Answer:
C) substitutions that reduce the affinity of hemoglobin for oxygen
Explanation:
Heinz bodies are inclusions in the eritrocite, filled by denaturalized globin (protein part of the hemoglobin). Hemoglobin is formed by 4 globin subunits (2 alpha chains and 2 beta chains) plus a heme group. The latter, is responsible for oxygen binding.
The denaturalization of the globin is caused by substitutions that do not allow the protein to fold properly and bind the heme group accordingly. This is the cause of the Heinz bodies in the eritrocite. Therefore, this is a structural problem that impedes the protein to fold into a functional protein and has nothing to do with hemoglobin having less affinity for oxygen. In the last mentioned case, the protein is still functional but poorly binds oxygen, hence, does not for Heinz bodies.
<h3>Question:</h3>
<em>which type of skeletal muscle fiber is most important for an athlete running a 40 meter sprint</em><em>?</em>
<h3>Answer</h3>
<em>F</em><em>a</em><em>s</em><em>t</em><em> </em><em>t</em><em>w</em><em>i</em><em>t</em><em>c</em><em>h</em><em> </em><em>f</em><em>i</em><em>b</em><em>r</em><em>e</em><em>s</em><em>.</em>
Answer:
good and yes I agree we need positivity
Explanation:
Most of the benefits of exercise and activity diminish within two weeks of substantially decreased physical activity
Answer:
The correct answer is option E. only water-soluble hormones use second messengers.
Explanation:
Water soluble hormones can not diffuse through cell membranes as only lipid soluble molecules can pass through the cell membranes and these hormons are not lipid soluble molecules,
These water hormones are usually glycoproteins, peptide and catecholamnies such as TSH, FSH, LH and insulin. these hormones need second messengers because there receptors are present on the plasma membrane.
Thus, the correct answer is option - e. only water-soluble hormones use second messengers.
