Exam 2 Flashcards
(20 cards)
Two eukaryotic organelles resulting from endosymbiosis are __________ and ___________
Chloroplasts and mitochondria
The structure that defines the existence of a cell is the ___________
Cell membrane
Functions of the cytoplasmic membrane include
Selective barrier, energy storage, structural support, and transport
Studying pathogen-specific features, such as bacterial ribosomes, helps in the design of new ___________
Antibiotics
What is untrue about phospholipids
They are very rigid and give a cell its shape
Active and passive transport of ions across the cytoplasmic membrane are facilitated by ________
Transport proteins
What is the term that describes a solute concentration that is lower outside a semipermeable membrane
Hypotonic
In what type of transport do molecules move against their concentration gradient
Active transport
What is not a function of cell membrane proteins
Ion storage
All of the following features help eukaryotic organisms withstand osmotic pressure except
Peptidoglycan
Which structures enable cells to attach to surfaces
Pili, fimbriae, and stalks
What type of taxonomic classification is used to represent differences in antigenic makeup, susceptability to bacterial viruses and in pathogenicity within a species
Type
Which of the following genera are known as spore formers
Bacillus and clostridium
Which of the following genera are known as a source of antibiotics
Streptomyces
Which phylum is divided into five major classes (alpha, beta, gamma, delta, and epsilon)
Proteobacteria
A genus known for causing infections in burn patients is
Pseudomonas
What is not a characteristic of fungi
No pathogenic representatives
What would be classified in the eukaryotic phylogenetic clade Viridiplantae
Algae
Metamonads are a group of eukaryotic microorganisms lacking ___________
Mitochondria
What is a fundamental trait of prokaryotes
Tightly coordinated cell functions
