Answer the following questions true (T) or false (F)
1. The cytosol and intracellular fluid (ICF) both refer to the fluid portion of the cytoplasm.
2. The fluid mosaic model defines the plasma membrane as a structure composed of multiple components, including the phospholipid bilayer, proteins, carbohydrates, and other lipids that exist in a dynamic arrangement.
3. During osmosis, the solvent moves across a selectively permeable membrane from a solution with a higher solute concentration to a solution with a lower solute concentration.
1. TRUE
2. TRUE
3. FALSE
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Discuss the corpus luteum of pregnancy
What will be an ideal response?
Are chemoreceptors more sensitive to blood CO2 levels or blood O2 levels?
A) blood CO2 levels B) blood O2 levels
A young man is cleaning his ear by sliding a cotton swab into the external acoustic meatus as far as he can. He is met with some resistance and, thinking the swab has hit earwax, he pushes harder. He feels a sharp, extreme pain. After the initial shock, he notices that all he can hear from that ear is a constant ringing and nothing else. What damage has he most likely done to the ear?
A. He pushed and damaged the stapes. B. He has pushed and torn the tympanic membrane. C. He has broken the skin of the external acoustic meatus and the blood is causing the ringing. D. He has pushed and torn the oval window.
Which organ produces a hormone that promotes maturation of T cells?
a) Spleen b) Lymph node c) Red bone marrow d) Thymus e) Pancreas