Answer:
Because proteins and lipid tails are free to move and are not bonded by strong interactions with each other.
Explanation:
The plasma membranes have two layers of phospholipids in which proteins are present. The hydrophobic fatty acid tails of phospholipid layers make the inner core of the membranes. However, the tails are not bonded to each other and make a fluid-like base in which proteins are present. Also, the membrane proteins are not bonded to the phospholipids and are free to change their position within the phospholipid leaflets. This is why the model is described as a fluid mosaic model.
Answer:
Each communicator part is located somewhere on the various beaches of your island. You'll know if you're near one, because a small jet of water will emerge from the sand. To find all five communicator parts, simply walk up and down the beaches of your isle, digging up every spot that has water emerging from it
In cellular respiration, oxygen acts as the final electron acceptor in aerobic respiration, while organic or inorganic molecules can serve as electron acceptors in anaerobic respiration and fermentation.
The molecules that serve as electron acceptors in cellular respiration play a crucial role in the generation of ATP. In aerobic respiration, the final electron acceptor is an oxygen molecule (O₂), which allows for the production of ATP by transferring high-energy electrons from NADH or FADH₂ through the electron transport chain (ETC). When insufficient oxygen is present, organisms must employ alternative mechanisms such as fermentation or anaerobic cellular respiration, whereby organic or inorganic molecules other than oxygen act as the final electron acceptors to regenerate NAD⁺ from NADH, allowing processes like glycolysis to continue.
In the absence of oxygen, some microorganisms, like methanogens and sulfur bacteria, perform anaerobic respiration using inorganic molecules like carbon dioxide and sulfate to regenerate NAD⁺. This process is critical for enabling energy conversion in environments where oxygen is scarce.
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hippocampus
cerebellum
brain stem
Answer:
D. Brain Stem
Explanation: