Lesson 1: cell (pt. 2)

plasma membrane

Phospholipid bilayer containing cholesterol and proteins and some carbohydrates

cell membrane, plasmalemma

what is the other term for plasma membrane?

plasma membrane

forms a selectively permeable boundary of the cell.

plasma membrane

Acts as a physical barrier to enclose cell contents

plasma membrane

regulates material movement into and out of the cell

plasma membrane

functions in cell communication

plasma membrane

keep constant the ion content of cytoplasm, which differs from that of the extracellular fluid; sodium, potassium, chloride

nucleus

It is enclosed within a double membrane called nuclear envelope; contains nucleolus

nucleolus

It consists of RNA and proteins which functions in ribosomal unit assembly.

nucleoplasm

It surrounds the chromatin and the nucleoli.

nucleus

It contains the DNA that serves as the genetic material for directing protein synthesis.

cytoplasm

This can be seen between the plasma membrane and the nucleus where the other cellular elements are embedded.

organelles

are membrane-bound structures which carry out specific metabolic activities of the cell.

cytosol

provides support for organelles and serves as the viscous fluid medium.

viscous fluid medium

cytosol provides support for organelles and serves as the ????

inclusions

are non-membranous particles or granules suspended in the cytosol.

cytoplasm

It is responsible for various cellular processes.

nucleus

most prominent organelle in cell

nucleus

the command center of the cell because thus where the DNA is

mitochondria

Double-membrane-bound organelles containing a circular strand of DNA

mitochondria outer membrane

is highly permeable to small molecules, due to the presence of a pore-forming protein called porin.

mitochondria intermembrane

contains many proteins that participate in oxidative phosphorylation.

mitochondria inner membrane

has multiple folds projecting inwards, called cristae.

mitochondria

It is responsible for the production of energy in the form of ATP

rough er

Extensive interconnected membrane network that varies in shape; ribosomes attached on the cytoplasmic surfaces

ribosomes

are involved in the protein synthesis.

rough er

Modifies, transports, and stores proteins produced by attached ribosomes

smooth er

Extensive interconnected membrane network lacking ribosomes

smooth er

synthesize fatty acid and other lipids

peroxisomes

smaller, spherical membrane bound organelles formed from the endoplasmic reticulum.

peroxisomes

Detoxify specific harmful substances either produced by the cell or taken into the cell; fat metabolism

golgi apparatus

Series of several elongated, flattened saclike membranous structures.

golgi apparatus

Modifies, packages, and sorts materials, that arrive from the endoplasmic reticulum in transport vesicles

vesicles

transport cellular material.

secretory vesicles

Mature vesicles are called ????

lysosomes

Spherical shaped membrane bound organelles formed from the Golgi apparatus

4.8 ph

how much is the fluid acidity inside lysosomes?

lysosomes

Digest microbes or materials by the cell

cytoskeleton

Organized network of protein filaments

cytoskeleton

Maintains integral structural support and organization of cells

microfilaments

maintain cell shape and cell movement

intermediate filaments

give mechanical support to structures

microtubules

provides structural support.