Biology Proctored Exam Penn Foster
Questions with 100% Correct Answers
Characteristics of living things - ✔✔1. levels of organization
2. ability to acquire food for energy
3. maintain an internal environment
4. respond to stimuli
5. reproduce and develop
6. ability to adapt and evolve
7. contain cells
Levels of Biological Organization - ✔✔atom, molecule, cell, tissue, organ,
organ system, organism, species, population, community, ecosystem,
biosphere
How are organisms classified? - ✔✔on the basis of their
evolutionary/genetic relatedness
What is the scientific method? What is it's importance in biological
sciences? - ✔✔Process used to validate observations while minimizing
observer bias
,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 it must contain what? - ✔✔Carbon and
hydrogen
,What are the main groups of organic molecules that build cells and their
parts? - ✔✔Carbohydrates, proteins, lipids, nucleic acid
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 carbs? - ✔✔Glucose= monosaccharide that
serves as blood 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
What is the cell theory? - ✔✔All living organisms are made up of cells
The cell is the smallest structural and functional unit of all living organisms
All cells arise from pre-existing cells
Ribosome - ✔✔Makes proteins
Endoplasmic Reticulum - ✔✔A cell structure that forms a maze of
passageways in which proteins and other materials are carried from one
part of the cell to another.
Smooth ER - ✔✔Makes lipids
Rough ER - ✔✔That portion of the endoplasmic reticulum studded with
ribosomes.
Golgi Apparatus - ✔✔Sorts and packs protein into vesicles and transports
them
Lysosome - ✔✔Digests food, bacteria and worn out organelles
Vacuole - ✔✔Stores food, enzymes and other material
Mitochondria - ✔✔Powerhouse of the cell- produces energy for growth,
development and movement
Questions with 100% Correct Answers
Characteristics of living things - ✔✔1. levels of organization
2. ability to acquire food for energy
3. maintain an internal environment
4. respond to stimuli
5. reproduce and develop
6. ability to adapt and evolve
7. contain cells
Levels of Biological Organization - ✔✔atom, molecule, cell, tissue, organ,
organ system, organism, species, population, community, ecosystem,
biosphere
How are organisms classified? - ✔✔on the basis of their
evolutionary/genetic relatedness
What is the scientific method? What is it's importance in biological
sciences? - ✔✔Process used to validate observations while minimizing
observer bias
,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 it must contain what? - ✔✔Carbon and
hydrogen
,What are the main groups of organic molecules that build cells and their
parts? - ✔✔Carbohydrates, proteins, lipids, nucleic acid
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 carbs? - ✔✔Glucose= monosaccharide that
serves as blood 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
What is the cell theory? - ✔✔All living organisms are made up of cells
The cell is the smallest structural and functional unit of all living organisms
All cells arise from pre-existing cells
Ribosome - ✔✔Makes proteins
Endoplasmic Reticulum - ✔✔A cell structure that forms a maze of
passageways in which proteins and other materials are carried from one
part of the cell to another.
Smooth ER - ✔✔Makes lipids
Rough ER - ✔✔That portion of the endoplasmic reticulum studded with
ribosomes.
Golgi Apparatus - ✔✔Sorts and packs protein into vesicles and transports
them
Lysosome - ✔✔Digests food, bacteria and worn out organelles
Vacuole - ✔✔Stores food, enzymes and other material
Mitochondria - ✔✔Powerhouse of the cell- produces energy for growth,
development and movement
