Biology Exam 1
MSRI
a type of staph that is resistant
False
all protists are unicellular organisms
chromosomes
are tightly coiled bundles of DNA and protein found in the nucleus of most living cells
external
defenses are always at the ready and are the same whether a particular infectious agent has been encountered before or not
adaptive immunity
describes a set of defenses that is customized to each infectious agent, providing a stronger response when an agent has been encountered before
phagocytosis
describes the process of engulfing and destroying a foreign particle
memory cells
how do vaccines convey long-term immunity to some pathogens ?
2
how many domains contain prokaryotic organisms
nuclear pore
is a protein-lined channel channel in the nuclear envelope that regulates the transportation of molecules between the nucleus and the cytoplasm
complement system
is a set of proteins that circulate in the blood, stimulating other defenses to help destroy an invader
nucleus
is the most prominent membrane-bound organelle in eukaryotic cells, and it houses a cells DNA
nucleolus
is the round body that sits inside the nucleus of a eukaryotic cell and makes ribosomal subunits from proteins and ribosomal RNA
DNA
is the self-replicating material present in nearly all living organisms; it is the main constituent of chromosomes and the carrier of genetic information
nuclear envelope
is the two-layered membrane that encases the nucleus of a eukaryotic cell, separating the nucleus from the cytoplasm
RNA
is used in all steps of protein synthesis and carries the genetic information of many viruses
Produce and Store large numbers of white blood cells
what is the primary role of the lymphatic system?
it is where protein is made
what is the role of the ribosome in protein production
RNA
what passes through nuclear pores?
B cells
which type of white blood cells produces defensive proteins called antibodies?