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2 years ago

What kind(s) of cells can develop from pluripotent stem cells?

Biology

2 answers:

jeka942 years ago

7 0

Answer: B. Any cells of the human body or placenta.

Explanation:

All types of cells in the human body can develop from pluripotent stem cells. Embryonic stem cells are also considered pluripotent.

Svetllana [295]2 years ago

4 0

Answer:

Answer: B. Any cells of the human body or placenta.

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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⁺]:

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

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

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

6 0

2 years ago

_____ communicate information in the opposite direction, from the brain and nervous system to muscles and glands.

yulyashka [42]

Answer:

The correct answer would be efferent neurons.

Efferent neurons are the motor neurons which communicate information in the opposite direction as compared to the afferent neurons, that is, they communicate information or response impulses from the brain or central nervous system to the muscles or glands.

The response impulses results in the movement of the muscles or activation/deactivation of certain gland

In contrast, afferent neurons are the sensory neurons which carry impulses from the receptors to the central nervous system.

5 0

2 years ago

The Rh factor identifies the presence of the rhesus protein in blood. The Rh factor can be represented by a + or – sign. It is i

vitfil [10]

Answer:

Blood type A

Explanation:

Blood type A Rh+

Antigens (on the surface of the red blood cells):

A indicates there are A antigens.

Rh+ indicates there are Rh antigens.

Antibodies (in the blood plasma):

B antibodies.

If there are A and Rh antigens but no B antigens, the antibodies in the blood plasma are B antibodies.

8 0

3 years ago

Read 2 more answers

Koalas are marsupials that are found in eastern Australia. Although their ancestors lived mostly on the ground, modern koalas sp

forsale [732]

The right option is the second option, which states "<span>fur color that closely matches the eucalyptus bark color</span>". Change is in the fur color of Koala's to match the bark color of eucalyptus tree is a structural adaptation that fits them for their habitat as tree-dwellers.

6 0

2 years ago

Read 2 more answers

7. The Galapagos finch species are an excellent example of

hoa [83]

The correct answer to this question is letter A. Speciation. <span>The Galapagos finch species are an excellent example of speciation. It was Charles Darwin himself who is responsible and made the start of the study in Genetics through his natural selection and survival of the fittest. Hope this helps answer your question.</span>

5 0

2 years ago