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1 Exam (elaborations) Biology 1140 Exam 2 Questions and All Correct Answers. 2 Exam (elaborations) Biol 1140 EXAM 4 Study Guide Questions with Actual Detailed Solutions. 3 Exam (elaborations) BIOL 1140 EXAM 3 STUDY GUIDE AND ACTUAL ANSWERS.

1. When in life does lactose intolerance begin for much of the human population? Describe the variation across ethnicity. - Answer The gene that codes for lactase often decreases in activity early in life, around the time babies are weaned. We talked about several ethnicities of people who have high lactose intolerance, including people of Asian, Indigenous and African* (*with exceptions) descent. What two ethnicities of people have low rates of lactose intolerance? 2. Differentiate dig...

Define transcription. - Answer The process of creating RNA from DNA Describe how only one strand of DNA is used as the template in transcription. - Answer Only one of the strands (3' to 5' strand) serves as a template; the other one is unused Identify the first step of transcription - Answer Initiation What happens in the first step of transcription, initiation - Answer The enzyme RNA polymerase attaches to a region of the gene called a promoter and transcr...

Describe what happens in the cell cycle G1. - Answer Cell maintenance and growth Describe what happens in the cell cycle S. - Answer DNA replication Describe what happens in the cell cycle stage G2. - Answer Cell growth and preparation to divide Define cell mitosis. - Answer Cell division for growth, repair, or replenishment. Define cell meiosis. - Answer Cell division for creating gametes. Define cell interphase. - Answer Part of the cell cycle...

Scientific Method - Answer Observation, Hypothesis, prediction, Experiment, Data Collection, Conclusion Hypothesis - Answer tentative explanation for the observation prediction - Answer the specific result that is expected if the hypothesis is true experiment - Answer independent variable is changed dependent variable is the measured result Data Analysis - Answer replication of experiment Replication - Answer repetition of an experiment trial ...

Biology is the study of - Answer life 7 properties of living organisms (know at least 2) - Answer 1. Order 2. Reproduction 3. Growth and Development 4. Energy processing 5. Response to environment 6. Regulation 7. Evolutionary Adaptation What were the main points from the TB video? - Answer - TB is caused by bacteria found in the lungs - TB is transmitted through the air - Dark green bacteria = the resistant bacteria - TB is #1 of the top killers globally Mult...

During Cellular Respiration in eukaryotes, which step does not take place in mitochondria? a) oxidative Phosphorylation b) Citric Acid Cycle c)glycolysis d)None of the above - Answer c) glycolysis In an animal cell, where does ATP synthesis using the F-pump ATP synthase take place? a) matrix b)outer mitochondrial membrane c)intermembrane d) inner mitochondrial membrane - Answer a)matrix Which of these statememnts about chemiosmosis is incorrect? a)it is only useful for ...

Water - Answer Most critical molecule for life. Human body is 60-70%. When NaCl is mixed in water, spheres of hydration are formed Hydrophobic interactions - Answer Relationships between hydrophilic and hydrophobic molecules. Hydrophobic ones cluster together in this situation. Buffers - Answer Minimize changes in concentration of H+ and OH- in a solution. Contain a weak acid and a corresponding base which combines reversibly with hydrogen cations. Most biological fluid...

genome - Answer all the DNA in a cell/organisms chromosome - Answer one long DNA strand plus proteins DNA - Answer double stranded nucleotide polymer locus - Answer position on chromosomal DNA-ay position on DNA gene - Answer sequence of DNA nucleotides beginning with a promoter and ending with a terminator; produce proteins allele - Answer an alternative version of a gene chromatin - Answer DNA in loose state homologous chromosomes ...

True of False: Viruses are living organisms. - Answer False Which of the following statements is TRUE? a) All living organisms are multicellular. b) All living organisms can reproduce sexually. c) Cyanobacteria are multicellular organisms. d) Multicellularity evolved multiple times independently. e) Some bacteria are multicellular. - Answer d) Multicellularity evolved multiple times independently. The central dogma states that information can go... - Answer From ...

Key characteristics of living organisms - Answer • Order • Adapt/Evolve • Grow and develop • Homeostasis • Respond to the environment • Process energy • Reproduce Why are cells so small? - Answer The membrane surrounding the cell functions in passage of nutrients and wastes. This is due to diffusion. Larger cells have a greater volume than surface area which cannot support their metabolic needs for diffusion. Cell theory - Answer 1. All living organism...

Nucleic Acids - Answer -Deoxyribonucleic acid (DNA) -Ribonucleicacid(RNA) Gregor Mendel - Answer -"father of genetics" -Pea breeder extraordinaire Friedrich Miescher - Answer -Isolated a phosphate rich molecule he named nuclein from white blood cells Phoebus Levene - Answer -Identified the composition of the nucleotide and how a polynucleotide was assembled Nucleotides - Answer -building blocks of nucleic acids -Phosphate is attached to the C5...

what is a plasmid? - Answer a small, circular DNA molecule separate from the chromosome in the lac operon, the RNA polymerase binds to the _____ when the repressor protein is _____ by lactose - Answer promoter, inactivated epigenetics most often involves: - Answer addition of methyl groups to DNA bases, usually cytosine in humans, mRNA is often spliced such that: - Answer one or more exons are missing in eukaryotes, transcription factors bind: - Answer t...

What 3 structures do both prokaryotic and eukaryotic cells have? - Answer Cell membrane DNA (chromosomes) Ribosomes What is a nucleoid and which cells have it? - Answer A nucleoid is a region where DNA is located. Bacterial cells / prokaryotes have it. What do eukaryotic cells have instead of a nucleoid? - Answer Nucleus. Why can antibiotics be effective against prokaryotes, and not damage your eukaryotic cells? - Answer Prokaryotes contain... 1. Cell walls ma...

When you walk up the stairs, your hip and knee joints ____ to lift your body weight. a. Adduct b. Rotate c. Extend d. Flex e. Abduct - Answer c. Extend Raising an arm to one side of the body to stop a taxi, is an example of ____ of the shoulder. a. Circumduction b. Protraction c. Abduction d. Rotation e. Adduction - Answer c. abduction The epiphysis and diaphysis of a long bone in a child are bound by a ____. a. Plane suture b. Symphysis c. Serra...

1 Exam (elaborations) Week 7 Sherpath: Growth and Development of the Toddler Questions with Complete Solutions. 2 Exam (elaborations) Week 6 Sherpath: Infants and Children as a Target Population Questions and Answers. 3 Exam (elaborations) Sherpath Lesson: Adult Development and Aging Questions and Answers.

A toddler who was 33 inches in height on his or her second birthday would be expected to measure approximately _______ inches in height on his or her third birthday. - Answer 36 The average toddler grows approximately 3 in. (7.62 cm) each year. The toddler would therefore be expected to be 36 inches (33 + 3) on his or her third birthday. A toddler who weighs 22 lbs at 1 year of age would be expected to weigh approximately ______ lbs by the third birthday. - Answer 32 The average...

Which infant does the nurse identify as being at the highest risk for death? A. 36 weeks gestation, 5.0 pounds at birth B. 37 weeks gestation, 6.0 pounds at birth C. 38 weeks gestation, 5.5 pounds at birth D. 39 weeks gestation, 5.75 pounds at birth - Answer A. 36 weeks gestation, 5.0 pounds at birth A baby born before 37 weeks of gestation and has low birth weight, placing it at highest risk for death. The nurse is caring for four patients. Which does the nurse identify as being a...

1. Which type of change in body systems is associated with the physiological process of aging? - Answer D. Gradual 2. Which cellular factors are significant to the aging process? - Answer A. Increased cell damage C. Altered protein homeostasis D. Decrease in number of cells E. Diminished capacity to repair damaged DNA 3. Which statement describes an example of how the environment affects aging? - Answer A. Good nutrition can slow the aging process. 4. Which common t...

What contributes to helping an infant to fight infection within the first year of life? (SELECT ALL THAT APPLY) Breast milk Vaccinations Fully functional respiratory system The mother's transplacental antibodies Bottle-fed cow's milk supplemented with Vitamins A, C, and D - Answer CORRECT- Breast milk The breast milk contains IgA and proteins including lactoferrin, lysozyme, and serum albumin. The infant benefits from maternal IgA since the baby's immune system...