The blood-brain barrier requires special transporters to move amino acids and vitamins into the brain.
- The BBB divides membrane transport proteins into two groups: uptake transporters and efflux transporters.
- Multiple uptake transporters at the BBB are in charge of moving solutes from the bloodstream into the endothelial cells, where they eventually pass through the basolateral membrane into the brain.
- Passive yet saturable GLUT1 transporters that are present in both the luminal and abluminal membranes of endothelial cells mediate glucose transport across the blood-brain barrier.
- Abstract. AATs are membrane-bound transport proteins that facilitate the entry and exit of amino acids from cells or cellular organelles. AATs play a variety of physiological roles in intracellular energy metabolism, anabolic and catabolic processes, acid-base balance, neurotransmission, and other areas.
To learn more about transporters.
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Answer:
B. From 200 m to the surface
Explanation:
Photosynthesis is a process which is light-dependent. Therefore, regions where light availability is not sufficient or event absent will not support photosynthesis.
In the oceans, light availability decreases with increasing depth. Below, a certain depth in the ocean, light availability becomes insufficient to support photosynthesis and this is usually below 200 m. The uppermost region of the ocean from 200 m to the surface of the ocean is sufficiently illuminated to permit photosynthesis by phytoplankton and plants. This region is called the euphotic zone.
Therefore, from the attached image, the correct option is B, since it represents the euphotic zone of the ocean.
Answer:
i need awnsrer for this question
Explanation:
Answer:
To reduce loss of water through transpiration leaves of cactus plants are modified into spines.
Explanation:
Answer: <u>Fungi
</u>
Explanation:
Organisms with the capacity to breathe anaerobically and aerobically are typically called obligate anaerobes. Obligate anaerobes are usually microorganisms- microscopic organisms.
Since the organism described is land-dwelling, chitinous and eukaryotic (containing a plasma membrane enveloped nucleus), they are most likely fungi. Chitin is a rigid, non-soluble carbohydrate utilized for structural purposes. Typically these organisms have strong, insoluble cell walls, are multi-cellular and can form filamentous networks of hyphae.
They create a tangled network of mycelia and may be:
- Septate, with walls between every cell or
- Aseptate without walls
