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3 years ago

Which organelle contains digestive enzymes to break down foreign invaders

1 answer:

8 0

Lysosomes are a cell organelle<span> that contains digestive enzymes and are specialized in</span><span> digesting food particles, cell parts, and foreign invaders.</span>

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A spheroidal bacterium with a diameter of 1 mm contains 2 molecules of a particular protein. What is the molar concentration?

creativ13 [48]

Answer : The molar concentration is, $6.35\times 10^{-18}mol/L$

Explanation :

First we have to calculate the moles of protein.

$\text{Moles of protein}=\frac{\text{Number of molecules of protein}}{\text{Avogadro's number}}$

Number of molecules of protein = 2 molecules

Avogadro's number = $6.022\times 10^{23}molecules/mol$

$\text{Moles of protein}=\frac{2\text{ molecules}}{6.022\times 10^{23}molecules/mol}=3.32\times 10^{-24}mol$

Now we have to calculate the radius.

Radius = $\frac{Diameter}{2}=\frac{1mm}{2}=0.5mm=5.0\times 10^{-4}m$

Conversion used : (1 mm = 0.001 m)

Now we have to calculate the volume.

$V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\times 3.14\times (5.0\times 10^{-4}m)^3$

$V=5.23\times 10^{-10}m^3=5.23\times 10^{-7}L$

Conversion used : (1 m³ = 1000 L)

Now we have to calculate the molar concentration.

$Concentration=\frac{\text{Moles of protein}}{\text{Volume}}$

$Concentration=\frac{3.32\times 10^{-24}mol}{5.23\times 10^{-7}L}$

$Concentration=6.35\times 10^{-18}mol/L$

Thus, the molar concentration is, $6.35\times 10^{-18}mol/L$

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3 years ago

What is one evolutionary advantage angiosperms have over gymnosperms?

Amanda [17]

A.) Angiosperms have flowers that attract organisms like insects, which aid in fertilization.

6 0

3 years ago

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The largest region of the brain

Dmitriy789 [7]

The cerebrum/cortex - they're the same thing named differently

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3 years ago

Explain what happens to rocks after their elastic limit is passed.

gizmo_the_mogwai [7]

<span>The will deform physically in a permanent way. Depending on Factors such as pressure and temperature the rock either continues to deform or fractures will occur.</span>

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3 years ago

Species with homologous structures most likely:

nikitadnepr [17]

Species with more likely homologous structures share a common ancestor.

D. share a common ancestor.

<h3>What are example homologous structures?</h3>

The most correct definition for homology would be: They are structures of individuals, of different species or not, that were inherited from a common ancestor. The human arm is homologous to the horse's front leg. The bat's wing is homologous to the whale fin.

With this information, we can conclude that homologous have same embryological origin of structures from different organisms, and these structures may or may not have the same function

Learn more about homologous structures in brainly.com/question/7904813

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2 years ago

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