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3 years ago

What organelle would you not find in a plant cell? Chloroplasts,centrioles,central vacuole,or cell wall?

Biology

2 answers:

Sedbober [7]3 years ago

5 0

Answer:

Centrioles

Explanation:

If we look at ths other options Chloroplast and Cell Wall are both needed for a plant to survive and function. So we automatically know that it's going to be there so those aren't an option. We know that both animal and plant cells have a vacuole but plant cells have larger ones so we know that's not an answer. Leaving us with the only other possible answer left, Centrioles.

Lina20 [59]3 years ago

4 0

Answer:

Hey!

Your answer is CENTRIOLES

Explanation:

We know that Plants have a CELL WALL (shape), a CENTRAL VACUOLE (water storage etc) and CHLOROPLASTS (photosynthesis)

BUT Centrioles don't form parts of the "components" of the plant cell...

<h2><u>I HOPE THIS HELPED YOU!</u></h2>

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Dr. Graham exposes rats to a vanilla scent prior to receiving a food pellet in the left corner of their cage, but provides no fo

QveST [7]

Answer:

Food pellet

Explanation:

A learning process which results due to an associated between two stimuli, one a natural stimulus and the other an environmental stimulus is known as classical conditioning.
For classical conditioning, there is a neutral stimulus as well as the unconditioned stimulus.
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6 0

3 years ago

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

4 0

3 years ago

All the information needed to make proteins is coded in dna by what

Crank

Hello mate,

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may be ...All the information needed to mqke proteins is coded in DNA by ♢♢♢adenine, thymine, cytosine and guanine.

__________

I hope it will help you :-)

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3 years ago

Read 2 more answers

Please help please help NO LINKS

Setler [38]

Answer:

<em>The tyres of car wear out gradually, due to the frictional force. Frictional force arises between two objects when they move over one another. In the given cases it arises between the tyre and the surface which it is travelling on.</em>

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2 years ago

A student hiking in a rocky area on a mountain notices that wide, deep cracks have

babunello [35]

Answer:

the answer should be G

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4 0

2 years ago