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enyata [817]
3 years ago
8

Which two features are present in a plant cell but not in an animal cell?

Biology
1 answer:
Mamont248 [21]3 years ago
8 0

Answer:

B and C

Explanation:

B is the chloroplast where light is captured for photosynthesis. C is the cell wall which gives the plant support and structure. Animals don't do photosynthesis and we have skeletons for support so we don't need these structures.

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Explain briefly how these features contribute to the efficiency of photosynthesis?​
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Answer:

here's your answer

Explanation:

the estimated maximum energy efficiency of photosynthesis is the energy stored per mole of oxygen evolved, 117/450, or 26 percent.

Consequently, plants can at best absorb only about 34 percent of the incident sunlight. The actual percentage of solar energy stored by plants is much less than the maximum energy efficiency of photosynthesis. An agricultural crop in which the biomass (total dry weight) stores as much as 1 percent of total solar energy received on an annual areawide basis is exceptional, although a few cases of higher yields (perhaps as much as 3.5 percent in sugarcane) have been reported. There are several reasons for this difference between the predicted maximum efficiency of photosynthesis and the actual energy stored in biomass. First, more than half of the incident sunlight is composed of wavelengths too long to be absorbed, and some of the remainder is reflected or lost to the leaves

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3 years ago
Choose all the answers that apply.
lorasvet [3.4K]

ethical scientist would follow scientific method they would also report accurate data and they're going to keep detailed records now an ethical scientist is not going to hide their experiment from the public the only reason you're going to hide your experiment from the public would be because you have something to hide being on ethical and it would also be unethical to make an unbiased conclusion

7 0
3 years ago
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What is the latitude and longitude (to the nearest degree) of the following cities? a. Kansas City b. Philadelphia c. Reno d. Mi
insens350 [35]

Latitude is the angular expanse of the north or south of the equator of the earth, while longitude is the angular distance of a place east or west of the meridian at Greenwich, England, or object. The latitude and longitude of the following cities are:

A.      Kansas City - 39.0997⁰ N, 94.5786⁰ W

B.      Philadelphia – 39.9526⁰ N, 75.1652⁰ W

C.      Reno – 39.5296⁰ N, 119.8138⁰ W

D.      Minneapolis – 44.9778⁰ N, 93.2650⁰ W

6 0
3 years ago
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Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi
Elodia [21]

Answer:

The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

Explanation:

The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

  • <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest. </em>
  • <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels. </em>
  • <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

Learn more:

Simple diffusion and active transport  brainly.com/question/6420224

4 0
3 years ago
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