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ValentinkaMS [17]
3 years ago
10

20. Does facilitated diffusion require energy for the cell?

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
6 0

Answer: no

Explanation: The solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. This process is called passive transport or facilitated diffusion, and does not require energy.

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What type of membrane provides lubrication to the pleural, pericardial, and peritoneal cavities?
jenyasd209 [6]

Answer;

-Serous membrane

Explanation;

-Serous membranes are thin membranes that lines the internal body cavities and organs such as the heart, lungs, and abdominal cavity. The thin membrane is made up of mesothelium tissue which originates from the mesoderm.

-These membranes consists of a single layer of flattened mesothelial cells applied to the surface of a thin layer of collagenous tissue that attaches to underlying endothoracic/transversalis fascia. They function to preclude adhesions among organs, thereby allowing organs to move freely relative to one another.

6 0
3 years ago
Major gene reshuffling takes place during what phase of meiosis?
ExtremeBDS [4]
The answer is prophase of meiosis I.

Meiosis is a reducing cell division during which the number of chromosomes is reduced by half in the daughter cells. It consists of meiosis I and meiosis II. Major gene reshuffling takes place during meiosis I. This exchange of genetic material between homologous chromosomes is known as the crossover. Homologous chromosomes are present only in the meiosis I. They pair up during prophase of meiosis I. When they are paired up during prophase I, it is obviously that gene reshuffling takes place during prophase I.
6 0
3 years ago
What is the definition of muscle tissue?
WINSTONCH [101]
Muscle tissue is a soft tissue that composes muscles in animal bodies, and gives rise to muscles' ability to contract. This is opposed to other components or tissues in muscle such as tendons or perimysium. It is formed during embryonic development through a process known as myogenesis.
3 0
3 years ago
Witch is greater -4 or -6
netineya [11]

Answer:

-4 is greater than -6 because it's closer to being a positive number than -6 is

3 0
3 years ago
Read 2 more answers
The mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 mc024-1.jpg 1023.
marin [14]
The mass of one atom of carbon in the correct number of significant figures is 1.99×10-²³. There are four significant figures each in both the atomic mass of carbon (12.01 g) and Avogadro's number, so the answer must also have 4 significant figures. The operation is shown below:

<span>12.01 / (6.022x10²³) = 1.994x10</span>₋²³<u />
5 0
3 years ago
Read 2 more answers
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