Biol 103 - Study guides, Class notes & Summaries

The plasma _________ separates the internal contents of a cell from the extracellular environment membrane What are the 3 components of cellular membranes ? carbohydrates, phospholipids, and proteins (T/F) In a biological membrane that is fluid, individual molecules can move within the membrane ? TRUE What separates the internal contents of a cell from the extracellular environment ? the plasma membrane Most phospholipids move freely within a semifluid membrane laterally along the plane of t...

This is a comprehensive and detailed note for Campbell biology chapter 6. U'll need it!!!

what is the energy currency of cells? correct answer: ATP what is the study of physical inheritance among living things? correct answer: Genetics the information used to make proteins is encoded by what four bases? correct answer: Adenine Thymine Guanine Cytosine if an error occured in anaphase that failed to separate a pair of sister chromatids would result in what? correct answer: one cell would have an extra chromosome, and one cell would lack a chromosome chromosomes are a...

BIOL 103 : INTRODUCTION TO BIOLOGY UPDATED ACTUAL EXAM – UM

Energy the ability to do work kinetic energy energy due to motion potential energy stored energy that results from the position or shape of an object chemical energy A form of potential energy that is stored in chemical bonds between atoms. electrochemical gradient The diffusion gradient of an ion, which is affected by both the concentration difference of an ion across a membrane (a chemical force) and the ion's tendency to move relative to the membrane potential (an electrical force). lig...

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BIOL 1030 Mastering Biology Chapter 40 UPDATED Actual Exam Questions and CORRECT Answers How does connective tissue differ from the other three major tissue types? - CORRECT ANSWER- Connective tissue often consists of relatively few cells embedded in an extracellular matrix. This describes many connective tissues, such as loose connective tissue. - CORRECT ANSWER- ..

What kind of group are protists? Polyphyletic Why did the classification of protists change? Advancements in eukaryotic systematics Are protists unicellular or multicellular? Most are unicellular, but not all What makes single-celled protists so complex All biological functions are carried out by organelles in each individual cell Are protists sexually or asexually reproductive? Some are asexual, some sexually reproduce Photoautotrophs Protists that contain chloroplasts Heterotrophs An org...

Which of the following are true of most angiosperms? They have a triploid endosperm within in the seen and an ovary that becomes a gruit Which of the following is the correct sequence of events in a pollen sac microsporocyte > meiosis > microspores > mitosis > two haploid cells per pollen grain CO2 enters the inner spaces of the leaf through the stoma Which of the following essential nutrients plays an essential role in regulations of the opening and closing o...

What are the purposes of DNA repair systems? reverse DNA damage Mutation= a heritable change in the genetic material essential to the variation of life What is the difference between gene and chromosomal mutations? Gene mutations are relatively small changes in the sequence of bases in a particular gene base substitution= substitute A for T OR G for C addition= add a single base pair deletion= delete a single base pair What are the consequences of the following types of gene mutations: Sil...