IVY TECH APHY 101 Midterm Exam 2026/2027
UPDATED QUESTIONS WITH ANSWERS GRADED A+
• What are the levels of organization? Define each. -✓✓ Organelles, cells, tissues,
organs, and organ systems
• What are the characteristics of life? Define each. -✓✓ Movement,
Responsiveness, Growth, Reproduction, Respiration, Digestion, Absorption,
Circulation, Assimilation, Excretion.
• What are the requirements of life? Why is each important? -✓✓ Water, food,
oxygen, heat and pressure
• Define homeostasis. -✓✓ The body's ability to keep its internal conditions stable,
so that it's cells can survive.
• What is a homeostatic mechanism? -✓✓ Receptors control center effectors
• Define Matter? -✓✓ Matter-Anything that has mass and takes up space
• Element? -✓✓ A substance that cannot be broken down into simpler substances
by chemical means.
• Atom? -✓✓ The smallest particle that exhibits the chemical properties of an
element
• What is the basic unit of matter? -✓✓ Atom
, • What is the structure of an atom? -✓✓ Protons and neutrons
• Define nucleus. -✓✓ Nucleus-it carries DNA it is responsible for reproduction
and making protein; it also has two layers
• Proton? -✓✓ Positive charged elementary particle.
• Neutron? -✓✓ Same as proton with no charge.
• Electron? -✓✓ A subatomic particle that has a negative charge
• What are covalent, ionic and hydrogen bonds? What are the differences among
the three? -✓✓ Covalent- when atoms share electrons
Ionic-when cations and anions bind together
hydrogen-A weak attraction formed when a hydrogen atom of one molecule is
attracted to a slightly negative atom within either the same molecule or a different
molecule
• Define synthesis, decomposition and exchange reactions. -✓✓ Synthesis-The
production of chemical compounds by reaction from simpler materials
Decomposition-The breakdown is the separation of a chemical compound into
elements of simpler compounds
UPDATED QUESTIONS WITH ANSWERS GRADED A+
• What are the levels of organization? Define each. -✓✓ Organelles, cells, tissues,
organs, and organ systems
• What are the characteristics of life? Define each. -✓✓ Movement,
Responsiveness, Growth, Reproduction, Respiration, Digestion, Absorption,
Circulation, Assimilation, Excretion.
• What are the requirements of life? Why is each important? -✓✓ Water, food,
oxygen, heat and pressure
• Define homeostasis. -✓✓ The body's ability to keep its internal conditions stable,
so that it's cells can survive.
• What is a homeostatic mechanism? -✓✓ Receptors control center effectors
• Define Matter? -✓✓ Matter-Anything that has mass and takes up space
• Element? -✓✓ A substance that cannot be broken down into simpler substances
by chemical means.
• Atom? -✓✓ The smallest particle that exhibits the chemical properties of an
element
• What is the basic unit of matter? -✓✓ Atom
, • What is the structure of an atom? -✓✓ Protons and neutrons
• Define nucleus. -✓✓ Nucleus-it carries DNA it is responsible for reproduction
and making protein; it also has two layers
• Proton? -✓✓ Positive charged elementary particle.
• Neutron? -✓✓ Same as proton with no charge.
• Electron? -✓✓ A subatomic particle that has a negative charge
• What are covalent, ionic and hydrogen bonds? What are the differences among
the three? -✓✓ Covalent- when atoms share electrons
Ionic-when cations and anions bind together
hydrogen-A weak attraction formed when a hydrogen atom of one molecule is
attracted to a slightly negative atom within either the same molecule or a different
molecule
• Define synthesis, decomposition and exchange reactions. -✓✓ Synthesis-The
production of chemical compounds by reaction from simpler materials
Decomposition-The breakdown is the separation of a chemical compound into
elements of simpler compounds
