Why have orthodontic problems arisen in recent homo sapiens?

1 answer:

7 0

The orthodontic problems have risen in recent homo sapiens because of the shift from hard foods to soft ones. This has resulted to a generally shorter and rounder cranial vault together with a smaller face and smaller jaws. The bone supporting the teeth decreased in size faster than the teeth decreased. This has resulted more orthodontics issues that require artificial straightening of teeth.

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Semmy [17]

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Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi

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The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

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The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

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In second place, there would be the Na⁺ ions -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels.
The glucose molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

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Simple diffusion and active transport brainly.com/question/6420224

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If we found a way to repair a single cell with the DMD gene in a 2-year old child, could we cure DMD by repairing that single ce

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