Answer:
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).
Explanation:
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.
- <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest.
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- <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels.
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- <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>
Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.
Learn more:
Simple diffusion and active transport brainly.com/question/6420224
Answer:
1. respiración
2. ATP
3. aeróbico
4. fermentación
5. respiración anaeróbica
Explicación:
La energía se produce en forma de trifosfato de adenina por la descomposición de moléculas de alimentos como la glucosa, etc. en un proceso de respiración. Hay dos tipos de respiración i. mi. respiración aeróbica y anaeróbica. En la respiración aeróbica, se produce más ATP en presencia de la molécula de oxígeno, mientras que en la respiración anaeróbica, se produce menos ATP cuando no hay oxígeno. La respiración es el proceso que ayuda a la disponibilidad de oxígeno para la producción de energía.
Answer: (Smallest = left) (Largest = right)
Individual = community = population = biome = biosphere = ecosystem
It’s important there’s molecules that could do so for keeping homeostasis, food movement, keeping the cell isotonic with movement of water, glucose to go into cell to not let it starve and waste to escape and not build up in cell
A biome is a large community of plants and animals that is in a area with a distinct reagion. There are 5 types of biomes worldwide. These are aquatic, desert,forest, grassland, and tundra. Hope this helps
