Biology Exam 1

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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?


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