Facilated diffusion only works from high to low concentration. A transport protein binds to the substance on one side of the cell membrane and then releases it on the other side. ACTIVE TRANSPORT involves the transport of molecules from regions of low concentration to regions of high concentration.

6 0

3 years ago

Read 2 more answers

Bone contains living cells and organic matter such as collagen, protein, and polysaccharides. However, much of the volume of bon

NARA [144]

Answer:

Mostly from the food

Explanation:

Dietary intake is an important factor for bone formation and bone health. Consequently, inadequate intake of nutrients and minerals might increase the risk for bone loss and even osteoporosis.

Calcium can be found in food such as brokolli, milk, spinach, mustard greens,, turnip greens, kale.. Magnesium, which is necessary for absorption and transport of calcium is found in almonds, peanuts, cashews..

8 0

4 years ago

John had $20. He earned $5, spent $10, earned $5 again, and then spent $3. After this series of earnings and expenses, how much

Kamila [148]

John had $17 dollars left

5 0

3 years ago