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Murrr4er [49]
3 years ago
5

Which phrase best describes osmosis? A. the process where DNA is created B. the movement of molecules through the cell membrane

C. the division process of the cell's cytoplasm D. the movement of water molecules from an area of high concentration to an area of low concentration
Biology
2 answers:
kirza4 [7]3 years ago
6 0

The answer is; D. The movement of water molecules from an area of high concentration to an area of low concentration

A is not correct because Osmosis does not create DNA.

B is incorrect because the movement of molecules through the cell membrane is called Passive Transport.

C is incorrect because the division process of the cell's cytoplasm is called Mitosis.

<u>Thus brings us to </u><u>D </u><u>which is the correct answer because Osmosis is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution, up a concentration gradient.</u>

zavuch27 [327]3 years ago
6 0

Answer by Mimiwhatsup: D. the movement of water molecules from an area of high concentration to an area of low concentration

Why is this right by Mimiwhatsup: Osmosis is a process in which molecules pass through a membrane from less concentrated to higher concentrated one which equalizes it. I choose this one because it makes the most sense out of the rest because none of the rest explain it's process. Osmosis is a passive transport and which means it does not require energy to be applied.

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The rate at which the concentration of a drug in the bloodstream decreases is proportional to the concentration at any time t. I
Westkost [7]

Answer:

C(t) = C_oe^{-kt}

Explanation:

From the given information:

At any given time (t), let c(t) represent the concentration of the drug present in bloodstream.

Deriving the equation:

\dfrac{dC}{dt} decrease proportionally to Concentration C

i.e

\dfrac{dc}{dt} \alpha - C

\dfrac{dc}{dt} = -k C

\dfrac{dc}{c} = -k dt

\int \dfrac{dc}{c} = -k \int dt

㏑(C) = -kt + λ

where,

λ is the integration constant.

Integrating at t = 0, concentration of blood = Co g/mL

C(0) = Co

㏑(C₀) = 0 + λ

λ = ㏑(C₀)

From ㏑(C) = -kt + λ

㏑(C) = -kt + ㏑C₀

㏑(C)  - ㏑C₀ =  -kt

\dfrac{C}{C_o} = e^{-kt}

C(t) = C_oe^{-kt}

∴

The concentration of drug in blood at any time t is:

C(t) = C_oe^{-kt}

4 0
2 years ago
What conclusions can we draw from the lab about photosynthesis and cellular
GuDViN [60]

Answer:

Carbon dioxide and oxygen are recycled through photosynthesis and cellular

respiration forever unless something interrupts.

Explanation:

Photosynthesis and cellular respiration are two distinct and opposite metabolical processes undergone by living cells. They are opposite processes because one utilizes the products of the other as reactants.

Photosynthesis is a unique process to autotrophic organisms like plants. It is the process whereby plants synthesize their food in form of organic molecules (glucose) by combining Carbondioxide (CO2) and water (H2O) in the presence of sunlight.

The overall equation of photosynthesis is as follows:

6CO2 + 6H2O ------> C6H12O6+ 6O2

On the other hand, cellular respiration is the process whereby living cells obtain energy (ATP) by breaking down food molecules (glucose) using oxygen to produce carbondioxide (CO2) and water as products. The overall equation is:

C6H12O6 + 602 -----> 6CO2 + 6H2O

Based on the lab experiments, it can be concluded that Carbon dioxide and oxygen are recycled through photosynthesis and cellular

respiration because photosynthesis recycles/reuses the products of cellular respiration, which are C02 and H2O while cellular respiration recycles/reuses the products of photosynthesis, which are C6H12O6 and O2. This process occurs naturally in the environment and will continue to do so unless something interupts.

Option B is incorrect because light energy from the sun powers photosynthesis while option C is incorrect because photosynthesis transforms light energy to chemical energy while cellular respiration transforms chemical energy to thermal energy.

7 0
3 years ago
Which puffy plant produces instantly blooming beans
Brrunno [24]
Puffapod (if this is for Harry Potter )
8 0
2 years ago
What causes the phase of the moon?
lianna [129]

Answer:

The answer is most likely B

Explanation:

Sunlight Side of the moon Faces

8 0
3 years ago
What determines the chemical properties and physical properties of a mineral?
maw [93]

Answer: It's A.

Explanation: Simple I took the test and he didn't or he just want you to fail I don't so vote me brainliest.

7 0
3 years ago
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