Biology question and answers for May 09, 2024
- Q Which of the following statements is correct in describing the terms monohybrid cross and dihybrid cross A dihybrid cross involves organisms that are heterozygous for two characters that are being...
- Q Listen soint a depolarization Browser We What causes the the membrane to return to resting potential after an action potential has occurred the voltage gated Na channels cannot re open...
- Q Why are males more often affected by sex linked traits than females Female hormones such as estrogen often compensate for the effects of mutations on the X chromosome Males are...
- Q protect blood vessels and enclose venous sinuses cover and protect the PNS cover and protect the CNS form partitions in the skull Question 22 2 points 1 Listen Select ALL...
- Q 100 Swelling of the brain A temporary disruption of neurological function Bruising of the brain Question 24 2 points Listen line the ventricles of the brain Neurons Astrocytes Epithelial cells...
- Q 4 Listen 1 point Neurotransmitters are released from axon terminals via endocytosis osmosis passive transport diffusion s cells erials between blood and body cells exocytosis
- Q ten What is the main function of the salty interior of the kidney to attract regulatory hormones to the kidney to aid with water reabsorption in the kidney to help...
- Q any blood pressure medications block the reabsorption of water in the collecting ducts How would this affect urine output and concentration
- Q uman red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb To travel from the artery in...
- Q sten Which of the following statements is are true Select all that apply osmosis is a form of diffusion if there is no concentration gradient a substance will not diffuse...
- Q hypothalamus loss of body temperature control dehydration loss of fine motor control sleep disturbances Question 30 2 points Listen as a result of an injury to the Damage to the...
- Q In mammals most gas exchange between the atmosphere and the pulmonary blood occurs in the Olarynx bronchioles trachea alveoli bronchi
- Q 5 18 21 When you exhale the diaphragm contracts and arches contracts and arches but only when you are exercising vigorously relaxes and arches relaxes and flattens contracts and flattens
- Q In summation a neuron will fire an action potential when more ESPSS come in than IPSPS only ESPSS come in and not IPSPS ESPSS come in in rapid succession IPSPS...
- Q isten acetylcholine endorphins glutamate The botulinum toxin prevents the release of which of the following neurotransmitters serotonin resting potential dopamine locations
- Q Listen When voltage gated K channels open tion potential K rushes into the cell and causes a hyperpolarization K rushes into the cell and causes a depolarization K rushes out...
- Q Listen Which of the following is NOT a factor in the movement of water into tissues diffusion active transport osmotic gradient fluid pressure pillaries salinity gradient
- Q 21 What membrane potential triggers the opening of the voltage gated Na channels 55 mv 55 mv 70 mv 70 mv O 90 mv 90 mv
- Q 1 toxin that binds specifically to voltage gated sodium channels in axons would be expected to increase the release of neurotransmitter molecules prevent the depolarization phase of the action potential...
- Q 21 Voltage gated channels in a cell s membrane open in response to a change in membrane potential move substances against their concentration gradients are always open and allow for...
- Q 8 Listen Opiates like morphine and heroin bind to the same receptors as acetylcholine endorphins glutamate serotonin dopamine
- Q The main role of a neurotransmitter is to create a depolarization in the membrane and generate an action potential cause a post synaptic potential to occur carry ions across the...
- Q Listen The point of connection between two communicating neurons is called the dendrite the glia eaches 55 mv the axon hillock the cell body the synanin
- Q Listen oint acetylcholine GABA Which of the following is the most common neurotransmitter in the vertebrate CNS glutamate serotonin terminals dopamine ser W
- Q Listen point Interstitial fluid ute gradients Ois the fluid inside the gastrovascular cavity of Hydra is composed of blood is the internal environment found inside an animal s cells provides...
- Q who could see an apple but could not interpret it as an apple is most likely to have sustained damage to the calcarine cortex visual association area lateral geniculate body...
- Q Whichof the following describes the route of urine out of the body after it leaves the kidney urethra bladder ureter renal vein ureter bladder urethra renal vein bladder urethra ureter...
- Q Which of the following structures are considered part of the nephron Select all that apply The ureter The distal tubule Browser W the proximal tubule the collecting duct the loop...
- Q During filtration which of the following does NOT enter the Bowman s capsule from the bloodstream Oions water amino acids glucose Wel plasma proteing
- Q Match the area of the brain with its function 0000 thalamus cerebellum medulla oblongata cerebral cortex 1 2 3 4 fine tunes motor activity to provide precise coordinated movements autonomic...
- Q act through intracellular second messengers Oopens ion channels alters membrane potential resulting in rapid and brief responses O cause effects on the presynaptic neuron Question 40 2 points 1 Listen...
- Q gamma aminobutyric acid acetylcholine cholinesterase norepinephrine Question 38 2 points 4 Listen An excitatory neurotransmitter would likely result in which of the following in the postsynaptic cell O Chemically gated...
- Q At Resting Membrane Potential just inside the neuron s plasma membrane will be negative and contain more sodium than outside of the cell positive and contain more sodium than outside...
- Q Nerve fibers from the send signals to the brain about internal or external changes i e noises heard smells tastes etc O sympathetic division of the ANS O parasympathetic division...
- Q Select ALL of the following that are true regarding graded potentials They usually occur in axons They are short lived localized changes in the membrane potential Either depolarization or hyperpolarization...
- Q into the cranial nerves spinal cord midbrain telencephalon Question 36 2 points 1 Listen of the heural tube develops are a classification of neurotransmitters that are all widely used in...
- Q Movement of molecules and organelles occurs in both directions anterograde and retrograde They generate graded potentials They generate nerve impulses They have many rough ER and Golgi apparatus organelles as...
- Q decreased oxygen use especially in the cerebral cortex decreased vital signs such as heart rate and blood pressure decreased activity of the brain especially the cerebral cortex temporary skeletal muscle...
- Q 4 Listen Select ALL of the following that are true regarding action potentials They occur in axons Either depolarization or hyperpolarization can occur They are brief long distance siis Unlike...
- Q Hg that are functions of astrocytes support and brace neurons control the chemical environment around neurons provide the defense for the CNS help determine capillary permeability Question 28 2 points...
- Q Consciousness involves which of the following Select ALL that appl Having higher mental processing such as memory and logic Being able to perceive sensations Being able to voluntarily initiate and...
- Q and a contusion A concussion is more severe than a contusion A contusion is widespread brain trauma that causes a temporary disruption in brain function and is typically mild whereas...
- Q garding chemical synapses A neurotransmitter is released from the axon terminal of the presynaptic neuron and received on the receptor region of the postsynaptic neuron The release of neurotransmitter molecules...
- Q the internal capsule substantia nigra red nucleus reticular formation of the dopamine releasing neurons of Question 18 2 points 4Listen Select ALL of the following that are true regarding strokes...
- Q moves membrane potential away is short distance depolarization is short distance hyperpolarization opens K or Cl channels Question 9 2 points 4Listen Neurons are functionally connected by transfer between them...
- Q Select ALL of the following that are true regarding They are more common than chemical synapses The neurons are joined by gap junctions They result in only unidirectional communication between...
- Q Suppose than an individual has taken a huge dose of dinitrophenol DNP an uncoupler of oxidative phosphorylation Below are possible avenues of ATP production from metabolism For each one choose...
- Q Does the citric acid cycle increase to the concentration of oxaloacetate in the cell Explain your reasoning How is oxaloacetate replenished and under what cellular conditions high low energy charge...
- Q Insulin plays an essential role in regulating metabolism Insulin is released after a meal has been eaten It binds to its receptor on the surface of cells triggering a signal...
- Q Which of the following conditions inhibit the activity of the PDH complex a Selected answer will be automatically saved For keyboard navigation press up down arrow keys to select an...
- Q Order the steps that lead to a change in the rate of the gluconeogenesis pathway Dragged and dropped options will be automatically saved For keyboard navigation SHOW MORE E PFK2...
- Q If a mutation occurred in which hexokinase lost its allosteric site for glucose 6 phosphate what would be the effect of this mutation on the pace of glycolysis in liver...
- Q During graduate school I identified a mutation in a gene in fruit flies we named the gene sugar free frosting that encodes an enzyme called SAD kinase What type of...
- Q What is the function of a thioester intermediate such as the one formed from Glyceraldehyde 3 phosphate Selected answer will be automatically saved For keyboard navigation press up down arrow...
- Q Which of the following correctly describes a strong oxidizing agent Selected answer will be automatically saved For keyboard navigation press up down arrow keys to select an answer a b...
- Q Which molecule is transported out of the mitochondria after the first step of gluconeogenesis Selected answer will be automatically saved For keyboard navigation press up down arrow keys to select...
- Q Listen What do think a bird beak that is delicate thin and long would be best at eating other large animals seeds fruits insects Question 5 1 point Listen Bird...
- Q Question 5 1 point Listen Bird beaks can be small medium or large How do think the weight of a beak compares to a jaw with teeth of similar size...
- Q What do you think a bird beak with a sharp hook at the end would be good for eating other animals fruits insects seeds Question 2 1 point Listen What...
- Q Listen What do think the functions of a birds beak would be Opicking up food Opreening its feathers carrying nesting material acting as a defensive weapon it could be all...
- Q Name two systems that interact with the circulatory system and expand on the way they interact
- Q Inside a Healthy Heart Heart Right Atrium Aorta Right Ventricle Left Atrium Septum Left Ventricle Valve Blood KidsHealth All rights reserved You have learned about the system shown below List...
- Q In sports that require high endurance the illegal practice of blood doping involves removing some blood cells from an athlete about two weeks before competition and storing them Just before...
- Q Dr Owen meets a female patient who is feeling weak and has a fever She runs a blood test and notices that she has a high white blood cell count...
- Q Current Attempt in Progr In the diagram shown below which cellular junction will prevent acidic stomach fluid from seeping into the connective tissue OA OB OC DE AL BO
- Q Question 11 A A B A D B C A C E D E
- Q Match each body function with the tissue type associated with that function Answer choice can be used more than once Muscle tissue Connective tissue Epithelial tissue Nervous tissue 1 2...
- Q In the diagram what would happen to the concentration of A O increases O decreases O no change H O B C
- Q The body cavity of this female frog is filled with eggs They appear as dark or speckled structures You can also see the curly oviducts to the side of the...
- Q To view internal structures the frog is cut from the lower stomach and up toward the jaw The sides of the frog are pinned back to reveal the organs The...
- Q Lying above the liver is the heart shown in yellow box which is a pink triangular structure The bottom area is the single ventricle and the top part consists of...
- Q On this image the liver has been removed to show the spongy lungs that lie close to the heart Blood travels to the heart then to the lungs and then...
- Q In this image the stomach has been removed to show the folds on the inside called rugae Rugae allow for the expansion of the stomach for digestion The layer of...
- Q ground Layout Theme Transition The small intestine is coiled in the body cavity and held together by a thin membrane called the mesentery This membrane contains tiny blood vessels that...
- Q Use tweezers to lift the right lobe of the liver and reveal the sac like gallbladder that lies underneath it One of the many jobs of the liver is to...
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