Questions
What is the ATP net output for aerobic respiration for the following steps: Glycolysis Kreb Cycle...

What is the ATP net output for aerobic respiration for the following steps:

Glycolysis

Kreb Cycle

Electron Transport Chain

State how many of the following will be produced during glycolysis with two glucose molecules:

Pyruvate

ATP    

NADH

In: Biology

What evolutionary steps the capsid went through and why? Why a viral capsid does not protect...

What evolutionary steps the capsid went through and why? Why a viral capsid does not protect a virus from dehydration and why viruses cannot produce their own energy?

In: Biology

3. Where can RNases be found? How can you prevent RNase contamination in your samples during...

3. Where can RNases be found? How can you prevent RNase contamination in your samples during experiments involving RNA?

In: Biology

You visit a small island, which just two days earlier experienced a volcanic explosion. Nothing appears...

You visit a small island, which just two days earlier experienced a volcanic explosion. Nothing appears to be alive on the island, but you collect soil samples and place them on culture media in the laboratory, Within 24 hours you find actively growing bacterial colonies on several of you plates. The bacteria that you find are most likely to

A. have sex pili

B. have a glycocalyx

C. have endospores

D. have capsules

In: Biology

What are prions, viroids and viroins? How do virusoids differ from satellite viruses?

What are prions, viroids and viroins? How do virusoids differ from satellite viruses?

In: Biology

Using the mark-recapture equation what factors can cause an overestimate of population size and what factors...

Using the mark-recapture equation what factors can cause an overestimate of population size and what factors will cause an underestimate of population size?

In: Biology

Mycoplasmas are classified as Low G + C Gram-Positive Bacteria in the textbook. However their staining...

Mycoplasmas are classified as Low G + C Gram-Positive Bacteria in the textbook. However their staining phenotype indicates they are gram negative. What is the basis for classification as gram positive bacteria?

In: Biology

How do bacteria resist destruction by phagocytic cells?

How do bacteria resist destruction by phagocytic cells?

In: Biology

Swannamotosis is a variant of Neurofibromatosis-type 2. It is an autosomal dominant condition that shows both...

Swannamotosis is a variant of Neurofibromatosis-type 2. It is an autosomal dominant condition that shows both incomplete penetrance and variable expressivity. Sixty percent of individuals with at least one mutant allele will show the condition in the phenotype. Of those showing the phenotype, 20% have a severe version, 50% have a moderate version, and 30% have a mild version. If two heterozygous parents have a child, what is the chance that is will show the most severe form of the disorder? To calculate this we'll have to multiply _______ X ________ X ________ X _______. If a child of two heterozygous parents, does not have the condition, what is their chance that they do NOT have the allele? ________

Blank 1 Options: 1/2, 1/4, 2/3, 3/4, 1

Blank 2 Options: 0.4, 0.6, I dont need either of these values

Blank 3 Options: 0.2, 0.3, 0.5, I dont need any of these values

Blank 4 Options: 1/4, 1/2, 2/3, 3/4, I dont need any of these values

Blank 5 Options: 1/4 x 0.4 x 0.2, 2/3 x 0.4, 1/4 x 0.4(3.4), (1/4)/(0.4 x (3/4)), (1/4)/((1/4) + 0.4(3.4))

In: Biology

5. Yeast engage in alcoholic fermentation in order to a. provide brewers with a steady source...

5. Yeast engage in alcoholic fermentation in order to a. provide brewers with a steady source of income b. produce NADH from NAD+ to allow glycolysis to operate anaerobically c. produce acetyl Co A for entry into the TCA cycle when oxygen is absent d. produce ATP from pyruvate e. none of the above

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What are the 10 Local Health Department (LHD) standards?

What are the 10 Local Health Department (LHD) standards?

In: Biology

The relationship between CO2 gas produced to sugar consumed is shown below. m = n /...

The relationship between CO2 gas produced to sugar consumed is shown below.

m = n / 2s

where m is the number of moles of sugar consumed, n is the number of moles of CO2 produced, and s is the number of simple sugars in that sugar.

This means that for:

a monosaccharide, 2 CO2 molecules are produced per molecule of sugar

a disaccharide, 4 CO2 molecules are produced per molecule of sugar

a trisaccharide, 6 CO2 molecules are produced per molecule of sugar

Calculating the Rate of Respiration

First, use the Ideal Gas Law to convert the volume of gas to molecules. This is measured in moles, not the number of individual molecules. The Ideal Gas Law relates the moles of CO2 gas molecules to its volume as shown in the equation below.

PV = nRT

where P is the atmospheric pressure in the lab, V is the volume in liters, n is the number of moles of CO2, R is the gas constant 0.082 L-atm/mole-Kelvin, and T is the temperature in Kelvin.

Next, convert the moles of CO2 molecules produced to the moles of sugar consumed using the equation shown below.

m = n / 2s

Finally, combine several calculations to convert the results to milligrams of sugar fermented per minute:

convert from moles to grams

convert from grams to milligrams

divide by the length of respiration

The formula is below.

f = 1000mw / t

where f is the mg of sugar fermented per minute, m is the number of moles of sugar consumed, w is the molecular weight of the sugar in g/mole, and t is the respiration time in minutes.

For example, if 1 L of CO2 is collected when yeast is incubated with maltose for 5 minutes and the final temperature of the flask is 294.5 K, the milligrams of sugar fermented per minute are calculated as follows:

moles of CO2 = (1 atm × 1 L CO2) ÷ (0.082 L-atm/mole-Kelvin × 294.5 K)
moles of CO2 = 0.041 moles

moles of maltose consumed = 0.04141 moles of CO2produced ÷ (2 × 2 simple sugars in maltose)
moles of maltose consumed = 0.01035 moles

mg of maltose per minute = (0.01035 moles maltose) × (MW of maltose) × (1000 mg/g) ÷ (5 minutes)  
mg of maltose per minute = 708.6 mg/min

Sugar Information Table
Sugar Sugar Type Molecular weight
glucose mono 180.2 g/mole
fructose mono 180.2 g/mole
maltose di 342.3 g/mole
maltotriose tri 504.4 g/mole

For each of the sugars fermented by yeast, fill in the chart below to determine the volume of CO2 production.

Results Table(my answers)

Sugar

Initial Gas
Volume at t = 0 minutes (mL)

Final Gas
Volume at t = 1 minutes (mL)

Volume of Co2 Produced
Final - Initial (mL)

glucose

0.0 ml

4.3 ml

4.3 ml

fructose

0.0 ml

1.3 ml

1.3 ml

maltose

0.0 ml

5.1 ml

5.1 ml

maltotriose

0.0 ml

1.0 ml

1.0 ml

For each of the sugars fermented by yeast, fill in the chart below to determine the mg of sugar consumed per minute during fermentation.

Calculations Table

Sugar

MW (g/mole)

Moles of CO2 produced

Moles of Sugar consumed

mg of sugar/min

fructose

maltose

maltotriose

My answers

Glucose temp 299.0k after 1 minute and 4.3ml in syringe

fructose temp 296.0k after 1 minute 1.3ml of gas in the syringe

maltose temp 300.0k after 1 minute 5.1 ml

maltotriose temp 295.6k after 1 minute 1.0 ml

In: Biology

How will you, as a future health system leader, address the identified community and constituency challenges?

How will you, as a future health system leader, address the identified community and constituency challenges?

In: Biology

Describe the process of developing a strategic plan and its core key element for a public...

Describe the process of developing a strategic plan and its core key element for a public health organization.

In: Biology

1. For each of the following protists, list and describe the major structures. What type of...

1. For each of the following protists, list and describe the major structures. What type of locomotion do you think each protist employs?

A. Euglena

B. Paramecium

C. Giardia

D. Amoeba

E. slime mold

2. Compare the advantages a protist would gain by having a unicellular, filamentous, or colonial form. Explain the advantages of each of the three alternatives.

In: Biology