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Antioxidants
Cells combine to form tissue. Tissues are groups of cells with the materials
surrounding them that work together to perform a particular function. (Epithelial,
,connective, muscular and nervous tissue)
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Tissue Level
12 pairs of nerves that pass through various foramina in the bones of the cranium and
arise from the brain inside the cranial cavity
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cranial nerves
Growth from within the tissue. The cartilage increases rapidly in size due to the
division of existing chondrocytes and the continuous deposition of increasing
amounts of extracellular matrix by the chondrocytes.
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Interstitial growth
Energy stored in a Sodium or Hydrogen concentration gradient is used to drive other
substances across the membrane against their own concentration gradients.
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Secondary active transport
,Transport of materials across a cell by endocytosis on the side of the exocytosis on
the other, moving the payload across the inside in a vesicle.
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Transcytosis
peach fuzz hairs
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Vellus hairs
The difference in the concentration of a chemicl from one place to another.
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Concentration gradient
A sugary coat on the membrane that acts like a molecular signature, enables cells to
adhere to one another in some tissues, protects cells from being digested, is
hydrophilic creating a water film on cell surfaces and prevents the drying out of cells.
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, Glycocalyx
Consists of a dense network of collagen fibers and elastic fibers firmly embedded in
chondroitin sulfate, a gel-like component of the ground substance. Can endure
considerably more stress than loose and dense connective tissues. Strength is due to
its collagen fibers.
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Cartilage
1. From creatine phosphate
2. by anaerobic cellular respiration
3. by aerobic cellular respiration
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ATP production
1. Form ion channels
2. Act as carriers (transporters)
3. Act as receptors (ligand)
4. Act as enzymes
5. Act as linkers
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