1 of 1 vertebrates acetylcholine glutamate dopamine nitrous oxide norepinephrine Score 1 of 1 false true Score 0 of 1 5 Ca ion channels are found 4 True or false The magnitude of the action potential is correlated with the
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