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Nataly [62]
3 years ago
6

Why is that surface area:Volume ratio so important? (About cells and microscopes)

Advanced Placement (AP)
1 answer:
OLga [1]3 years ago
7 0

Answer:It affects the diffusion across a membrane

Explanation:

Since this is placed in the AP section, I assume it is AP Biology, which the syllabus puts emphasis on diffusion

The smaller the ratio is, the bigger the cell. SO, if the ratio is small enough, the molecule will not be able to diffuse through the membrane. Keep that in mind when you calculate different rations using the radius.

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Herbie is a typical high school student. He enjoys school, friend, sports and his motorcycle. Unfortunately he was not wearing h
bonufazy [111]
A) Since the occipital lobe processes visual information, if he injured his lobe, he would not be able to see correctly.

b) Since the hippocampus is responsible for processing emotion and short term memory to long term memory, if he injured this section, he would not be able to remember things past his short term memory capacity.

c) Since the hypothalamus is in charge of maintaining homeostasis within the body, if he injured this section, the conditions of his body would not be stable. For example, if his blood sugar level was too high, his hypothalamus would not send information to the pancreas to synthesize insulin to lower blood sugar levels, so he would have to inject insulin manually.

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8 0
3 years ago
Should the Environment be a federal or state issue?
tatuchka [14]
State , because the state owner , mayor wtv it is , shouldn’t take care of his state , it isn’t a federal problem
8 0
3 years ago
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A ball is thrown at the ground from the top of a tall building. The speed of the ball in meters per second is v(t)=9.8t+v0, were
EleoNora [17]

Answer:

      V_0=2.7m/s

Explanation:

The speed of the ball in meters per second is

      V(t)=9.8t+V_0

Where t denotes the number of seconds since the ball has been thrown and V_0 is the initial speed of the ball.  Then:

     V(2)=9.8(2)+V_0\\\\V(2)=19.6+V_0

If the ball travels 25 meters during the first 2 seconds after it is thrown, what was the initial speed of the ball

Also, for constant acceleration motion, the average velocity is equal to the sum of final and initial velocities divided by 2 and to the distance divided by the time:

         \dfrac{V(t)+V_0}{2}=\dfrac{d}{t}

Where you know:

  • t = 2s
  • V(2)=9.8(2)+V_0=19.6+V_0
  • d = 25m

Substituting (the units are ommited in the equationn, but added at end of the answer):

     \dfrac{V(2)+V_0}{2}=\dfrac{25}{2}

     V(2)+V_0=25

Thus, you have a system of equations:

     V(2)+V_0=25

     V(2)=19.6+V_0

Substituting the second into the first:

      19.6+V_0+V_0=25\\\\19.6+2V_0=25

      2V_0=25-19.6\\\\V_0=5.4/2\\\\V_0=2.7m/s

5 0
3 years ago
What is the significance of the trade oxen and horses
Stels [109]
'Horse Drawn Vehicles' were once the primary transportation method, and there were 3 involved animals, horses, mules, and oxen, although horses were the original go to for a carriage, due to fast movement, oxen soon became popular amoungst emigrants.
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What part of a cell determines a persons blood type
Zolol [24]

Answer:

Red blood cell ( RBC)

Explanation:

The antigens expressed on the red blood cell determine an individual's blood group. The main two blood groups are called ABO.

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