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Rashid [163]
3 years ago
9

What is a cell made out of

Biology
1 answer:
slega [8]3 years ago
5 0

Answer:

Two-thirds of a cell is water, which means that two-thirds of your whole body is water. The rest is a mixture of molecules, mainly proteins, lipids and carbohydrates.

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If a state has no minimum wage law or its minimum wage is lower than the federal law, workers are entitled to the federal wage. If a state's minimum wage is higher than the federal one, workers are entitled to the state-specific wage
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What is the key to ATP Energy
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Actually, the key to energy production lies ​with the phosphate groups. Breaking the phosphate bond is an exothermic reaction. So, when ATP loses one or two phosphate groups, energy is released. More energy is released breaking the first phosphate bond than the second.

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Define Prokaryote is the simplest form and in your own words
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One of your lab partners has followed the recommended procedure of running Gram-positive and Gram-negative control organisms on
andreyandreev [35.5K]

Answer:

Reduced in holding time of decolrization step and also used less Alcohol because decolrization step is important in Gram's staining.The decolorization step must be performed carefully. Otherwise over-decolorization may occur. This step is critical and must be timed correctly otherwise the CV stain will be removed from the Gram-positive cells. If the decolorizing agent is applied on the cell for too long time, the Gram-positive organisms to appear Gram-negative..

Explanation:

Gram' staining is a technique used in microbiology labs to differentiate between Gram's positive and negative

<u>Gram-positive bacteria :</u>Stain dark purple due to retaining the primary dye called CV in the cell wall.

<u>:Gram-negative bacteria </u>Stain red or pink due to retaining the counter staining dye called Safranin or neutral red.

There are four basic step in Gram" staining

1) Application of the Primary Stain to a Heat-Fixed Smear of Bacterial Culture

2)Addition of Gram's Iodine

3)<u>Decolorization with 95% Ethyl Alcohol:</u>Alcohol or acetone dissolves the lipid outer membrane of Gram-negative bacteria, thus leaving the peptidoglycan layer exposed and increases the porosity of the cell wall. The CV-I complex is then washed away from the thin peptidoglycan layer, leaving Gram-negative bacteria colorless.

On the other hand, alcohol has a dehydrating effect on the cell walls of Gram-positive bacteria that causes the pores of the cell wall to shrink. The CV-I complex gets tightly bound into the multi-layered, highly cross-linked Gram-positive cell wall thus staining the cells purple.

The decolorization step must be performed carefully. Otherwise over-decolorization may occur. This step is critical and must be timed correctly otherwise the CV stain will be removed from the Gram-positive cells. If the decolorizing agent is applied on the cell for too long time, the Gram-positive organisms to appear Gram-negative. Under-decolorization occurs when the alcohol is not left on long enough to wash out the CV-I complex from the Gram-negative cells, resulting in Gram-negative bacteria to appear Gram-positive.

7 0
3 years ago
Im giving away more points bc i don't ask questions fr so here u guys go enjoy!!
mars1129 [50]

Answer:

Aw thx

Explanation:

3 0
3 years ago
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