Lecture 3 Flashcards
Prokaryotic and Eukaryotic cells
Human cells are
Eukaryotic cells
Bacteria are what kind of cells?
prokaryotic cells
The miracle drug
Penicillin
This type of drug does not harm human cells
Penicillin
No defined nucleus cells
prokaryotic
Genetic material enclosed in a nucleus
Eukaryote
Genetic material enclosed in a nucleus
Eukaryote
Reproduction of eukaryote cells
binary fission
reproduction of prokaryotic cells
mitosis and meiosis
Does every bacteria species have a capsule
No
What is a function of the capsule
prevent phagocytosis
are means of locomotion
flagella
What are characteristics of the cell wall
prevents osmotic lyosis, provides shape and protection, made of peptidoglycan
peptiglycan in layers, mechanical resistance, antibiodic sensitivity, presence of teichoic acids
gram postive bacteria
what is the most widely used gram staining
differential staining
Allows membrane to regulate passage of molecules
selective permeability
two mechanisms of transport across the membrane
passive and active
does not require energy consumption
passive
with energy consumption by the cell
active
simple diffusion is a type of _____ transportation
passive
movement of solute from an area of high concentration to low
simple diffusion
diffusion of water molecules
osmosis
mediated by a carrier (transport protein)
facilitated diffusion
follows a specific concentration gradiant
facilitated diffusion
requires a transporter and use energy as ATP. It is specifi and against a concentration gradiant
Active transport
what lack cell walls ?
animals
Where are cell walls present in eukaryote
plants, algae, and fungi
DO NOT HAVE PEPTIDOGYLCAN
Eukaryote cells
contains chromosomes and controls transmission of genetic information
nucleus
the transport network
endoplasmic reticulum
further processing and transport of proteins
golgi system
nutrient resevouirs and water balance
vacuoles
their potent degradative enzymes contribute to protein and organelle recycling
lysosomes
