In most mammals, hemoglobin consists of 4 distinct subunits. These subunits consist of an aminoacid chain (aminoacids are the building blocks of proteins) and a heme group. 2 of the subunits have a protein chain with a-structure and 2 have a protein chain with beta structure. The heme groups give hemoglobin and thus blood its red color. Each of these groups has a positively charged iron ion in its core. Iron is necessary so that hemoglobin can bind oxygen and transfer it through the blood flow to the tissues. Given the above exposition, the correct answers are: 4, alpha proteins, heme, iron, oxygen.
Bonus: Hemoglobin is an important example of protein structure since it shows that not only aminoacid order (secondary structure) and configuration of protein chains (tertiary structure) are crucial to the function of a protein; how the multiple chains bind to each other is equally critical (quaternary structure).
Failure to launch refers to a syndrome wherein some children fail to leave home by age by the age of 30.
<h3>What is Failure to Launch Syndrome?</h3>
Failure to Launch syndrome refers to the inability of young adults to become self-sufficient and taking on adult responsibilities.
Failure to Launch is usually determined by the Age of 30. This limits a persons participation in life because such an individual may be unable to do things or survive alone.
There are a lot of factors that may be responsible for failure to launch. some of these factors may emanate from the child's physical and social environment.
Some other factors that may lead to failure to launch include;
- Mental health Factor
- Parenting styles
- Family experience
- Parent-child relationship
Learn more about Adult responsibilities at brainly.com/question/17225727
#SPJ1
The cell membrane is selectively permeable.
Answer: Osmosis is just one type of passive transport.
Explanation:
