27 Answered Questions for the topic Bio

03/24/22

Calculating Penetrance

For one of my homework questions it states that the penetrance for cancer amongst males is 60% and 10 males in the family inherits the allele for cancer. How many of these 10 men are expected to... more
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05/16/21

The production of filtrate is carefully regulated so the volume remains the same (mls/hour) despite changes in blood pressure and level of hydration.

The production of filtrate is carefully regulated so the volume remains the same (mls/hour) despite changes in blood pressure and level of hydration. How then, does the body regulate the volume of... more
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03/22/21

Describe the three sources of energy to produce ATP for muscles and distinguish between aerobic and anaerobic processes.
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01/26/21

The nervous system is very important in maintaining homeostasis. Explain how it is involved in the negative feedback loop

The nervous system is very important in maintaining homeostasis. Explain how it is involved in the negative feedback loop (think about each component of the negative feedback loop, receptor,... more
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01/26/21

List the structures that help to change the characteristic of inspired air before it reaches the lungs.
please i don't understand this question
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01/25/21

Name the main body compartments of the human body and list organs in the different compartments

please i need help with this question
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01/25/21

Describe the functional effects of the sympathetic nervous system,
Please i need help with this question i don't understand this question. it's urgent
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01/20/21

Pathophysiology Cancer Clinical Scenario Question

A 48-year-old man presents at his health care clinic with complaints of leg weakness. He is a heavy smoker and has had a productive cough for years. Subsequent diagnostic tests reveal he has a... more
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Bio Biology

10/10/19

As you go above and below the optimum pH and temperature the enzyme activity drops off.

Discuss the reason behind this phenomenon
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04/14/19

Why is ATP an important molecule in metabolism?
a. Its terminal phosphate group contains a strong covalent bond that does not contain much chemical energy b. Its hydrolysis provides an input of free energy for exergonic reactionsc. It provides... more
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04/14/19

The major function of fermentation in our muscle cells is
A. to reduce NAD+ to NADHb. to generate lactic acid, which is later converted into fatty acid, which is a form of stored chemical energyc. not really known, and in fact it is believed fermentation... more
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04/14/19

What process below would speed up a reaction by lowering the activation energy?
A. Adding heatB. Adding a catalystC. Increasing the amounts of reactantsD. Increasing the entropyE. All of the above would speed up a reaction by lowering the activation energy
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04/10/19

A codon is a group of three bases that specifies a particular amino acid. Which of the following enzymes can ‘read’ codons on an mRNA?
a.DNA polymeraseb.Ribosomec.Primased.RNA polymerase 
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04/10/19

Where, on the mRNA coding for such a protein, would the ER signal sequence likely be located?
A. The signal sequence is not part of the mRNA and is added separately by an enzyme.B.Immediately before the stop codon.C. Anywhere in the mRNA.D.Immediately after the start codon.
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Bio Biology

03/19/19

What is the doubling time in minutes of a bacterial population that went from 100 to 100,000 cells in 5 hours?

A slant is inoculated with 100 E. Coli cells. The slant is left at room temperature where the generation time is 1 hour. How many E. Coli are in the slant in 6 hours? If the slant was initially put... more
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03/11/19

How can dissolved materials be moved from the outside to the inside of a cell when the inside concentration of the material is higher than the outside concentration?
a. Molecules can be moved into a cell against their concentration gradient if that transport is coupled with osmotic transport of water into the cell.b. Substances can be moved against a... more
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Bio

10/23/18

Electron Transport Chain

Oxygen is required in aerobic respiration to serve as the final electron acceptor at the end of the electron transport chain. If insufficient amounts of oxygen are present within the cell, how and... more
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Bio

09/19/18

Which of the following genotypes represents an individual from a true-breeding line?
Which of the following genotypes represents an individual from a true-breeding line?
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Bio

08/29/18

the sacral region is medial/lateral to the palmar region
the sacral region is medial/lateral to the palmar region
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Bio

08/29/18

the patellar region is posterior/anterior to the dorsal region
the patellar region is posterior/anterior to the dorsal region
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03/30/18

What lobe of the brain is impacted by the nail? What function of the brain may Mauro have damaged in this accident?
Football helmets cover the entire braincase and provide a lot of protection to the player's head. However, concussions are still very common in football. The brain is made of soft nervous tissue... more
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Bio

09/28/17

How can you tell the difference from excessive bleeding caused by Vitamin K deficiency and thrombocytopenia?
How can you tell the difference from excessive bleeding caused by Vitamin K deficiency and thrombocytopenia?
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Bio

09/05/17

Illustrate phospho-diester bond
Biology class 11 biomolecules
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10/16/16

Disulfide bonds are most commonly apart of which protein structure?
a. Primary b. Secondary  c. Teritary d. Quaternary 
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Bio

11/01/15

please assist
A new non-invasive screening test that is claimed to be able to identify patients with impaired glucose tolerance, based on a battery of questions related to health behaviors. As mentioned, the new... more
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