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Anton [14]
3 years ago
14

What are cross cutting concept(s

Biology
1 answer:
vodomira [7]3 years ago
4 0
Crosscutting concepts have application across all domains of science. As such, they are a way of linking the different domains of science. They include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.
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Active transport and facilitied diffusion relation
statuscvo [17]

Answer:

Both facilitated diffusion and active transport are selective processes. Only selective molecules are allowed to cross the membrane. They utilize carrier proteins to move across the membrane.

Explanation:

Diffusion is the process by which molecules move across a membrane respective of the concentration gradient. The plasma membrane is a <em>selectively permeable membrane</em> which allows specific molecules to move across the concentration gradient.  

Molecules migrate from a region of higher concentration to a lower concentration in case of diffusion. It can be classified into simple diffusion and facilitated diffusion. These are examples of <em>passive transport</em>.

In facilitated diffusion molecules move across the concentration gradient with the help of <em>carrier proteins or channel proteins</em>. The carrier proteins bind to the molecule which has to be transported and change conformation to allow it to cross the membrane. For example glucose molecule is carried across through <em>GLUT transporter</em>. <em>Channel proteins</em> open a channel inside the membrane and molecules get transported across the gradient.

Active transport carries molecules against the concentration gradient with the assist of energy. ATP hydrolysis is utilized to generate energy. As a result of active transport, the molecules are aggregated on one side of the membrane.

7 0
3 years ago
A scientist studied four fossils of a marine mammal dating back to 50 million years, 45 million years, 40 million years, and 30
Anastasy [175]
The 30 million years ago, because its the  closest one to us. Wait is there a picture to it ?
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Science: This Question is about Weather and Climate.​
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Identify 3 parts of your body that are formed from specialized cells or tissues. What makes those cells unique?
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Answer:

Nerve cells, blood cells, and reproductive cells

Explanation:

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