BIO 1040

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE Define selectively permeable Only allows specific materials to pass over the membrane. *Always from higher to lower concentrations Examples of selectively permeable pasta strainer, net, filter, cell membrane, screen Define hydrophilic Attracted to water Example of hydrophilic sugar and salt Define hydrophobic tending to repel or fail to mix with water. Example of hydrophobic oil and water Define peptidoglycan The macromolecule f...

BIO 1040 NERVOUS SYSTEM TEST QUESTIONS AND ANSWERS LATEST UPDATE central nervous system brain and spinal cord peripheral nervous system sensory and motor nerves sensory neurons bring in information from the internal or external environment interneurons process information and only located in the CNS motorneurons send out commands white matter has a myelin sheath that increases signal speed gray matter no myelin sheath and decreases signal speed resting potential the charge on...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE Epithelial tissue has which of the following functions? secretion absorption protection moves mucus all of the answers are functions of epithelial tissue all of the answers are functions of epithelial tissue A ___________ is a change in the environment that is strong enough to initiate an action potential. stimulus impulse synapse plexus none of the answers are correct stimulus Another name for bone tissue i...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE descent with modification Term Darwin used instead of evolution 5 years How long Darwin spend on HMS Yes! It is a process. It is the mechanism that cause the observed pattern change Did Darwin believe evolution was a branching process A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits. natural selection This a human thing. Spec...

BIO 1040 CHAPTER 24 TEST QUESTIONS AND ANSWERS LATEST UPDATE Immune system is composed of The lymphatic system (including lymph vessels & nodes; thymus, spleen, tonsils & adenoids). Bone marrow & a variety of white blood cells. Antibodies & complement proteins. A variety of signal molecules. immune system a system of organs, tissues, cells, and cell products that protect an organism from foreign & potentially harmful organisms, tissues or other substances. Innate Immunity Aka non-...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE simple columnar epithelium lines the intestines, where it secretes digestive juices and absorbs nutrients. The apical surface of some columnar cells has tiny densely packed projections called microvilli that increase surface area for absorption; other cells have longer motile projections called cilia that move materials along the epithelial surface. simple squamous epithelium Function: Allows passage of materials by diffusion and filtra...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE Cell Phones and Cancer Debate on cell phones causing cancer since 1993. Scientific Evidence Conclusions drawn from observations and experimentation. Controlled Experiment Experiment where variables are controlled by the researcher. Hypothesis Proposed explanation tested through experimentation. Independent Variable Variable systematically changed in an experiment. Dependent Variable Variable measured to assess effects of changes...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE biophilia the concept that humans subconsciously seek connection with life genetic diversity a measurement of the differences in DNA composition among individuals within a given species taxonomists scientists who classify species, use an organism's physical appearance and genetic makeup to determine its species genetic bottleneck event in which a significant portion of the population of a species is killed or prevented from reprodu...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE Placebo A fake treatment given to control groups to mimic the experience of the experimental group Experiment A carefully designed test, the results of which will either support or rule out a hypothesis Falsifiable Describes a hypothesis that can be ruled out by the data that shows the hypothesis does not explain the observation Testable Describes a hypothesis that can be supported or rejected by carefully designed experiments or ob...

BIO 1040 TEST QUESTIONS AND ANSWERS LATEST UPDATE who conducted case study on day to day activity james levine what does NEAT stand for non exercise activity thermogenesis What does BMI stand for body mass index define nutrients chemical components found in food that our body needs to live, grow and repair itself define energy The ability to work What is the energy in food measured in Calories one Calorie =? 1000 calories = 1 kilocalorie define cellular respiration the proces...