Cell ______, performs it’s functions, goes thorough _____________

According to NASA scientist Bruce Jakosky, the ability to utilize energy from some source to drive chemical reactions is one of

andrew-mc [135]

Yeasts are unicellular microorganisms that use sugar as food releasing carbon dioxide. With the released gas increases the pressure when oxygen is present inside the bottle, yeasts grow by the breathing process are consuming oxygen and producing carbon dioxide. And when the oxygen is finished the yeasts change to anaerobic metabolism and the degradation of sugar occurs by fermentation that produces greater amounts of alcohol and gaseous carbon dioxide.

4 0

3 years ago

1. The following statement is similar to those you might see on exams. Write a paragraph of 3-5 sentences describing 1) whether

12345 [234]

Answer:

Correct

Explanation:

The statement is correct because, during the chemical synapses, the transmission of information takes place when the presynaptic neuron releases a neurotransmitter that binds to a specific receptor located in the postsynaptic membrane. The release of these neurotransmitters happens almost always when the action potential reaches the synaptic terminal. In the membrane of the synaptic terminal, the number of Ca++ voltage-depended channels is greater than in other parts of the membrane, hence, when the action potential depolarized the membrane, the channels open and the Ca++ defuses actively into the cell. The intracellular concentration of Ca++ is very high and this strong and rapid increase, facilities the depolarization of the membrane and allows the release of the neurotransmitter to the postsynaptic membrane.

4 0

3 years ago

If a person’s blood cortisol concentration is 10 µg/mL, and 10 mg of cortisol can be excreted from the body in a 24-hour period,

RSB [31]

Answer:

$1000 ml$ of blood plasma was “cleared”

Explanation:

Given,

Concentration of a person’s blood cortisol $= 10$ µg/mL

The amount of cortisol excreted from the body in a period of 24 hour $= 10$ mg

The volume of blood plasma cleared during this time period is equal to

amount of cortisol excreted from the body divided by Concentration of a person’s blood cortisol

The above definition could be represented as following-

volume of blood plasma cleared $= \frac{A}{B} \\$

Where A represents amount of cortisol excreted from the body

while B represents the concentration of a person’s blood cortisol

Substituting the given values in above equation, we get -

$= \frac{10 * 10^{-3}g}{10*10^{-6}\frac{g}{ml} } \\= 1000 ml$

$1000 ml$ of blood plasma was “cleared”

6 0

3 years ago

Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two sampl

SVETLANKA909090 [29]

Answer:

Sample A

T= 21.3% and A= 21.3%

G=28.7% and C= 28.7%

SAMPLE B

T=28.7% and A= 28.7%

G= 21.3% and C= 21.3%

Sample A would have higher melting temperature

Explanation:

According to given information, sample A contains 21.3% thymine.

Percentage of adenine in sample A= 21.3% (Since adenine base pairs with thymine, so, adenine and thymine are present in equal amount in a double stranded DNA)

Total of A+T in sample A= 21.3 + 21.3 = 42.6%

G+ C content of sample A= 100-42.6= 57.4%

Percent G content of sample A = 57.4/2 = 28.7%

Percent C content of sample A = 28.7%

SAMPLE B:

According to the given information, sample B contains 28.7% thymine.

Therefore, percent of Adenine base in sample B= 28.7%

Total of A+T content in sample B= 28.7 + 28.7 = 57.4%

G + C content of the sample B = 100-57.4= 42.6%

Percent G content of the sample B= 42.6/2= 21.3%

Percent C content of sample B = 21.3%

There are three hydrogen bonds between a GC pair while there are only two hydrogen bonds between AT pair. The DNA content with higher GC content has higher melting temperature. Therefore, sample A would have higher melting temperature.

4 0

4 years ago

Is Decomposition a fast change that happens in an ecosystem? (true or false)

vodka [1.7K]

Decomposition is not a fast process. There are 5 steps to it. So in this case it would be FALSE.

4 0

4 years ago

Cell ______, performs it’s functions, goes thorough ______________ to check mutations in DNA.

Cell , performs it’s functions, goes thorough ________ to check mutations in DNA.