Cell Theory Eukaryotic Cells Classification and structure of prokaryotic cells Genetics and Growth of Prokaryotic Cells Virus and Subviral Particles
100
What are the 4 basic tenets of the cell theory
all living things are composed of cells, the cell is the basic functional unit of life, cells arise only from preexisting cells and cells carry genetic information in the form of DNA.
100
What does the cytosol do
suspends the organelles and allows diffusion of molecules throughout the cell
100
What are prokaryotes?
dont contain membrane-bound organelles, contain genetic material in a single circular molecule of DNA located in the nucleoid region
100
what is the pattern that bacterial growth follows
lag phase, exponential (log) phase, stationary phase, death phase
100
what do bacteriophages contain
tail sheath which injects the genetic material into a bacterium and tail fibers which allow the bacteriophage to attach to the host cell
200
What are viruses
are not considered living things because they are acellular
200
how do microtubules contribute to the structure of cilia and flagella
organized into 9 pairs of microtubules in a ring with 2 microtubules at the center (9+2 structure)
200
what is gram-negative bacteria cell wall like
has a thin cell wall made of peptidoglycan and outer membrane containing phospholipids and lipopolysaccharides
200
what are episomes
plasmids that can integrate into the genome
200
what can single-stranded RNA viruses be
positive sense which can be translated by the host cell or negative sense which requires a complementary strand to be synthesized by RNA replicase before translation
300
How does a virus reproduce
cannot reproduce without the assistance of a host cell
300
How does mitochondria divide independently of the nucleus
via binary fission and can trigger apoptosis by releasing mitochondrial enzymes into the cytoplasm
300
what is the moving caused by flagella in bacteria called
chemotaxis
300
how can extrachromosomal material be carried
plasmids
300
what does retroviruses contain
single-stranded RNA genome from which a complementary DNA strand is made using reverse transcriptase
400
What does a virus use as their genetic material
RNA
400
what do microfilaments form
the cleavage furrow during cytokinesis in mitosis
400
what are prokaryotes 2 domains of life
archaea and bacteria
400
what happens in the conjugation bridge
a plasmid can be transferred from F+ cells to F- cells or a portion of the genome can be transferred from an Hfr cell to a recipient
400
how does the virus infect cells
attaches to specific receptors-> enter cell by fusing with plasma membrane-> being brought in by endocytosis or injecting
500
Which 2 tenets of the cell theory does RNA violate
3rd and 4th
500
what are examples of connective tissue
bone, cartilage, tendons, ligaments, adipose tissue, and blood
500
prokaryotic ribosomal subunits
30S and 50S
500
how do prokaryotes multiply
during binary fission by the chromosome replicating while the cell grows in size until the cell wall begins to grow inward along the midline of the cell and divides into two identical daughter cells
500
how do viruses reproduce
by replicating and translating genetic material using the hosts cell ribosomes, tRNA, amino acids and enzymes






Chapter 1: The Cell

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