An amphipathic molecule is a molecule that contains both polar and nonpolar regions, thereby having hydrophilic and hydrophobic properties. Phospholipids are examples of amphipathic molecules.
- In consequence, in an amphipathic molecule:
C. Part of the molecule is hydrophobic (water-repelling).
D. Part of the molecule is hydrophilic (water-loving).
- For example, phospholipids are amphipathic molecules because their phosphate heads interact with water molecules and fatty acids do not interact with water.
- In phospholipids, phosphate heads interact with water molecules due to because of their charge.
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I think it’s either the first or last one
<span> A. domain, kingdom, phylum, class, family, order, genus, species </span>
Answer:
Mitochondria and chloroplasts are much larger than prokaryotic cells.
Explanation:
According to the Endosymbiotic theory, all the components of eukaryotic cells were once individual prokaryotic cells which were able to function on their own.
The mitochondria was independent enough to perform aerobic respiration and produce energy and the chloroplasts were able to independently convert the energy from the Sun to the chemical energy through the process of photosynthesis.
Later, these cells were engulfed by a single cell and these prokaryotes combined to form a eukaryote that was capable of performing all the functions that the independent cells could.
So, the mitochondria and chloroplasts were able to reproduce on their own, had their own ribosomes and had DNA resembling that of bacteria as they were prokaryotic in nature.
However, mitochondria and chloroplasts could not be larger than the prokaryotic cells to support the endosymbiotic theory.
This is because in order to establish a relationship between the bacteria and the mitochondria and chloroplasts, and for these organelles to have developed from bacteria as their ancestors, they must have sizes comparable to bacteria and other prokaryotes.
At the same time, size in itself is not enough evidence to support origin of these organelles from the bacteria.
