Which of the following phrases best defines something that is hydrophobic? - answer-a substance that does not mix with water
Which parts of a phospholipid are hydrophobic/ hydrophilic? - answer-
If you were to throw many phospholipids into an aqueous solution, which of the following would you...
Anatomy and Physiology Chapter 3
Which of the following phrases best defines something that is hydrophobic? -
answer-a substance that does not mix with water
Which parts of a phospholipid are hydrophobic/ hydrophilic? - answer-
If you were to throw many phospholipids into an aqueous solution, which of
the following would you observe? - answer-phosphate heads and lipid tails
would orient away from each other, with the phosphate heads facing either
the extracellular or intracellular fluid and the tails facing each other
Bilayer - answer-two rows of phospholipids that form a sheet with tails facing
each other and heads on either side facing the aqueous solution
Micelles - answer-droplets of phospholipids containing a lipid core/center
Liposomes - answer-a double membrane droplet containing proteins along
the center and an aqueous core
What are the parts of the phospholipid bilayer? - answer-
What describes the function of membrane proteins? - answer-to serve as a
channel for the transport of molecules between extracellular and intracellular
fluid; to provide structural stability for the cell; to allow for cell-cell
communication; to combine with a carbohydrate, providing an immune
response and/or cell recognition
You find a cell lacks transmembrane proteins. Which loss of function would
you expect to observe in this cell? - answer-an inability to transport ions,
nutrients, and other substances across the membrane
What is the importance of having routine pap tests? - answer-to screen for
potentially cancerous cells
Which of the following statements best describes cancer? - answer-it is a
rapid division and growth of cells that do not differentiate into specialized
cells
Megan goes in to see her oncologist. He tells her that the cancer is no longer
isolated to her ovaries but has moved to her lungs, digestive organs, and
lymph nodes. What is this condition defined as? - answer-metastasis
[Type here]
, 1
1
If you are a cytologist screening for cancerous cells in a pap smear sample,
what would you be looking for? - answer-large cells with big nuclei and a
small amount of cytoplasm
Upon looking at a tissue sample, you see all the signs indicative of epithelial
cell dysplasia. Can you conclude with certainty that the sample is cancerous?
- answer-no, trauma as well as HPV infections can cause cellular
abnormalities, which are not necessarily cancerous
Which two fluid compartments make up the extracellular fluid? - answer-
plasma and interstitial fluid
Which cytoskeletal protein allows for intracellular transport of organelles? -
answer-tubulin
What are the parts in a cell? - answer-
The space that is surrounded by the tissue wall of hollow organs is known as
the - answer-lumen
The lumen of a hollow organ such as the stomach is considered to be part of
the ________ environment - answer-external
The fluid substance of blood is called - answer-plasma
Define interstitial fluid, indicating whether it is inside or outside cells
(intracellular or extracellular) - answer-interstitial fluid is extracellular fluid
outside the circulatory system and the cells
Which of the following is a membrane lipid? - answer-cholesterol,
phospholipids, sphingolipids
A liposome is - answer-an additive to creams and lotions and a drug-delivery
vehicle
If the adrenal cortex produces lipid based hormones such as aldosterone,
which organelle would be higher in cells of the adrenal cortex than in the
adrenal medulla? - answer-smooth endoplasmic reticulum
________ proteins extend all the way across the cell membrane. - answer-
transmembrane
[Type here]
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TOPDOCTOR. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
