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2 years ago

What is "set point theory"? are toxins involved? describe how body size and homeostasis are related?

2 answers:

6 0

<span>The set point theory is when your metabolism adjusts to keep your body weight consistent. It says that humans have predetermined body weight or fat content and they body closely regulates your metabolism accordingly.</span>

guapka [62]2 years ago

3 0

Set point refers to the optimal weight range or body size that your body is designed to function. According to the theory, the human body fights bodily changes and tries to maintain homeostasis by altering body fat or metabolism. Our body can also be affected by other factors such as environmental toxins.

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Relative to rainfall, the tundra is most like what other biome

11Alexandr11 [23.1K]

Alpine tundra occurs in mountains worldwide. The flora of the alpine tundra is characterized by dwarf shrubs close to the ground.

7 0

1 year ago

What is the main function of each part of the compound microscope

natulia [17]

Answer:

Body tube (Head): The body tube connects the eyepiece to the objective lenses. Arm: The arm connects the body tube to the base of the microscope. Coarse adjustment: Brings the specimen into general focus. Fine adjustment: Fine tunes the focus and increases the detail of the specimen

Explanation:

8 0

2 years ago

A cell is in a equilibrium with its surrounding at 30 degrees Celsius. The molarity of surrounding sucrose solution is 0.5m. Cal

Travka [436]

Solute potential of a solution is calculated using the formula,

Ψ $_{s}=-(iCRT)$

Where,

Ψ $_{s}$ is the solute potential of the solution,

<em>i</em> is the degree to which the solute ionizes(ionization constant) in solution = 1, as sucrose is a nonelectrolyte.

C is the concentration of the solution in molarity = 0.5 M

R is the gas constant or the pressure constant = 0.0831 L.bar/(mol.K)

T is the temperature in Kelvin scale = $30^{0}+273 =303 K$

Calculating the solute potential of the surrounding sucrose solution:

Ψ $_{s}=-(iCRT)$

= -(1 * 0.5 M * (0.0831 L.bar/(mol.K))* 303 K)

= 12.6 bar

Therefore, the solute potential of the surrounding solution is 12.6 bar

7 0

1 year ago

For the hydrolysis of ATP to ADP + Pi, the free-energy change is 7.3 kcal/mol under standard conditions (1 M concentration of bo

Anettt [7]

Answer:

The correct answer will be- the free energy change will be +13 kcal/mol.

Explanation:

The free energy change of a chemical reaction is the measure of the spontaneity of the reaction in which the negative value of free energy represents that reaction is exergonic while positive value represents that reaction is endergonic.

In the given question, if the free-energy change is 13 kcal/mol for the hydrolysis of ATP to ADP + Pi which releases energy used by the cells then reversal of the reaction that is the formation of ATP molecules from the ADP and Pi requires energy which will be the same energy required to break the ATP.

This shows that 13kcal/mol energy will be used but with a positive sign as the energy is needed or the reaction is endergonic.

5 0

1 year ago

Gel analysis of fragments in step 6 shows that even though the undigested DNA and DNA digested with HindIII are both 1000 bp, th

Soloha48 [4]

Answer:

Size of the band varied

Explanation:

In the given question, the options are not provided but based on the information provided in the question, it can be predicted.

When the DNA was digested by the HindIII, then the length of the digest came about 1000 bp and the undigested DNA was also found 1000 bp.

When both the bands were analysed by Gel electrophoresis then the bands do not run to the same distance therefore this shows that the size of both the bands was not equal and their size varied.

Thus, the size of the band varied is correct.

6 0

2 years ago