bio #3
nuclear pore
opening in the nuclear envelop that permits the passage of molecules into and out of the nucleus
archaea, bacteria
prokaryotic cells are found in which of the following domains
fimbriae
short appendages used for attachment
eubacteria, archaea
cells in which two domains lack a membrane bound nucleus?
chromosomes
chromatin, which consists of dna and associated proteins, undergoes coiling and condenses during cell division to form
hooke
coined the term cell
salts, waters, dissolved organic molecules
components of the cytoplasm
nucleoli, centrioles, mitochondria, plasma membrane
found in animal cells
converts substrates into ATP
function of the mitochondrion
autodigestion, intracellular digestion
functions of the lysosome
capsule
gelatinous sheath that surrounds and protects the cell
eukaryotic cells
humans, oak trees and protists are all composed of which type of cell
ribosomes
in a cell, proteins are made at structures called
mitochondria
in a eukaryotic cell within which organelle does cellular respiration occur
flagella
long thin appendages used for locomotion
leeuwenhoek
made microscopes
plasmids
many prokaryotic cells contain small rings of accessory dna called
photosynthesis
solar energy + carbon dioxide + water -> carbohydrate + oxygen is what
schwann
stated that animals are composed of cells
virchow
stated that cells come from preexisting cells
schleiden
stated that plants are composed of cells
plasma
the ___ membrane separates the cytoplasm from the surrounding environment and regulates the passage of molecules into and out of the cell
secretion
the action known as _____, or exocytosis, involves the release of materials from the cell via vesicles that fuse with the plasma membrane
cell
the basic unit of living organisms, which can carry out all of the necessary functions of life is the ____
envelope
the double membrane that surrounds the nucleus is called the nuclear
cellulose
the material that is common to the cell walls of plants and algae is called
chloroplast
the process of photosynthesis occurs within organelles called ____
cytoplasm
the semi fluid medium within a cell is called the
nucleoplasm
the semifluid material enclosed by the nuclear envelope is called
organelles
the small structures within the cytoplasm of a eukaryotic cell that perform specific functions are called
organelles
the small structures within the cytoplasm of a eukaryotic cell that perform specific functions are called _____
phospholipids, protein
the smooth ER synthesizes primarily _____ molecules while the rough ER is involved with the production of _____ molecules
smaller cell
which cell has a greater surface-area-to-volume ratio
eukaryotes
which cell has a membrane bound nucleus?
catalase
which enzyme found within the peroxisome functions to degrade hydrogen peroxide
ATP
which molecule is used to fuel all energy dependent cellular processes
nucleus
which organelle contains the generic material in a eukaryotic cell
chloroplasts, mitochondria
which two eukaryotic organelles function to convert energy into a form that cells can use