e main aseussion board page displays a list of forums within your course. A foru
ID: 143990 • Letter: E
Question
e main aseussion board page displays a list of forums within your course. A forun can discuss a topic or a group ofrelated topics. Within a forum, you'll find threa ude an initial post and all replies to it. Ifyour instructor allows, you can create t tin forums to encourage conversation about topies relevant to your course. Mos Total Unre Posts Post Description sion #1-1. Suppose two individuals have a 4 cm3 benign O (noncancerous) tumors that produces symptoms because they occupy space and crowd neighboring organs. If patient A has a tumor in her thoracic cavity and patient B in the abdominopelvic cavity, which patient will be likely to develop symptoms first? Explain what organs could be affected by the tumors 2. There is a claim that lycopene, the reddish substance in tomatoes and peppers, is of value in protecting people from Alzheimer Disease. How would you, as a scientist, go about substantiating or refuting this suggestion? 3. Ground sloths are extinct North American relatives of the Central and South American tree sloth species. The living, tropical species are arboreal and eat leaves. What anatomical differences might you expect in the two groups? 4. How would you prove to someone that a plant was alive? 5. Human red blood cells or erythrocytes (primarily carriers of oxygen to tissues) are among the smallest in the body. Why is it advantageous that they are so small? 6. Why are fat-soluble toxins more rapidly taken in through diffusion than water-soluble poisons? 7. What diseases and abnormal conditions might a psldiscussionboard/dolconference?toggle mode-read&action-list forums&course id- 16Explanation / Answer
1 ans: The patient with the thoracic cavity would devlop symptoms first.but sometimes benign tumours can be serious if they press on vital structures such as blood vessels or nerves.
4. Ans:
first i need to define "ALIVE"
a living organism does 7 life process
movement,respirate,sensitive,reprodue,grow,excrete&nutrition
plants do all processes.
5 ans:
The size of red blood cells are small,because smaller size increses the ration of surface area to volume and the oxygen has to diffuses the surface of the cell.Now the cell cannot be much smaller than that,because it would result in leakage through the walls of capillaries would mess up filtration membranes in kidneys and like that.
6 ans:
Due to their ability for passive transfer.water soluble poisions they do not have this ability.
Fat soluble molecules such as steroids,alcohols and some vitamis(A,D,E,K),can dissolve in lipid portion of the membrane which is how they diffuse and into and out of the cell.
water soluble molecules,however,can not pass through the hydrophobic middle portion of the phospholipid bilayer.
7 ans:
primary ciliary dyskinesia is a disorder characterized by chronic respiratory tract infections.
abnormally positioned internal organs and the ability to have children(infertility).the signs and symptoms caused by abnormal cilia.
8 Ans:
Mitochondria is a part of cells generate energy by turning nutrients and oxygen into fuel for the body.muscle cells need this ability more because they constantly working.Fat cells do not need it as much.
synthesis of ATP from ADP and Phosphates.
9 Ans:
this procoess is called diffusion.cell did not use any energy to move.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.