Cell Membrane Structure and Function

What do receptors do for a cell?:

(Proteins)They send messages to other cells pertaining on what to do and whatnot.

What is the cell membrane's structure?:

-Proteins and phospholipids -Cholesterol -Glycolipids -Glycoproteins

(Practice)Cell membrane Test?:

1.http://highered.mheducation.com/sites/0072421975/student_view0/chapter4/multiple_choice_quiz.html

What does Isotonic mean?:

Equal solute (in both solutions).

What is a lipid?:

Fat.

(Video) Goes in depth on receptor meditated endocytosis(must watch to fully understand mediated endocytosis)?:

1.https://www.youtube.com/watch?v=MWFt9hQFqXY

(Video)More in depth on how it passive and active transport works?:

1.https://www.youtube.com/watch?v=ovHYKlHYpyA

(Video)More in depth about phagocytosis and pinocytosis?:

1.https://www.youtube.com/watch?v=us8tmzCmhXI

What is cholesterol?:

A component of the cell membrane that allows the cell membrane to be fluid.

What is the structure of phospholipids?:

A component of the cell membrane that consist of hydrophilic head and hydrophobic tail that are attracted to water and allow the cell membrane to be semi permeable.

What do phosphilpids do?:

A part of the cell membrane and they allow certain molecules to enter and leave the cell.Particles pass through this part of the membrane.Double layer

What are Glycolipids?:

A part of the cell membrane is a carbohydrate attached to a lipid it,it is the cell marker(identifies what the cell is).

What are Glycoproteins?:

A part of the cell membrane.It is a protein with a carbohydrate attached to it.They help to recognize substances trying to enter the cell.

What does Hypotonic mean?:

Less solute (than other solution).

(Practice)Other notes on Cell membrane transport?:

1.http://living-environment-h-4a-.ryecityschools.rhs.schoolfusion.us/modules/locker/files/get_group_file.phtml?gid=5238821&fid=27085863&sessionid=7719bb85659e7cba6daf4da1d0ba7e4e

(Video)More in depth about signal transduction?:(You can't watch the whole video but just watching four minutes of it will give you an understanding of signal transduction)

1.http://study.com/academy/lesson/signal-reception-and-transduction-in-cells.html

(Practice)Test(s) on osmosis?:

1.http://www.bbc.co.uk/bitesize/quiz/q54972727 2.http://www.helpteaching.com/search/osmosis 3.https://www.biologycorner.com/worksheets/diffusion_osmosis_review_key.html(click on original document when you get their) 4.http://www.cbsd.org/cms/lib010/PA01916442/Centricity/Domain/1844/AP%20Biology%20Supporting%20Materials/Osmosis%20Practice%20Problems.pdf 5.http://www.cabarrus.k12.nc.us/cms/lib09/NC01910456/Centricity/Domain/7718/Osmosis%20Practice%20WS.pdf 6.http://ucvts.schoolwires.net/cms/lib5/NJ03001805/Centricity/Domain/274/Osmosis%20WS%20Answer%20Key.pdf

(Practice)Once again another cell membrane test?:

1.http://www.mhhe.com/cgi-bin/netquiz_get.pl?qfooter=/usr/web/home/mhhe/biosci/genbio/maderinquiry9/student/olc/quizzes/chap04fq.htm&afooter=/usr/web/home/mhhe/biosci/genbio/maderinquiry9/student/olc/quizzes/chap04fa.htm&test=/usr/web/home/mhhe/biosci/genbio/maderinquiry9/student/olc/quizzes/chap04q.txt&answers=/usr/web/home/mhhe/biosci/genbio/maderinquiry9/student/olc/quizzes/chap04a.txt

(Practice)(Site)Exocytosis Diagram?:(don't have to study)

1.http://www.purposegames.com/game/31ec679a32?nod=added

(Practice)Endocytosis Diagram?:(don't have to study)

1.http://www.purposegames.com/game/806f83be5e

What is the difference between active and passive transport 3 differences?:

Active transport requires ATP while passive transport does not.Active transport moves materials from a region of low concentration to high concentration,passive transport is from high concentration to low concentration.Active transport the movement of materials up the concentration gradient and passive transport is the transport of materials down the concentration gradient.Anything soluble is transported by passive transport and active transport transport's proteins,ions,large cells and sugars.

What is the structure of a glycoprotein?:

Carbohydrate chain+Protein

What is the structure of a glycolipid?:

Carbohydrate chain+lipid

What is facilitated diffusion?:

Diffusion(goes) through a protein from a concentration gradient of high to low.Uses no ATP.Has large or charged molecules.

Where does water move from in osmosis?:

From High to low water concentrations.

What part of the cell membrane acts as a cell receptor?:

Glycoproteins.

What are phospholipids head's named and what do they do?:

Hydrophillic heads are attracted to water protect the hydrophobic tails from water.

What are phospholipid tail's named do and what do they do?:

Hydrophobic tails are not attracted to water and they are inside the phosholipid bi layer

Remember these terms for osmosis?:

In reference to another solution.

What are receptors?:

Molecules that could be proteins in the cell membrane that recognize other molecules that can enter the cell.

What does Hypertonic mean?:

More solute (than other solution).

What does exocytosis do?:

Moves materials out of the cell in a vesicle.

Why do some materials go though a lipid and not a protein?:

Only soluble materials and smaller molecules can go through a lipid because proteins don't allow small molecules in they only let in big materials like sugars or ions.

Is osmosis a type of passive or active transport?:

Osmosis is a type of passive transport

What are the two types of endocytosis?:

Phagocytosis and pinocytosis.

Functions of proteins in cell membrane?:

Reception,Adhesion,Transport,Cell recognition,Enzyme Action,attachment to cytoskeleon

What is receptor mediated endocytosis?:

Receptor mediated endocytosis is an endocytotic mechanism in which specific molecules are ingested into the cell.

What does endocytosis do?:

Substances entering the cell or taking in of material in a vesicle.

What happens to a cell in distilled water?:

The cell expands.

What happens to a cell in salt water?:

The cell shrinks.

What is osmosis? (Remember the terms for osmosis in reference to another solution)

The diffusion of water across a membrane due to concentration differences.

What is bulk transport?:

The movement of macromolecules such as proteins or polysaccharides into or out of the cell is called bulk transport. There are two types of bulk transport, exocytosis and endocytosis.

What is active transport?

The movement of materials across a semi permeable cell membrane from a region of low concentration to a region of high concentration with the use of ATP(energy)Proteins in the cell membrane are involved.

What is passive transport?:(Simple diffusion)

The movement of materials from high concentration to low concentration without the use of ATP(energy).

Why is their a double bi layer of phosholipids?:

They form a double bi layer to protect the tails from getting water on them on all sides.

Functions of the cell membrane?:

To protect the cell from its surroundings.It also recognizes certain chemicals and molecules that can or can't go into the cell.

What is pinocytosis?:

When the cell swallows a liquid material.

What is phagocytosis?:

When the cell swallows a solid material.

(Practice)Another cell membrane test?:

1.https://www.khanacademy.org/test-prep/mcat/cells/cell-membrane-overview/e/cell-membrane-questions

(Practice)Cell membrane structure quiz?:(must study)

1.http://www.purposegames.com/game/the-cell-membrane-quiz

(Video) Goes in depth on the process of endocytosis and excocytosis?:

1.https://www.youtube.com/watch?v=DuDmvlbpjHQ

(Video)More in depth about osmosis?:

1.https://www.youtube.com/watch?v=IaZ8MtF3C6M