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3 years ago

Choose an organism that you are familiar with, and explain how the three parts of the cell theory relate to the organism

2 answers:

6 0

Organism: Apple
All cells from the apple come from cell division occurring from the apple in order for it to grow.
An apple has multiple cells
The small living part in an apple is a cell thus showing that cells are the basic living unit.

natta225 [31]3 years ago

6 0

Answer:

Organism: Chicken

Explanation:

Let's suppose we have a chicken.

Chicken is a multicellular organism, with several parts such as wings, legs among many others.

The first part of cell theory: All organisms are made of one or more cells. Chicken is composed of several cells, cells are a couple in organs, such as hearth, legs and other. Each organ is composed of a specialized type of cell.

The second part of cell theory: The cell is the basic unit of organisms.The cell is the minimum expression of living organisms. Cells can eat, drink, digest and breath. Due to it, cells are the basic unit of organisms. Each cell inside the chicken can achieve own functions by itself.

Third. All cells come from existing cells.If we analyze the chicken origin, we can notice that chicken life began as an egg, a single giant cell. With time going, the single cell of the chicken was reproducing until it reaches the organism and many cells. In this sense, all chicken cells come from a single existing cell of the egg.

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A 3.4 g sample of an unknown monoprotic organic acid composed of C,H, and O is burned in air to produce 8.58 grams of carbon dio

Pavlova-9 [17]

Answer:

$C_7H_6O_2$

Explanation:

Hello there!

In this case, we can divide the problem in three stages: (1) determine the empirical formula with the combustion analysis, (2) compute the molar mass of acid via the moles of the acid in the neutralization and (3) determine the molecular formula.

(1) In this case, since 8.58 g of carbon dioxide are released, we can first compute the moles of carbon in the compound:

$n_C=8.58gCO_2*\frac{1molCO_2}{44.01gCO_2}*\frac{1molC}{1molCO_2}=0.195molC$

And the moles of hydrogen due to the produced 1.50 grams of water:

$n_H=1.50gH_2O*\frac{1molH_2O}{18.02gH_2O}*\frac{2molH}{1molH_2O} =0.166molH$

Next, to compute the mass and moles of oxygen, we need to use the initial 3.4 g of the acid:

$m_O=3.4g-0.195molC*\frac{12.01gC}{1molC}-0.166molH*\frac{1.01gH}{1molH} =0.89gO\\\\n_O=0.89gO*\frac{1molO}{16.0gO}=0.0556molO$

Thus, the subscripts in the empirical formula are:

$C=\frac{0.195}{0.0556}=3.5 \\\\H=\frac{0.166}{0.0556}=3\\\\O=\frac{0.0556}{0.0556}=1\\\\C_7H_6O_2$

As they cannot be fractions.

(2) In this case, since the acid is monoprotic, we can compute the moles by multiplying the concentration and volume of KOH:

$n_{KOH}=0.279L*0.1mol/L\\\\n_{KOH}=0.0279mol$

Which are equal to the moles of the acid:

$n_{acid}=0.0279mol$

And the molar mass:

$MM_{acid}=\frac{3.4g}{0.0279mol} =121.86g/mol$

(3) Finally, since the molar mass of the empirical formula is:

7*12.01 + 6*1.01 + 2*16.00 = 122.13 g/mol

Thus, since the ratio of molar masses is 122.86/122.13 = 1, we infer that the empirical formula equals the molecular one:

$C_7H_6O_2$

Best regards!

8 0

3 years ago

What type of radiation wave from the Sun does this graphic display?

liraira [26]

The answer is visible rays. For example, when a rain storm stops, the sun comes out and you are likely to see a rainbow. This is because the sun shines on water molecules in the air and the colors appear. These colors are called visible light. The only ray that a naked Human eye can see

8 0

3 years ago

What has more mass a golf ball or tennis ball ?

Romashka [77]

1 golf ball has more mass than a tennis ball.

3 0

3 years ago

Read 2 more answers

Rank the effective nuclear charge Z* experienced by a valence electron in each of these atoms:

LekaFEV [45]

Answer:

The atoms are ranked in decreasing order as follows:

Fluorine ---4

Carbon ----3

Boron ------2

Beryllium --1

Explanation:

Effective nuclear charge (Zeff) is defined as the difference between the actual nuclear charge (the atomic number, Z) and the shielding constant (S).

It is calculated by finding the atomic number and electronic configuration, attributing a shielding value to each electron, adding all the shielding values and using the formula:

Z eff = Z - S

Effective nuclear charges:

An atom of carbon: 3.25

An atom of fluorine: 5.20

An atom of beryllium: 1.95

An atom of boron: 2.60

5 0

3 years ago

Which action represents an increase in entropy?

lawyer [7]

Answer:

Green food coloring diffusing through cookie dough.

Explanation:

Entropy is a physical quantity for an equilibrium thermodynamic system that measures the degree of organization of the system, or that is the ratio of an increase in internal energy to an increase in temperature of the system.

When the green dye diffuses through the cookie dough there is an increase in entropy, that is, there is an increase in system disorder at the molecular level, where a change in cookie dough occurs.

3 0

3 years ago