BIO 251 Study guides, Class notes & Summaries

Final exam Bio 251 week 8 verified questions and answers latest Which of the following statements about how the skin prevents disease is false? a) salt in sweat retards microbial growth b) the skin is the most common route for organisms to penetrate the body c) oil glands on the skin make it waterproof d) native microbes that live on your skin help protect you from infection - CORRECT ANSWER-b) the skin is the most common route for organisms to penetrate the body This antimicrobial pro...

Which of the following statements about how the skin prevents disease is false? a) salt in sweat retards microbial growth b) the skin is the most common route for organisms to penetrate the body c) oil glands on the skin make it waterproof d) native microbes that live on your skin help protect you from infection - CORRECT ANSWER-b) the skin is the most common route for organisms to penetrate the body This antimicrobial protein is found at high levels in lacrimal secretions (tears) a) lys...

Final exam Bio 251 week 8 verified questions and answers latest Which of the following statements about how the skin prevents disease is false? a) salt in sweat retards microbial growth b) the skin is the most common route for organisms to penetrate the body c) oil glands on the skin make it waterproof d) native microbes that live on your skin help protect you from infection - CORRECT ANSWER-b) the skin is the most common route for organisms to penetrate the body This antimicrobial pro...

Bio-251: Midterm Review (Ch 1-5) exam with newest reviewed Q&A with correct answers 2024

Define microbiology - Answer-The study of microorganisms, how they work, interact with the environment, and interact with us. Bacteria, the largest and most important group of microorganisms. List two emerging infections - Answer-Tuberculosis Hantavirus- mutation Ebola E. coli- in gut Describe the impact of infectious disease on human deaths before the 1900, currently worldwide and compared to the deaths from wars and natural disasters. - Answer-Before the 1900 50% of all children died ...

Cell division in which the nucleus divides into nuclei containing the same number of chromosomes - Answer- Mitosis The resting phase of mitosis. Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases - Answer- Interphase Cells that have left the cycle and cease dividing for a long time (or permanently) - Answer- G Zero (G0) Phase The first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synth...

Anatomy - Answer- The study of form/structure Physiology - Answer- The study of function 4 Types of Tissue - Answer- Connective, muscular, epithelial and nervous Levels of Structural Organization (8) - Answer- Atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms Maintaining Life (8, MMMRRDEG) - Answer- Maintaining boundaries, excretion, responsiveness, movement, digestion, reproduction, growth and metabolism Survival Needs (5, WONAN) - Answer- Water, ox...

Who is credited as the first person to discover microbes? a) John Tyndle b) Louis Pasture c) Josh Stomel d) Antony van Leeuwenhoek d) Antony van Leeuwenhoek Which of the following pieces of evidence would argue against the theory of spontaneous generation? a) All meat left uncovered will eventually produce maggots, regardless of whether or not the meat has been cooked b) When a sterile bottle of broth is sealed against the air, no microbes grow; however, when it is unsealed and expose...

Organs of the body are defined as - Answer- a combination of two or more tissues that make up a structure which performs a specific function What contains most of the water found in the human body? - Answer- intracellular fluid What type of ductless gland secretes hormones into the bloodstream? - Answer- endocrine smallest unit of life - Answer- cells Which tissue conducts signals primarily via electrical impulses? - Answer- nervous tissue Which ion has a greater concentration in...

tissues get together to make - Correct Answer- organs classify H20 - Correct Answer- molecules classify kidney - Correct Answer- organ system that transports oxygen - Correct Answer- cardiovascular system that ovaries belong in - Correct Answer- reproductive & immune first part that notices something wrong - Correct Answer- receptor messages away - Correct Answer- efferent pathway solves problem - Correct Answer- effector most common in healthy person - Correct Answer- ne...