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Umnica [9.8K]
3 years ago
9

Need a bit of helpppppppppppppppppppppp thank you

Biology
1 answer:
shtirl [24]3 years ago
3 0

Explanation:

If the concentration of molecules outside the cell is very high relative to the internal cell concentration, the rate of diffusion will also be high. If the internal and external concentrations are similar (low concentration gradient) the rate of diffusion will be low.

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Submerging a plant cell in distilled water (100% water) will result in
I am Lyosha [343]

Submerging a plant cell in distilled water (100% water) will result in turgid plant cell.

When the plant cell is placed in distilled water which is a hypotonic solution , it takes up water by osmosis and starts to swell. Because plant cell has the cell wall bursting is prevented. As a result, he plant cell is said to have become "turgid" (i.e. swollen and hard).


7 0
3 years ago
Compare the physical and chemical properties of a compound to those of the elements of which it is composed
zepelin [54]

Answer:

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water H_2O

2H_2O(l)\rightarrow 2H_2(g+O_2(g)

Physical property is defined as the property of a substance which becomes evident during physical changes. Water is liquid at room temperature whereas hydrogen and oxygen are gases at room temperature.

Chemical property is defined as the property of a substance which becomes evident during chemical changes. Water reacts with metals to form bases, hydrogen reacts with metals to form hydrides and oxygen reacts with metals to form oxides.

6 0
3 years ago
What are the characteristics of a multi celled organism
vlabodo [156]

Answer:

Multicellular organisms are made of more than one cell and are complex organisms.

They are visible to the naked eye.

They possess distinct organs and organ systems.

They are eukaryotes, i.e., they contain membrane-bound structures.

Their cells exhibit division of labor.

Their size increases with the number of cells in an organism

Explanation:

4 0
2 years ago
Where would you find hemoglobin that is relatively o2 poor in a healthy resting person?.
sukhopar [10]

Answer:

Venous blood

Explanation:

Arterial blood is carrying oxygen to tissues.....after delivering the oxygen it is venous blood and has less oxygen.

3 0
2 years ago
If acetyl-CoA is labeled with 14C at its methyl group, how many rounds of the cycle are required before 14CO2 is released?
Elis [28]

Answer:

14 CO₂ will be released in the second turn of the cycle

Explanation:

<u>Complete question goes like this</u>, "<em>The CO2 produced in one round of the citric acid cycle does not originate in the acetyl carbons that entered that round. If acetyl-CoA is labeled with 14C at the carbonyl carbon, how many rounds of the cycle are required before 14CO2 is released?</em>"

<u>The answer to this is</u>;

  • The labeled Acetyl of Acetyl-CoA becomes the terminal carbon (C4) of succinyl-CoA (which becomes succinate that is a symmetrical four carbon diprotic dicarboxylic acid from alpha-ketoglutarate).
  • Succinate converts into fumarate. Fumarate converts into malate, and malate converts into oxaloacetate. Because succinate is symmetrical, the oxaloacetate can have the label at C1 or C4.
  • When these condense with acetyl-CoA to begin the second round of the cycle, both of these carbons are discharged as CO2 during the isocitrate dehydrogenase and alpha-ketoglutarate dehydrogenase reactions (formation of alpha-ketoglutarate and succinyl-CoA respectively).

Hence, 14 CO₂ will be released in the second turn of the cycle.

3 0
3 years ago
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