ECU Biology 1100 Test 1 Questions With All
Correct & Verified Answers
Homeostasis Correct answer-tendency of an organism or a cell to regulate its internal conditions.
Stabilize health and functioning.
Robert Hooke Correct answer-First to discover and view cells in 1665.
Anton van Leeuwenhoek Correct answer-First to observe microorganisms using a microscope of his
own design in 1675. Described them as animalcules-little animals
Mitochondrion Correct answer-Membrane-bound organelle in cytoplasm of most eukaryotic cells.
Generates energy(ATP), stores calcium for cell signaling, generates heat, and mediates growth/deat
Plant Cell Correct answer-Eukaryotic cells
Chloroplast Correct answer-sunlight is converted to chemical energy during photosynthesis.
Double membrane around exterior.
Central Vacuole Correct answer-Lysosome like organelles in plant cells
Schleiden and Schwann Correct answer-Cell Theory 1830s
All living organisms are made up of cells
Schwann=animals
Schleiden=plants
Rudolf Virchow Correct answer-1860s All cells come from pre-existing cells
Louie Pasteur Correct answer-swan neck vessel to disprove the idea of spontaneous cell generation
Spontaneous Generation Correct answer-The idea that cells spontaneously appear out of air.
Proton Correct answer-Positively charged. Located in the nucleus
Neutron Correct answer-No charge. Located in nucleus
Electron Correct answer-Negatively charged. Located in electron orbital
Nucleus Correct answer-Controls the cells function, contains the cells DNA, RNA comes out,
contains genetic material
Element Correct answer-A pure substance that cannot be broken down into any other substances
by chemical or physical means
Atomic Mass Correct answer-The average mass of all the isotopes of an element
Atomic Number Correct answer-Number of protons in nucleus of an atom
Isotope Correct answer-An atom with the same number of protons and a different number of
neutrons from other atoms of the same element.
, Elements common to life Correct answer-Carbon, Oxygen, Hydrogen, Nitrogen, Phosphorus, Sulfur
Covalent Bond Correct answer-Sharing electrons between elements
Ionic Bond Correct answer-Transfer of electrons between elements
Ion Correct answer-A particle that is electrically charged (positive or negative)
Cation Correct answer-Positive charge=element loses electron
Anion Correct answer-Negative charge=element gains an electron
Valence Shells Correct answer-Outer most energy level containing active electrons
Reactants Correct answer-Elements/Compounds that react with each other to produce a reaction
or product
Products Correct answer-Result of a chemical reaction
Exergonic Reaction Correct answer-A spontaneous chemical reaction in which there is a net release
of free energy
Endergonic Reaction Correct answer-A non-spontaneous chemical reaction in which free energy is
absorbed from the surroundings.
Electron Orbitals Correct answer-Volumes of space surrounding the atomic nucleus where
electrons are likely to be found
Morphine and Endorphins Correct answer-Morphine-drug used to produce the same feelings the
body naturally produces through endorphin hormone
Chromatin Correct answer-Clusters of DNA, RNA, and proteins in the nucleus of a cell
Nucleolus Correct answer-site where gene products are processed.
Nuclear Membrane Correct answer-Double membrane which encloses the nucleus. Nuclear
Envelope
Cytoplasm Correct answer-all components of a cell, excluding the nucleus
Crystol Correct answer-fluid portion between the plasma membrane and these organelles.
Ribosome Correct answer-protein-manufacturing center in eukaryotic cells. Contains RNA and
protein molecules.
Free Ribosome Correct answer-ribosomes suspended in the cytosol that mostly synthesize proteins
which dissolve in the cytosol and function there
Membrane associated ribosome Correct answer-produce protein for the cell envelope and for
secreation
Correct & Verified Answers
Homeostasis Correct answer-tendency of an organism or a cell to regulate its internal conditions.
Stabilize health and functioning.
Robert Hooke Correct answer-First to discover and view cells in 1665.
Anton van Leeuwenhoek Correct answer-First to observe microorganisms using a microscope of his
own design in 1675. Described them as animalcules-little animals
Mitochondrion Correct answer-Membrane-bound organelle in cytoplasm of most eukaryotic cells.
Generates energy(ATP), stores calcium for cell signaling, generates heat, and mediates growth/deat
Plant Cell Correct answer-Eukaryotic cells
Chloroplast Correct answer-sunlight is converted to chemical energy during photosynthesis.
Double membrane around exterior.
Central Vacuole Correct answer-Lysosome like organelles in plant cells
Schleiden and Schwann Correct answer-Cell Theory 1830s
All living organisms are made up of cells
Schwann=animals
Schleiden=plants
Rudolf Virchow Correct answer-1860s All cells come from pre-existing cells
Louie Pasteur Correct answer-swan neck vessel to disprove the idea of spontaneous cell generation
Spontaneous Generation Correct answer-The idea that cells spontaneously appear out of air.
Proton Correct answer-Positively charged. Located in the nucleus
Neutron Correct answer-No charge. Located in nucleus
Electron Correct answer-Negatively charged. Located in electron orbital
Nucleus Correct answer-Controls the cells function, contains the cells DNA, RNA comes out,
contains genetic material
Element Correct answer-A pure substance that cannot be broken down into any other substances
by chemical or physical means
Atomic Mass Correct answer-The average mass of all the isotopes of an element
Atomic Number Correct answer-Number of protons in nucleus of an atom
Isotope Correct answer-An atom with the same number of protons and a different number of
neutrons from other atoms of the same element.
, Elements common to life Correct answer-Carbon, Oxygen, Hydrogen, Nitrogen, Phosphorus, Sulfur
Covalent Bond Correct answer-Sharing electrons between elements
Ionic Bond Correct answer-Transfer of electrons between elements
Ion Correct answer-A particle that is electrically charged (positive or negative)
Cation Correct answer-Positive charge=element loses electron
Anion Correct answer-Negative charge=element gains an electron
Valence Shells Correct answer-Outer most energy level containing active electrons
Reactants Correct answer-Elements/Compounds that react with each other to produce a reaction
or product
Products Correct answer-Result of a chemical reaction
Exergonic Reaction Correct answer-A spontaneous chemical reaction in which there is a net release
of free energy
Endergonic Reaction Correct answer-A non-spontaneous chemical reaction in which free energy is
absorbed from the surroundings.
Electron Orbitals Correct answer-Volumes of space surrounding the atomic nucleus where
electrons are likely to be found
Morphine and Endorphins Correct answer-Morphine-drug used to produce the same feelings the
body naturally produces through endorphin hormone
Chromatin Correct answer-Clusters of DNA, RNA, and proteins in the nucleus of a cell
Nucleolus Correct answer-site where gene products are processed.
Nuclear Membrane Correct answer-Double membrane which encloses the nucleus. Nuclear
Envelope
Cytoplasm Correct answer-all components of a cell, excluding the nucleus
Crystol Correct answer-fluid portion between the plasma membrane and these organelles.
Ribosome Correct answer-protein-manufacturing center in eukaryotic cells. Contains RNA and
protein molecules.
Free Ribosome Correct answer-ribosomes suspended in the cytosol that mostly synthesize proteins
which dissolve in the cytosol and function there
Membrane associated ribosome Correct answer-produce protein for the cell envelope and for
secreation
