Cell membrane and its structure and function Flashcards
It is a membrane made of two layers of
phospholipids with embedded
proteins that separates the insides of
the cell from its environment.
Cell membrane
This is a group of inorganic
compounds that are insoluble in
water
Lipids
Fats, Waxes, Oils, and
Hormones is an example of what compound?
Lipids
It is a two-layered arrangement of phosphate and lipid molecules that form a cell membrane.
Phospholipid bilayer
Name the parts of the phospholipid
Hydrophilic head
Hydrophobic tails
Phosphate
Glycerol
Saturated and unsaturated fatty acid
___ molecule means having both hydrophilic and hydrophobic parts
Amphipathic molecule
It allows certain substances to pass through but not others
Semi-permeability
It is easily bent
Pliable
It is able to flow
Fluid
These biomolecules are made
up of building blocks called
amino acids joined by peptide
bonds
Proteins
What are the two types of protein?
Integral and peripheral
It is a type of protein that is not permanently embedded on the membrane
Peripheral
It is a type of protein that is permanently embedded on the membrane
Integral
What are the two types of integral protein?
Monotropic and polytropic
It is a type of an integral protein that is spread across the membrane
Polytropic
It is a type of an integral protein that is only attached to the one side of the membrane
Monotropic
Determine the biomolecule:
Its function is:
- receptor
- channel
- transmembrane
transport
- adhesion
- cell-cell recognition
- enzymatic function
Determine the biomolecule
Protein
Carbon, Hydrogen, and
Oxygen. Sugar, starches, and fiber are some of its examples.What kind of biomolecule that is made up of this?
Carbohydrates
Carbohydrate is mostly found on the___ ?
external surface
What are the two types of carbohydrates?
Glycolipid (attached to lipids)
Glycoprotein (attached to protein)
What are the functions of the carbohydrates?
Forms distinctive
cellular markers
cell-cell recognition
cell-pathogen
interaction
It is a type of lipid that is waxy that is found in cells.
Cholesterol
It is essential in
the production of other
biomolecules like hormones,
steroids, and vitamin D
Cholesterol
Regulates the fluidity of
the membrane as
temperature varies.
High temperature ___ fluidity
Low temperature___
fluidity
Decreases and Increases
What do you call the structure of the cell membrane?
Fluid mosaic model
Determine the function:
It serves as a barrier that separates the
component of the cell from its surrounding
environment.
Protection
Determine the function:
It is a semi-permeable membrane that regulates
the transport of materials in and out of the cell.
Material transport
Determine the function:
It serves as the attachment point of the
cytoskeleton which aids in maintaining the
shape and form of a cell.
Cell shape
Determine the function:
It separates the organelles from each other and
from the cytoplasm providing their own
Compartmentalization
Determine the function:
It enables cells to identify other cells and foreign
substances.
Cell recognition
Determine the function:
It plays a vital role in the performance of the
cell’s function (ex: locomotion, absorption,
impulse transmission)
Cell function
