The correct answer is:
facilitated diffusion. Glucose and amino acids move in or out if a cell by facilitated diffusion. Facilitated diffusion is the passive transport of molecules, ions, and particles towards a specific membranous protein.
Explanation:
Facilitated diffusion is the means of spontaneous passive transport of molecules or ions crossed a biological membrane through distinct transmembrane integral proteins. In the cell, examples of molecules that necessity uses expedited diffusion to move in and out of the cell membrane are glucose, sodium ions, and potassium ions. They pass using carrier proteins through the cell membrane without power near the concentration gradient.
prop the trees up above the water line
b.
excrete excess salt
c.
absorb carbon dioxide from the air
d.
none of the above
Correct answer: A). Prop the trees up above the water line
Mangrove pneumatophore is the specialized root structures that are known to grow out of the water surface and help in the respiration of mangrove plants. They allow the collect oxygen from the atmosphere.
It mainly grows in mud and there the conditions are anaerobic means lack of oxygen. Oxygen is necessary for their survival that is done by the mangrove pneumatophore roots.
Hence, the correct answer would be option A.
Mangrove pneumatophore roots mainly prop the trees up above the water line to intake necessary oxygen from the air for survival, but they do not practically absorb carbon dioxide from the air.
Mangrove pneumatophore roots have a distinctive function in the survival of Mangrove trees in their saline, oxygen-poor environments. The correct answer to your question is that mangrove pneumatophore roots indeed prop the trees up above the water line (option a). These roots emerge from the water, allowing Mangrove trees to intake the necessary oxygen for survival. While they also partake in the limited excretion of excess salt, their main function is undeniably oxygen absorption from the air and supporting their physical structure.
However, the roots do not absorb carbon dioxide from the air (option c). Thus, although options a and b reflect partial truth, option a accurately captures the characteristic function of pneumatophore roots.
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b. large intestine.
c. stomach lining.
d. lungs.
The nucleus is often considered to be the cell's control center. 2. The cytoplasm consists of everything inside the plasma membrane of the cell. 3. The plasma membrane forms a barrier between the inside and outside of the cell. 4. The cytoskeleton is essentially a "skeleton" inside the cell. 5. The rough endoplasmic reticulum is covered with ribosomes. 6. Lysosomes use enzymes to break down foreign matter and dead cells. 7. Plant cells specifically have a cell wall, a large central vacuole, and chloroplasts.
1. The nucleus
The nucleus is often considered to be the cell's control center. It contains the cell's genetic material and directs the cell's activities.
2. The cytoplasm
The cytoplasm consists of everything inside the plasma membrane of the cell. It contains various Organelles and provides a medium for cellular processes.
3. The selectively permeable barrier
The plasma membrane forms a selectively permeable barrier between the inside and outside of the cell. It controls the movement of substances into and out of the cell.
4. The cytoskeleton
The cytoskeleton is essentially a "skeleton" inside the cell. It provides shape, structure, and support to the cell.
5. Ribosomes
The rough endoplasmic reticulum is covered with ribosomes. Ribosomes are responsible for protein synthesis.
6. Enzymes
Lysosomes use enzymes to break down foreign matter and dead cells. They are involved in cell digestion and waste disposal.
7. Plant
Plant cells specifically have a cell wall, a large central vacuole, and chloroplasts.
The cell wall provides structural support, the central vacuole stores water and nutrients, and chloroplasts are involved in photosynthesis.
Learn more about Organelles here:
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