Bsc 101 Study guides, Class notes & Summaries

The atomic number of an element is the number of correct answers protons in the nucleus In a covalent bond, atoms correct answers share electrons In living cells, a process by which cells break polymers down into monomers with the addition of water is correct answers hydrolysis The primary building block of proteins correct answers amino acid cohesion is a property of water in which water molecules tend to stick together correct answers true Carbohydrate polymer limited to two mon...

ATP correct answers Adenosine triphosphate. The energy currency of the cell. Endomembrane System correct answers A network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles. oxidation correct answers Loss of electrons reduction correct answers Any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen) exergonic correct answers A reaction that results in ...

Identify and describe the steps of the scientific method. correct answers 1) Observe the situation. 2) Ask a question related to your observations. 3) Turn that question into a testable hypothesis and predict the outcome of your experiment. 4) Test the hypothesis by designing and performing an experiment. 5) Analyze the results. 6) Evaluate your hypothesis; does the data support it? What is a hypothesis? correct answers A tentative answer to a scientific question. Describe descent wit...

Describe DNA structure - Answer-DNA forms a double stranded helix and adenine pairs with thymine, and cytosine pairs with guanine What pair forms hydrogen bonds and how many - Answer-thymine/adenine form 2 bonds guanine/cytosine form 3 bonds Explain "the central dogma" - Answer-DNA turning into RNA turning into Protein What is transcription - Answer-Copying of DNA code to RNA, one nucleotide at a time so it is complementary to the DNA What is translation - Answer-RNA gets translated int...

Structure of a typical viral particle? - Answer--nucleic acid with either DNA or RNA -surronder by a capsized of protein -sometimes embellishments (a viral envelope outside the capsid) How do viruses infect cells? - Answer-attach themselves to the host cell -by injection of their nucleic acid into the host cell -by the host cell engulfing the virus Why is a virus considered "not" alive? - Answer--they lack the ability to reproduce/replicate -so it is highjacking the cellular machinery i...

What is the order of the scientific method myth - Answer-1. Observe 2. Question (prediction & hypothesis) 3. Experiment (independent variable, dependent variable, control, data) 4. Evaluate hypothesis 5. Draw conclusions Good and bad about the scientific method myth - Answer-good- scientists test ideas with evidence bad- oversimplified, implies one experiment can answer a research question, not linear, implies science is an independent effort, no creativity/imagination, ignores technology...

A way in which the scientific method is inadequate at describing what science is - Answer-It's oversimplified A way in which the scientific method is inadequate at describing what science is - Answer-It implies one experiment can answer a research question A way in which the scientific method is inadequate at describing what science is - Answer-scientific method is not a linear process and is sometimes repeated multiple times A way in which the scientific method is inadequate at describin...

Gene flow - Answer-The movement of alleles from one population to another biological fitness - Answer-The degree to which an individual organism can reproduce and have its genes represented in the next generation. peer review - Answer-is when other scientists read a scientist's study before it is published, to increase the likelihood the study is valid. Benefits and outcomes - Answer-develop technology, inform policy, and build knowledge Population - Answer-A group of organisms of the sam...

What is the structure of DNA called? - Answer--the double helix -adenine pairs with thymine - they form 2 hydrogen bonds together -guanine pairs with cytosine - they form 3 hydrogen bonds together while genetic information is transferred from parent to offspring via DNA duplication, genetic information is transferred from DNA to RNA (which is called transcription) and then RNA to protein (which is called translation) - Answer-the central dogma RNA translated into protein (every 3 RNA bas...