Biology Questions

How many organ systems are in the human body Respiratory system 5 8 11 Urinary system Digestivo system 04 Reproductive systemn Lymphatic systern Endocrino system Integumentary systorn Circulatory system Skeletal system Nervous system Muscular system

A mother has Rh blood and the father is Rh The first born baby to these parents was Rh However the parents elect for the mother to NOT receive Rhogam Are ALL future babies isk Why For the toolbar press ALT F10 PC or ALT FN F10 Mac Y 6

Sex hormones including androgens estrogens and progesterone are produced by the gonads in males and females and control the development of primary sex characteristics the stru directly involved in reproduction The sex hormones also trigger the development of secondary sex characteristics the physical and behavioral characteristics that appear during puberty that are not directly related to reproduction Because the principal sex hormones differ in males and females different secondary sex characteristics develop Sort the following secondary sex characteristics and hormones based on whether they are related to androgens estrogens and progesterone or neither Drag each phrase to the appropriate bin View Available Hint s increased aggressiveness androgens breast development deepening of voice testosterone increased water retention changes in calcium metabolism estrogens and progesterone estradiol fat deposition in hips increased muscle mass neither Reset Help development of facial hair

More Positive Submit Double the concentration of K outside the cell Double the number of K leak channels Previous Answers More Negative Double the number of closed channels for K Double the size of the cell without adding channels Largely Unchanged Triple the number of Nat leak channels Decrease the concentration of Na outside the cell by half

1 Define the term threshold as it applies to an action potential

4 Upon examining a sample consisting of 100 cells you find the following distribution of cell phases If you know that the cell cycle for this type of cell takes two hours how long on average does the cell spend in prophase Cell Phase Interphase Prophase Metaphase Anaphase Telophase O 8 minutes O 16 minutes 22 minutes O 30 minutes Number of Cells 54 25 8 Cutekinocin 7 6 5 In what part of the cell cycle does the DNA make a copy of itself O Interphase Prophase Telophase

2 During which phase does the cell actually separate into two individual daughter cells O Prophase O Cytokinesis O Interphase O Metaphase 3 If your were to examine a sample of 1000 cells in which of the phases listed below would you expect to find most of the cells Interphase O Metaphase O Anaphase O Telophase

G1 Test Practice Fr Arduino project G 1 Place the four images from the cell cycle in the correct chronological order A XXX C B D JELV O Image A image D image B image C Image C image D image B image A O Image C image B image A image D O Image B image C image D image A 2 During which phase does the cell actually separate into two individual daughter

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2008 Pearson Education Inc The graph below shows the membrane potential measured at the axon hillock of the postsynaptic neuron Each target indicates a change in the membrane potential at the axon hillock caused by a postsynaptic potential at one of the four synapses Summation occurs when two or more postsynaptic potentials overlap in time that is one postsynaptic potential begins before the membrane has returned to resting potential after a previous postsynaptic potential When such overlap occurs the membrane potential measured at the axon hillock is the sum of the two or more overlapping postsynaptic potentials Drag the labels onto the graph to indicate which presynaptic neuron produced each change in the axon hillock s membrane potential Assume that the same number of ligand gated ion channels opens at each synapse To review the effect of distance between the synapse and the axon hillock see Hint 2 Labels can be used once more than once or not at all View Available Hint s 1 membrane potential mv 0 action potential threshold at the axon hillock Reset Help

The diagram below shows the five main transport proteins that control the distribution of Na and K ions across the plasma membrane of an axon Assume that the membrane is at resting potential the membrane potential of the axon remains constant at about 70 mV ng potential Drag the arrows onto the diagram to show the direction of Na gray arrows and K red arrows movement through each transport protein at resting potential If no ions move through a transport protein at resting potential leave that target blank View Available Hint s outside cell voltage gated Na channel 28646911 Na K Na K Na Na K Na K b voltage gated K channel sodium potassium pump Compte Na K K d non gated K channel Reset Help non gated Na channel

Part A Types of postsynaptic potentials The binding of neurotransmitter to ligand gated ion channels in the postsynaptic membrane causes these channels to open As soon as the neurotransmitter is removed from the synaptic cleft the ligand gated ion channels close In the brief time these channels are open ions are able to diffuse across the postsynaptic membrane down their electrochemical gradient The result is a postsynaptic potential a brief change in the membrane potential of the dendrites and cell body of the postsynaptic cell There are two types of postsynaptic potentials excitatory postsynaptic potentials EPSPs and inhibitory postsynaptic potentials IPSPS An EPSP is excitatory because it makes it more likely that the axon of the postsynapti cell will trigger an action potential Conversely an IPSP is inhibitory because it makes it less likely that the axon of the postsynaptic cell will trigger an action potential Sort the phrases into the appropriate bins depending on which type of postsynaptic potential they describe If a phrase describes both types of potentials drag it to the both bin View Available Hint s hyperpolatzes the postsynaptic membrane depolarizes the postsynaptic membrane brings the postsynaptic membrane potential closer to threshold excitatory postsynaptic potential EPSP moves the postsynaptic membrane potential farther away from threshold sa graded potential results from the movement of im K ions out of the postsynaptic cel inhibitory postsynaptic potential IPSP results from the movement of m Na ions into the postsynaptic cell Reset Help both

Hormones control the two closely linked reproductive cycles in human females the uterine or menstrual cycle and the ovarian cycle During one uterine cycle which is approximately 28 days long the lining of the uterus undergoes hormonally regulated changes if no pregnancy has occurred At the same time the hormones also cause a series of changes to take place in an ovary known as the ovarian cycle The flowchart below describes the events of the ovarian cycle Drag the names of the hormones to their appropriate locations on the flowchart starting with the release of a hormone from the hypothalamus Labels may be used once more than once or not at all GnRH gonadotropin releasing hormone LH luteinizing hormone FSH follicle stimulating hormone View Available Hint s estradiol and progesterone GHRH crytoom LH and PSH ending inhibition of the i hypothalamus and pituitary and allowing secretion of causing a decline in corpus luteum disintegrates hypothalamus secretes stimulates the pituitery to secrete luteal phase causes the pituitary to inhibir production of which stimulates follicle growth and secretion of follicular phase ovulation corpus luteum secretes which at high levels causes the pituitary to increase production of d Faticle maturation and ovulation Reset Help

How does the fall relate to tragedies like 9 11 2004 carquabe people disasters such as the Tsunami of Caused a tsunami that killed over 225 000 and the CovID 19 pandemic in 2020 Based on the topic Resources how would you explain how good loving and all powerfull God allows Suffering and evil in his creation Explain how your reaction to evil events has caused you to reassess your worldview an

URINALYSIS For each of the urine samples tested use the ChemiStrip results key to identify any abnormalities or interesting observations of the sample and complete the chart below With the exception of pH and specific gravity SG normal readings are on the left side of the key and findings become more abnormal as one moves to the right Urine sample Sample A Clear pale yellow ChemiStrip Sample Results LEU NIT URO PRO pH BLO SG ChemiStrip Urinalysis Results Key TESTS AND READING TIME LEUKOCYTES SATIVE 2 minutes NITRITE 60 seconds UPOBILINOGEN U 60 seconds PROTEIN 60 seconds pil 60 seconds BLOOD 60 seconds REGATIVE SPECIFIC GRAVITY REGATIVE TRACE 5 0 NORMAL REGATIVE 1 000 TRACE L UNDE 1 mg app 6 5 HEXIGLYZED MODERATE 1310 1 8 HEMOLYZED 1015 SMALL 23 SMALL 1 829 MODERATE POSITYS 12 MODERATE 1 325 2000 N 1310 Interpretation of Results Observations and Abnormal Findings

3 Explain why late pregnancy often results in the types of air volumes that are noted in the scenario above Individual A

What structure is labeled as 7 Z disc Muscle fiber Actin Mitochondria Titin M line T tubule Epimysium 11 Myosin Fascicle Sarcoplasmic reticulum Myofibril Perimysium 8 12 305 15 15 ES ENVEL BEVES 10 3 13 29 PAR 9 5 14

Listen What type of synovial joint is labeled as 2 and what is its range of motion 1 3 2 4

17 Mucosal immunity review figures of small and large intestine respiratory tract What cell types are found there What is their function Why is gut tolerance homeostasis important intering is larger more diverse Microbion

16 Describe the 6 antibody mediated effector functions that were discussed

What do carbohydrates NOT contain a Carbon b Hydrogen c Oxygen Jhy

Make a two column folded chart Label the front Types of Microscopes and lab the inside as shown Use it to organize your notes about microscopes

13 Can unprocessed antigen also make its way to lymph node B cells

Fermentation Worksheet Type in the blanks and submit this worksheet through the assignment tab in iCollege Delete the words Insert Picture Here before inserting each picture Sugar Source I Chose Was Insert a picture of your warm water fermentation vials below Remember to include a name card

9 What makes an individual more susceptible to Type I

Insert a picture of your refrigerated fermentation vials below Remember to include a name card

Applying What You ve Learned 1 Cystic Fibrosis is a genetic condition that affects the way your body makes mucus Patients with this condition have airways that become inflamed The tubular walls thicken and the tubes fill with thick phlegm This results in difficulty moving air through the tubing and has the patient coughing quite a bit Based on this information gathered above identify the individual who likely has cystic fibrosis Explain how the information and results of the spirometry testing support this decision

An individual develops a mutation that leads to pigment loss The individual later has offspring with another individual Which sentence describes the mutation OA If it occurred in a gamete it can be passed to the offspring B If it occurred in a somatic cell it can be passed to the offspring C If it occurred in only one parent s gamete the offspring cannot inherit it D If it occurred in all of the individual s gametes it won t occur in the offspring

Which of the following structures are part of the digestive tube allimentary canal through which food moves Select all that apply esophagus stomach liver large intestine pancreas Question 26 3 points

point 4 Listen As body size increases in animals ng in the digestive tract reproduction becomes limited to terrestrial environments it becomes easier to conserve body warmth in cold environments migration to tropical areas becomes necessary for thermoregulation there is greater variability in metabolic rate there is an increase in the surface area to volume ratin

Pepsin is a digestive enzyme that begins the hydrolysis of proteins in the stomach is denatured and rendered inactive in solutions with low pH helps stabilize fat water emulsions is manufactured by the pancreas splits maltose into monosaccharides

The mammalian trachea and esophagus both connect to the rectum large intestine stomach pharynx small intestine

An advantage of a complete tube digestive system over a gastrovascular cavity is that the complete system allows digestive enzymes to be more specific excludes the need for extracellular digestion allows extensive branching facilitates intracellular digestion allows specialized functions in specialized ronion

pint warmth in cold environments 4 Listen In the legs of Canada geese counter current exchange is occurring Which two substances are moving opposite one another blood in veins and blood in arteries blood in arteries and oxygen heat in veins and heat in arteries blood in arteries and blood in capillaries blood in veins and interstitial fluid

Salivary amylase digests starches protein maltose monosaccharides glucose

absorption of fats differs from that of carbohydrates in that the wser Webcam fat absorption occurs in the stomach whereas carbohydrates are absorbed from the small intestine fats but not carbohydrates are digested by bacteria before absorption processing of fats does not require any digestive enzymes whereas the processing of carbohydrates does carbohydrates need to be emulsified before they can be digested whereas fats do not most absorbed fat first enters the lymphatic system whereas carbohydrates directly enter the blood

Individual C 35 year old male patient was gasping for breath at times during the procedure Vital capacity Tidal volume Inspiratory reserve Calculate the oxpiratory reserva 3500 300 2400 Lower hower hower

When the digestion and absorption of organic molecules results in more energy rich molecules than are immediately required by an animal the excess is eliminated in the feces oxidized and converted to ATP stored as starch in the liver stored as glycogen in the liver and muscles hydrolyzed and converted to ADP

How do the microvilli on the absorptive epithelia of the small intestine enhance nutrient absorption they have a large amount of surface area that is in contact with digested food they contain thick and thin filaments to help absorb molecules they help protect the intestinal lining from abrasion they pump wastes into the lumen while pumping nutrients toward the blood they move back and forth to keep food moving in the digestive tract

ter surgical removal of an infected gallbladder a person must be especially careful to restrict dietary intake of fat sugar water protein starch

Individual F 18 year old male patient who suffered a knife wound in the right thorax Tidal volume Expiratory reserve Inspiratory reserve Calculate the vital capacity 300 700 1900 Lower Lower hower

Certain nutrients are considered essential in the diets of some animals because the nutrients are subunits of important polymers only those animals use those nutrients the nutrients are necessary coenzymes these animals are not able to synthesize these nutrients only certain foods contain them

Listen Which of the following organs is incorrectly paired with its function pancreas enzyme production large intestine bile production small intestine nutrient absorption oral cavity starch digestion stomach protein digestion