Apply the principles of diffusion to explain what will occur after placing a dyed sugar cube in a beaker of water

1 answer:

7 0

The molecules in the sugar move from an area of higher concentration (sugar cube) to an area of lower concentration in the water.

That is exactly what diffusion is: the net movement of molecules or atoms driven by a gradient , which means that it doesn’t requires energy.

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Arrange the cells in order from least specialized to most specialized. Cells of the mesoderm cells of a zygote cells of a blasto

sukhopar [10]

Answer:

The order is as:

1) Zygote cell

2) Blastocyst cells

3) Mesoderm cells

4) Heart Cells

Cell specialization or cell differentiation as the name indicates, is the process during which cells become specified to perform specific functions instead of generic function.

The first cell that is formed after union of egg and sperm is called as Zygote that is not specified to perform only one function. It has all the genetic data of an organism and can develop into any specific cell with time. Zygote is an specialized cell.
When zygote keeps dividing, after 5 days it becomes a mass or around 300 cells called blastocyst that have two main layers- an outer layer of trophoblast and inner layer of stem cells. These stem cells can be further specialized into any type or cells or an organism.
After a time span of around two weeks, stem cells or inner layer of blastocysts further splits into three layers, ectoderm, mesoderm and endoderm. Now mesoderm is the layer which is later specialized into heart or muscle or bone cells.
Heart cells are the excellent examples of specialized cells that give the heart an ability to pump blood and make our survival possible.

Hope it helps!

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4 years ago

Compare and contrast wetlands and river streams

Alexxandr [17]

Answer:

Different: Both terms refer to water bodies flowing across the earth’s surface, the former with shallow channels and narrow banks, whereas the latter are considerably larger. Wetlands considers streams and rivers within the same wetland category as they are part of a flow continuum. I don't know how they are the same but I hoped this helped a little...sorry! Have a good day.

Explanation:

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3 years ago

How is it possible for an offspring to exhibit a recessive trait if neither parent exhibited that recessive trait? What must be

coldgirl [10]

For offspring of to dominant appearing parents to appear recessive, both parents must be heterozygous, meaning they each have one dominant and one recessive allele. About 25% of their offspring will exhibit the recessive trait.

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3 years ago

What is the name given to the

vlada-n [284]

Answer:

Explanation:

the others don't match.

"Oxidative phosphorylation is the final stage of aerobic cellular respiration. There are two substages of oxidative phosphorylation, Electron transport chain and Chemiosmosis. In these stages, energy from NADH and FADH2, which result from the previous stages of cellular respiration, is used to create ATP."

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2 years ago

Which product does the Krebs cycle require from the electron transport chain

emmasim [6.3K]

NAD +molecule

Explanation:

Krebs cycle and electron transport chain are important steps in cellular respiration.

In the Krebs cycle, there is a need of NAD+ molecule which is then in Krebs cycle reduced to form a NADH2 molecule.

NADH2 is also an energy currency. It , giving electron in electron transport chain and return to Krebs cycle as NAD+.

Now in the Krebs cycle, it is ready to take electrons again.

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3 years ago