Biology Exam Test Questions with Solutions
Biology is the scientific study of - -all forms of life
-Scientists use observations to form - -hypothesis
-During an experiment, which factors are observed and measured - -dependent variables
-The variety of life across the biosphere is called - -biodiversity
-Biodiversity is greater at the equator because of - -warmer climates
-Similar organisms that can reproduce by interbreeding belong to the same - -species
-All the chemical processes used to build up or break down materials are called an
organisms - -metabolism
-What is the name given for genetic changes over a long period of time - -evolution
-A physical environment with different species that interact with one another and with
non living things is called a - -ecosystem
-Organisms rely on both negative feed back processes and behavior to maintain - -
homeostasis
-How have computer models expanded biological research - -they stimulate complex
biological systems that cannot be studied directly
-The study and manipulation of DNA on a molecular level is known as - -molecular
genetics
-Exploring how indoor air pollutants lead to respiratory problems is an example if using
biology to - -improve human health
-Topics in biology that deal with moral issues are considered ____ - -ethics
-To examine a thing ski d of cell you would use a - -TEM
-To examine microscopic live organisms I would use a ___ microscope - -light
-An inherited trait that gives an advantage to individual organisms and is passed on to
future generations is an - -adaptation
-The smallest basic unit of matter is the - -atom
, -The following are functions of proteins except:
A: structural
B: enzymes
C: provide energy
D: transportation - -C: provide energy
-Which of the following is formed when an atom gains or looses an electron
A: element
B: compound
C: molecule
D: ion - -D: ion
-Atoms in molecules share pairs of electrons when they make - -covalent bonds
-What gives water properties that are important to living things? - -hydrogen bonds
-Which of the following solutions has the highest H ion concentration?
A: a solution with a pH of 1
B: a solution with a pH of 4
C:a solution with a pH of 7
D: a solution with a pH of 10 - -A: a solution with a pH of 1
-What is unique about carbon? - -bonding properties
-The four main types of carbon-based molecules in organisms are carbohydrates, lipids,
nucleic acids, and ___ - -proteins
-Substances are changed into different substances when bonds break and form during - -
chemical reactions
-Identify the products in this reaction: 6HO+6CO+CHO+6O - -6H2O and 6CO2
-Chemical reactions that absorb more energy than they release are called - -endothermic
-The activation energy needed for a chemical reaction is decreased by a - -catalyst
-Which aspect of a chemical reaction is affected by enzymes - -rate/speed
-Which of the following is a major principle upon which cell theory is based
A: all cells form by free-cell formation
B: all cells have DNA
C: all organisms are made of one of more cells
D: all cells are eukaryotic - -C: all organisms are made of one of more cells
-Which organelle is the storehouse for most of a cells genetic information - -nucleus
Biology is the scientific study of - -all forms of life
-Scientists use observations to form - -hypothesis
-During an experiment, which factors are observed and measured - -dependent variables
-The variety of life across the biosphere is called - -biodiversity
-Biodiversity is greater at the equator because of - -warmer climates
-Similar organisms that can reproduce by interbreeding belong to the same - -species
-All the chemical processes used to build up or break down materials are called an
organisms - -metabolism
-What is the name given for genetic changes over a long period of time - -evolution
-A physical environment with different species that interact with one another and with
non living things is called a - -ecosystem
-Organisms rely on both negative feed back processes and behavior to maintain - -
homeostasis
-How have computer models expanded biological research - -they stimulate complex
biological systems that cannot be studied directly
-The study and manipulation of DNA on a molecular level is known as - -molecular
genetics
-Exploring how indoor air pollutants lead to respiratory problems is an example if using
biology to - -improve human health
-Topics in biology that deal with moral issues are considered ____ - -ethics
-To examine a thing ski d of cell you would use a - -TEM
-To examine microscopic live organisms I would use a ___ microscope - -light
-An inherited trait that gives an advantage to individual organisms and is passed on to
future generations is an - -adaptation
-The smallest basic unit of matter is the - -atom
, -The following are functions of proteins except:
A: structural
B: enzymes
C: provide energy
D: transportation - -C: provide energy
-Which of the following is formed when an atom gains or looses an electron
A: element
B: compound
C: molecule
D: ion - -D: ion
-Atoms in molecules share pairs of electrons when they make - -covalent bonds
-What gives water properties that are important to living things? - -hydrogen bonds
-Which of the following solutions has the highest H ion concentration?
A: a solution with a pH of 1
B: a solution with a pH of 4
C:a solution with a pH of 7
D: a solution with a pH of 10 - -A: a solution with a pH of 1
-What is unique about carbon? - -bonding properties
-The four main types of carbon-based molecules in organisms are carbohydrates, lipids,
nucleic acids, and ___ - -proteins
-Substances are changed into different substances when bonds break and form during - -
chemical reactions
-Identify the products in this reaction: 6HO+6CO+CHO+6O - -6H2O and 6CO2
-Chemical reactions that absorb more energy than they release are called - -endothermic
-The activation energy needed for a chemical reaction is decreased by a - -catalyst
-Which aspect of a chemical reaction is affected by enzymes - -rate/speed
-Which of the following is a major principle upon which cell theory is based
A: all cells form by free-cell formation
B: all cells have DNA
C: all organisms are made of one of more cells
D: all cells are eukaryotic - -C: all organisms are made of one of more cells
-Which organelle is the storehouse for most of a cells genetic information - -nucleus
