PHGY 170 Midterm 2019 Exam Questions With
Complete Answers
Alkanes - ANSWER Single bonded hydrocarbons
Alkenes - ANSWER Hydrocarbons with one or more double bonds
Amphipathic - ANSWER Both hydrophobic and hydrophilic properties (ex.
phospholipids)
Hydrophilic - ANSWER Dissolves in water
Hydrophobic - ANSWER Does not dissolve in water
Water's capabilities to support life - ANSWER -Liquid at room temperature
-Polar (forms hydrogen bonds, good solvent, facilitates delivery and communication
between cells)
-More dense as a liquid then as a solid (insulation)
-High heat capacity (thermoregulation)
Lipids - ANSWER Insoluble in water hydrocarbon chains that make up oils and fats
Carbohydrates - ANSWER Made up of carbon and water (saccharides)
Epithelial cells - ANSWER Type of cell that form protective barriers in tissues or
specialized to secrete/absorb compounds
, Muscle cells - ANSWER Type of cell responsible for movement or internal organs
Nerve cells - ANSWER Type of cell that conducts electrical signals and are responsible
for muscle contraction and the 5 senses
Connective tissue cells - ANSWER Type of cell that holds other cells together in a tissue
Bone cells - ANSWER Type of cell that forms the skeleton to give strength and support to
the body
Secretory cells - ANSWER Type of cell that form glands and are secretory
Adipose cells - ANSWER Fat cell that store fat in the body
Red blood cells - ANSWER Type of cell formed in the bone marrow and are released into
the circulatory system
Cell Theory - ANSWER -Every cell comes from a preexisting cell
-All living organs are comprised of cells
-The basic unit of organism
Nucleus - ANSWER Protects and organizes DNA. Regulates molecules that have access
to it.
Nuclear envelope - ANSWER Double membrane attached to the endoplasmic reticulum.
Controls access to the nucleus
Nuclear pores - ANSWER Controls in and out traffic to and from the nucleus
Complete Answers
Alkanes - ANSWER Single bonded hydrocarbons
Alkenes - ANSWER Hydrocarbons with one or more double bonds
Amphipathic - ANSWER Both hydrophobic and hydrophilic properties (ex.
phospholipids)
Hydrophilic - ANSWER Dissolves in water
Hydrophobic - ANSWER Does not dissolve in water
Water's capabilities to support life - ANSWER -Liquid at room temperature
-Polar (forms hydrogen bonds, good solvent, facilitates delivery and communication
between cells)
-More dense as a liquid then as a solid (insulation)
-High heat capacity (thermoregulation)
Lipids - ANSWER Insoluble in water hydrocarbon chains that make up oils and fats
Carbohydrates - ANSWER Made up of carbon and water (saccharides)
Epithelial cells - ANSWER Type of cell that form protective barriers in tissues or
specialized to secrete/absorb compounds
, Muscle cells - ANSWER Type of cell responsible for movement or internal organs
Nerve cells - ANSWER Type of cell that conducts electrical signals and are responsible
for muscle contraction and the 5 senses
Connective tissue cells - ANSWER Type of cell that holds other cells together in a tissue
Bone cells - ANSWER Type of cell that forms the skeleton to give strength and support to
the body
Secretory cells - ANSWER Type of cell that form glands and are secretory
Adipose cells - ANSWER Fat cell that store fat in the body
Red blood cells - ANSWER Type of cell formed in the bone marrow and are released into
the circulatory system
Cell Theory - ANSWER -Every cell comes from a preexisting cell
-All living organs are comprised of cells
-The basic unit of organism
Nucleus - ANSWER Protects and organizes DNA. Regulates molecules that have access
to it.
Nuclear envelope - ANSWER Double membrane attached to the endoplasmic reticulum.
Controls access to the nucleus
Nuclear pores - ANSWER Controls in and out traffic to and from the nucleus
