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2 years ago

13

The structure of a chloroplast consists of thylakoid sacs that are stacked together one over the other. How does the arrangement

of the thylakoids help the chloroplast?

1 answer:

Tcecarenko [31]2 years ago

6 0

Answer:

vizioner conter nu poltvinh

Explanation:

grandes comer ler coltrantes

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A chromosome has an inversion. Which describes a pericentric inversion

Marina CMI [18]

The correct answer for this question would be the fourth option. Deletion of genes around the centromere is considered a pericentric inversion. The Pericentric inversions include the centromere and there is a break point in each arm. <span>Deletions and duplications occur during crossing over during the inversion which results in recombination in two loops. </span>

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3 years ago

Assignment: The West Nile Virus Exploration

Katarina [22]

Answer:

3 should be right im sure i might be right leave a review if wrong and how it was have a nice day

Explanation:

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3 years ago

assume that life on Mars requires cell potential to be 100mV, and the extracellular concentrations of the three major species ar

svetlana [45]

Answer:

Explanation:

From the information given:

The cell potential on mars E = + 100 mV

By using Goldman's equation:

$E_m = \dfrac{RT}{zF}In \Big (\dfrac{P_K[K^+]_{out}+P_{Na}[Na^+]_{out}+P_{Cl}[Cl^-]_{out} }{P_K[K^+]_{in}+P_{Na}[Na^+]_{in}+ P_{Cl}[Cl^-]_{in}} \Big )$

Let's take a look at the impermeable cell with respect to two species;

and the two species be Na⁺ and Cl⁻

$E_m = \dfrac{RT}{zF} In \dfrac{[K^+]_{out}}{[K^+]_{in}}$

where;

z = ionic charge on the species = + 1

F = faraday constant

∴

$100 \times 10^{-3} = \Big (\dfrac{8.314 \times 298}{1\times 96485} \Big) \mathtt{In} \Big ( \dfrac{4}{[K^+]_{in}} \Big)$

$100 \times 10^{-3} = 0.0257 \Big ( \dfrac{4}{[K^+]_{in}} \Big)$

$3.981= \mathtt{In} \Big ( \dfrac{4}{[K^+]_{in}} \Big)$

$exp ( 3.981) = \dfrac{4}{[K^+]_{in}} \\ \\ 53.57 = \dfrac{4}{[K^+]_{in}}$

$[K^+]_{in} = \dfrac{4}{53.57}$

$[K^+]_{in} = 0.0476$

For [Cl⁻]:

$100 \times 10^{-3} = -0.0257 \ \mathtt{In} \Big ( \dfrac{120}{[Cl^-]_{in}} \Big)$

$-3.981 = \ \mathtt{In} \Big ( \dfrac{120}{[Cl^-]_{in}} \Big)$

$0.01867 = \dfrac{120}{[Cl^-]_{in}}$

$[Cl^-]_{in} = \dfrac{120}{0.01867}$

$[Cl^-]_{in} =6427.4$

For [Na⁺]:

$100 \times 10^{-3} = 0.0257 \Big ( \dfrac{145}{[Na^+]_{in}} \Big)$

$53.57= \Big ( \dfrac{145}{[Na^+]_{in}} \Big)$

$[Na^+]_{in}= 2.70$

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2 years ago

While snorkeling in the ocean you find large, leafy organisms that are brownish in color growing in large masses. You are unsure

lutik1710 [3]

Protists = eukaryotic organisms tgat are mostly classfies as unicellular/ mostly seperate nuclear division phases of mitosis doesnt occur

for now we know that it is not d (bacteria) or a (too board)
c and b show describe a word called 'cell specialisation'
i think the answer is c since it is said to be mostly unicellular and we know that single cell doesnt have much specilaised cell

idk

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3 years ago

Read 2 more answers

Which of the following is maintained by the systems of the body?

Bogdan [553]

I believe the correct answer is homeostasis.

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3 years ago

Read 2 more answers