False
But eukaryotic cells that specialize in producing protein tend to have greater number of protein
Answer:
monoclonal antibodies
Explanation:
Monoclonal antibodies are antibodies that are made by identical immune cells which are all clones of a unique parent cell.
Monoclonal antibodies can be isolated such that they will be able to only recognize a unique epitope, this makes them to be suitable for determining the expression one or two identical sequenced proteins. Monoclonal antibodies technique is one of the most effective chromatography techniques.
Polyclonal antibodies contain different epitopes on a protein, hence suitable for protein identification but not suitable for determining the expression of one or two identically sequenced proteins.
Though the skeletal muscle cells are of different sizes and shapes, the main components of a skeletal muscle cell remain the same. The skeletal muscle is enveloped by a layer of connective tissue called epimysium, it protects the muscles from friction against the bones and other muscles.
The skeletal muscles are also covered by a fibrous connective tissue called endomysium that insulates each muscle fiber. Underneath the endomysium is the sarcolemma that is the cell membrane of the fibers and underneath that is the sarcoplasm that is the cytoplasm of the cell.
Each muscle fiber also comprises cylindrical organelles called myofibrils. Each muscle fiber comprises hundreds to thousands of myofibrils. The myofibrils are the bundles of myosin and actin proteins that go through the length of the muscle fiber and plays an essential role in the contraction of muscles.
The myofibrils are surrounded by a network of tubules and channels known as the sarcoplasmic reticulum, which is stored with calcium and is essential for the contraction of muscles. Each myofibril can be further dissociated into functional repeating segments known as sarcomeres.
Answer:
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Explanation:
Answer:
The answer is d. 3,4,2,1,5
Explanation:
The correct sequence is:
- Antigens from a pathogen bind to antigen receptors on Lymphocytes.
- Lymphocyte specific to antigens from a pathogen become numerous.
- Lymphocytes secrete antibodies
- Pathogen is destroyed.
- Only memory cells remain.
Adaptive Immune System/Acquired Immunity:
Adaptive immune system involves the part of immune system that is contains specific and highly specialized cells to target specific pathogens. Acquired immunity involves antigen specific antibodies that bind and mark a specific pathogen. This pathogen is then cytotoxically destroyed by specific effector cells of the immune system. Acquired immunity is also characterized by the production of memory cells at the time of mass production of antigen specific antibodies. These memory cells remain long after the pathogen has been destroyed to protect against consequent attacks from the same pathogen.
