Bio 161 exam - Study guides, Class notes & Summaries

BIO 161 PSU EXAM 4 QUESTIONS AND ANSWERS 100% PASS Question: Name the three types of muscle tissue found in the human body. - a. skeletal, cardiac, striated - b. voluntary, smooth, cardiac - c. skeletal, cardiac, smooth - d. striated, smooth, involuntary - Answer: c. skeletal, cardiac, smooth Explanation: The human body contains three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle, each with distinct characteristics and functions. Question: What a...

Membrane - ️️thin layer of tissue that covers a surface, lines a cavity, or divides a space or organ amphipathic -️️having both a hydrophilic region and a hydrophobic region the major types of lipids found in cell membranes are: - ️️phospholipids most phospholipids are made up of -️️glycerol backbone attached to a phosphate group and two fatty acids the phosphate head group is - ️️hydrophillic The two fatty acid tails are -️️hydrophobic

Red bone marrow - ️️produces blood cells Skeletal System Functions - ️️-Supports soft tissues and provides attachment points for tendons of skeletal muscles -Protects the most important internal organs -Assists in movement by acting as levers for skeletal muscles -Osseous tissue stores and releases minerals, particularly calcium and phosphorus -Red marrow within bones produces blood cells -Yellow marrow within bones stores triglycerides, a source of potential energy Yellow bone m...

Lacrimal glands are classified as ______________ glands. exocrine The tough, protective sclera consists of a high concentration of collagen fibers arranged in random order. This layer is best described as ______________. dense irregular connective tissue The choroid tissue contains melanocytes (see image), giving it a dark color. What is a function of this layer based on this characteristic? Absorbs extra light as it enters the eye The choroid tissue also contains blood vessels (see arrows in...

Bio 161: Exam 4 PSU Practice Questions and Answers (100% Verified)

Ligase function - ️️Joins fragments of new DNA together into one seamless strand with phosphodiester bonds (uses ATP). What is the function of a gene? - ️️Codes for a specific protein. Where are genes located? - ️️Genes are located on chromosomes. What molecules make up the eukaryotic chromosome? - ️️DNA molecules coiled around proteins (histones). What is transformation? - ️️The uptake of foreign genetic material into a cell How did Griffith's transformation experime...

Electrons in H2 and O2 have relatively high P.E; electrons in H2O have relatively low P.E. - ️️Which statement most accurately describes the relative potential energies (P.E.) of the electrons in the following molecules: H2, O2, and H2O? -The P.E. of electrons are equivalent in all three molecules. -Electrons in H2 and H2O have relatively high P.E; electrons in O2 have relatively low P.E. -Electrons in H2 and O2 have relatively low P.E; electrons in H2O have relatively high P.E. -Elect...

The skeletal system is a dynamic system of _______________ tissue and a balance between _______________ and _______________ -️️connective; production; remodeling _________________ function holds the body upright and supports muscles and organs - ️️support _________________ function encloses important organs - ️️protection ____________________ function provides attachment sites for muscles -️️movement electrolyte and acid/bace balance stores and releases __________ needed by...

Bio 161 Penn State Exam 1 Practice Questions and Answers (100% Pass)

bio 161 psu exam 1 prep questions and answers (2024/2025) 100% verified