BIOLOGY PROCTORED EXAM PENN FOSTER
EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
Terms in this set (199)
Characteristics of living things -All are composed of cells
-All obtain energy and use it to develop
-Can sense changes in the environment and
adjust in response to change
-Exhibit modifications that represent adaptations
to their environment
Levels of Biological Organization atom, molecule, organelle, cell, tissue, organ,
organ system, organism
How are organisms classified? on the basis of their evolutionary/genetic
relatedness
,What is the scientific method? What Process used to validate observations while
is it's importance in biological minimizing observer bias
sciences?
It's goal is for research to be conduced in a fair,
unbiased and repeatable manner. The best way
to discover how and why the world works
What is matter? Anything that has mass and takes up space
What is an atom? smallest unit of matter that retains all the
chemical properties of an element. They combine
to form molecules which then form into a solid,
gas or liquid
What is the structure of an atom? Nucleus in the center that contains protons
(positively charged) and neutrons (no charge).
The outermost region is called an electron shell
that contain the electrons (negatively charged)
What is an ionic bond? A chemical bond that's formed when an atom
transfers and electron to another Atom
What is a covalent bond? Results when 2 atoms share electrons in order to
have a completed outer shell
What is a double covalent bond? Occurs when 2 atoms share 2 pairs of electroms
In order to be an organic molecule Carbon and hydrogen
it must contain what?
What are the main groups of Carbohydrates, proteins, lipids, nucleic acid
organic molecules that build cells
and their parts?
, What are the properties of water? Its attraction to polar molecules.
High-specific heat.
High heat of vaporization.
The lower density of ice.
High polarity.
Carbohydrates Broken down to glucose to provide energy.
What are the different kinds of Glucose= monosaccharide that serves as blood
carbs? sugar
Sucrose= disaccharide which is table sugar
Polysaccharides= include starch, which stores
energy in plants
Glycogen= stores energy in animals
Cellulose= makes up the structure of plant cell
walls
Protein macromolecule that contains carbon, hydrogen,
oxygen, and nitrogen; needed by the body for
growth and repair
Lipid Energy-rich organic compounds, such as fats,
oils, and waxes, that are made of carbon,
hydrogen, and oxygen.
Serve as a long term energy source
Nucleic acid macromolecule containing hydrogen, oxygen,
nitrogen, carbon, and phosphorus
Form DNA which acts to store genetic
information
EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
Terms in this set (199)
Characteristics of living things -All are composed of cells
-All obtain energy and use it to develop
-Can sense changes in the environment and
adjust in response to change
-Exhibit modifications that represent adaptations
to their environment
Levels of Biological Organization atom, molecule, organelle, cell, tissue, organ,
organ system, organism
How are organisms classified? on the basis of their evolutionary/genetic
relatedness
,What is the scientific method? What Process used to validate observations while
is it's importance in biological minimizing observer bias
sciences?
It's goal is for research to be conduced in a fair,
unbiased and repeatable manner. The best way
to discover how and why the world works
What is matter? Anything that has mass and takes up space
What is an atom? smallest unit of matter that retains all the
chemical properties of an element. They combine
to form molecules which then form into a solid,
gas or liquid
What is the structure of an atom? Nucleus in the center that contains protons
(positively charged) and neutrons (no charge).
The outermost region is called an electron shell
that contain the electrons (negatively charged)
What is an ionic bond? A chemical bond that's formed when an atom
transfers and electron to another Atom
What is a covalent bond? Results when 2 atoms share electrons in order to
have a completed outer shell
What is a double covalent bond? Occurs when 2 atoms share 2 pairs of electroms
In order to be an organic molecule Carbon and hydrogen
it must contain what?
What are the main groups of Carbohydrates, proteins, lipids, nucleic acid
organic molecules that build cells
and their parts?
, What are the properties of water? Its attraction to polar molecules.
High-specific heat.
High heat of vaporization.
The lower density of ice.
High polarity.
Carbohydrates Broken down to glucose to provide energy.
What are the different kinds of Glucose= monosaccharide that serves as blood
carbs? sugar
Sucrose= disaccharide which is table sugar
Polysaccharides= include starch, which stores
energy in plants
Glycogen= stores energy in animals
Cellulose= makes up the structure of plant cell
walls
Protein macromolecule that contains carbon, hydrogen,
oxygen, and nitrogen; needed by the body for
growth and repair
Lipid Energy-rich organic compounds, such as fats,
oils, and waxes, that are made of carbon,
hydrogen, and oxygen.
Serve as a long term energy source
Nucleic acid macromolecule containing hydrogen, oxygen,
nitrogen, carbon, and phosphorus
Form DNA which acts to store genetic
information
