Answer:
1. myosin ATPase
2. Ca2+-ATPase
Explanation:
ATPase activity of myosin head hydrolysis ATP and energize the myosin head. The energized myosin head forms cross bridges to facilitate the power stroke of muscle contraction. The fast-twitch oxidative-glycolytic fibers have the ability to produce ATP by aerobic respiration.
These fibers have the ATPase in their myosin heads that hydrolyze ATP three to five times faster than the myosin ATPase in slow fibers. This ensures the faster speed of contraction of these fast-twitch muscle fibers.
During their relaxation, Ca2+ ATPase pumps the calcium ions back to the sarcoplasmic reticulum. As the level of Ca2+ ions in the sarcoplasm decreases, calcium ions are released from troponin. Tropomyosin is allowed to cover the myosin-binding sites on actin and the muscle fiber relaxes faster.
Answer: they all have a nucleus
Explanation:
Unlike prokaryotes, the dna is neatly inside the nucleus and not scarttered around, The types of eukaryotes are plant and animal cells
Iron is a key component of hemoglobin. Hemoglobin the the protein responsible for transporting oxygen uses iron to bond oxygen. Additionally Hemoglobin is a key component of RBC (erythrocytes)... If iron is deficit the body is not able to produce red blood cells and it can result in iron deficient anemia.
Answer:
50
Explanation:
A woman who is a carrier has: a 25% (one in four) chance of having a daughter who is a carrier. a 25% chance of having a son with hemophilia. and a 50% chance of having a child (boy or girl) who does not have the gene for hemophilia at all (Figure 2.5)
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