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(4 points) Many dietary supplements contain digestive enzymes that the to help people digest food more efficiently. A) What will happen to these enzymes in the stomach? (Hint: Enzymes are proteins) B) Will the enzymes continue to function once they have reached the lumen of the 9. small intestine? Why or why not? Please elaborate your answers. Solution A) many dietary supplements contain primary digestive enzymes like protease to digest protein,lipase enzyme to digest fat,amylase to...

7. You have isolated a protein (Boo) that binds to DNA in the region upstream of the promoter sequence of the Sys gene. If this protein is a positive regulator, which of the following could be true? a) Loss-of-function mutation in the gene encoding Boo would cause constitutive expression of Sys. b) Loss-of-function mutation in the gene encoding Boo would result in little or no expression of Sys. Solution As the protein induces gene expression, then it means it's expression will re...

30mV Ventricular Sinoatrial node Atrial 5 Omv Phase 4 Na CaT Cal to,s Kur Ks Kr K1 KATP KACh NCX Solution Answer is sse in HR. Activation of beta 1 receptors leads to increase in contractile force and there by heart rate increases . Ventricles are stronger and thicker than atria and the muscle wall surrounding the left ventricle is thicker than right ventricle due to high force needed to pump the blood through systemic circulation.

A 1.40 kg object is held 1.15 m above a relaxed, massless vertical spring with a force constant of 300 N/m. The object is dropped onto the spring. How far does the object compress the spring? m Repeat part (a), but now assume that a constant air-resistance force of 0.600 N acts on the object during its motion. m How far does the object compress the spring if the same experiment is performed on the moon, where g = 1.63 m/s2 and air resistance is neglected? m Solution ...

5. What role do eukaryotes play ecologically? Solution Eukaryotes play important ecological roles on a global scale. They are responsible for global carbon fixation and marine primary productivity. They are providers for changing climate processes and form a substantial basis of the marine food web. They have cell walls, which are made of silica and the largest class of silicifying organisms on the planet at cellular level. They are also contributors to biogeochemical processes. They...

5. A cell biologist has developed a new drug that will block the cis face (find out what this means!) of the Golgi apparatus. If eventually approved by the FDA, she wantsto use this new drug to aid cancer patients. What specifically will this drug prevent from happening inside a cancer cell? 6. The pH of black coffee is about 5. The hydrogen ion concentration of beer is about one hundred times greater than that of coffee. What is the pH of beer? Solution The proteins and other compon...

28-30. Explain what is happening to these plant and animal cells that are placed in three different concentrations of aqueous solutions. Which situation is optimal for plant cells? Why? Solution In all these cases,osmosis is happening.Fig 1, fig 2, and fig 3 are having hypotonic, isotonic and hypertonic solutions respectively. Case 1: (i) Animal Cell - The figure shows that animal cell burst. This happens due to the fact that concentration of solute is lesser outside the cell and hi...

A company hires a file clerk but does not inquire into his criminal history. In fact, he has had several convictions for driving while intoxicated. On a lunch break, he gets drunk and assaults a waitress at a nearby restaurant. If the waitress sues the employer, a court would most likely decide that? Solution

REQUIREMENT #1:During its first month of operation, the Parkview Landscaping Corporation, which specializes in residential landscaping,completed the following transactions:July 1Began business by making a deposit in a company bank account of $24,000, in exchangefor 4,800 shares of $5 par value common stock.July 1Paid the premium on a one- year insurance policy, $2,400.July 1Paid the current month's rent, $2,080.July 3Purchased landscaping equipment from Brookwood Company, $8,800.P...

Here is a situation for Don and Joan who are partners for a vending cart business, which sells hotdogs on the street. Joan and Don received a mailed notice from the City of Richmond informing them that, due to a new City Ordinance brought about because of excessive traffic flow, licensed street vendors would no longer be able to set up in the immediate downtown area of Richmond. The city passed the ordinance at the last city council meeting without prior notice of any kind. Vendors could on...