Chapter 3 Cellular

Function of glycoproteins located on the phospholipid bilayer

• Selectively move polar substances across the membrane

• Catalyst for intra/extracellular reactions

• Anchor proteins to the membrane

• Cell-cell, cell-pathogen recognition site

Are individual phospholipids bonded together in the bilayer?

• Yes

• No

These act as channels and transporters to assist in the passage of certain substances like glucose and large ions

• Integral proteins

• Transmembrane proteins

• Receptor proteins

• Linker proteins

Substances move across membrane without energy input

• Passive transport

• Active transport

Movement of water from high to low concentration

• Concentration gradient

• Diffusion

• Osmosis

• Osmotic Pressure

A cell uses energy, primarily ATP, to move a substance across the membrane against the concentration gradient

• Carrier-mediated transport

• Facilitated transport

• Active transport

• Channel-mediated transport

Small spherical envelopes of phospholipids that transport fluid and particles

• Vacuoles

• Vesicles

• Lysosomes

• Peroxisomes

All cellular contents between plasma membranes and nuclei

• Intracellular Water

• Cytosol

• Chlorosol

• Chloroplast

Cytoskeletal component that provides a structure for the movement of vesicles throughout the intracellular space

• Microfilaments

• Intermediate filaments

• Microtubules

Specialized structures that perform specific functions for cell growth, maintenance, and reproduction

• Ribosomes

• Mitochondria

• Nucleus

• Organelles