Bio 181 ASU Capco Exam 1 Rated A+ Already Passed 2023

Bio 181 ASU Capco Exam 1 Rated A+ Already Passed 2023 Write a few sentences that explain what limits an individual cell from becoming more complex. - Correct answer-Bimolecular machinery and division of labor The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the: - Correct answer-Kidney In cell Biology what can limit the progress of science? - Correct answer-Technology True or False: In you own multicellular body, cells with different functions have different DNA - Correct answer-False In order to examine cells which are smaller than can be detected by the human senses what needs to be used? - Correct answer-Technology True or False: The contractile vacuole of the paramecium is possibly an evolutionary precursor of the kidney - Correct answer-True A single celled organism: - Correct answer-Has limited amount of bimolecular machinery; must find food, shelter, mate, and reproduce What limits the paramecium from acquiring more complex functions: - Correct answerThe paramecium's bimolecular machinery limits cell growth True or False: In you own multicellular body, different cells in your body have a division of labor between them - Correct answer-True Compared to bacteria which of the cell below are not responsible for finding food: - Correct answer-Lymphocyte, Macrophage, fibroblast True or False: A cancer cell will be anchorage-dependent for growth and immortal - Correct answer-False Comparing a single-celled eukaryotic organism with a multicellular organism such as yourself identify the major difference - Correct answer-Division of Labor True or False: A cell that is anchorage-dependent for growth will also exhibit contact inhibition - Correct answer-True A cell that is itself an organism must have the minimum of what needs? - Correct answer-Food, shelter, mate, reproduce True or False: A paramecium swims by way of using flagella - Correct answer-False True or False: A normal cell is anchorage-dependent for growth and mortal - Correct answer-True True or False: The end of the retraction fiber touching the cell culture plate still contain the cell equivalent of super glue - Correct answer-True True or False: It is presumed that the peroxisomes evolved in these primitive protoeukaryotes to remove oxygen, which was toxic to the primitive cells - Correct answerTrue After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is: - Correct answer-Filopodia, lamellipodia, cell muscle, retraction fiber Why is it important to know the limitations of technology? - Correct answer-It is important to know the limitations of technology because knowing those limitations allows for new growth and development within technology. True or False: The ancient earth did not contain much oxygen - Correct answer-True True or False: A normal cell is mortal and anchorage dependent - Correct answer-Ture True or False: Loss of the cell wall was required for the endomembrane system theory - Correct answer-True True or False: TEM provides a thin, 2D section of the object being studied - Correct answer-True True or False: Fluorescence microscopy is a form of light microscopy - Correct answerTrue True or False: When cancer cells are crowded by surrounding cells, the cancer cells become spherical and they can still go through cell division - Correct answer-True What are the limitations of cell culture technique? - Correct answer-1) Not all cells grow in culture 2) Cells loose their histocyte - and 3D structure of the tissue is challenged 3) metabolism likely changes True or False: The cytoskeleton enabled the primitive cell to become motile - Correct answer-True What limits how big the cell can be? - Correct answer-The surface to volume ratio Motility improved the fitness of these early cells because: - Correct answer-It allowed them to move away from predators and towards food True or False: DNA in extant prokaryotic cells in circular - Correct answer-True True or False: The presumed 1st step in the transition of the primitive, proto-prokaryotic cell into the primitive, proto eukaryotic cell was the loss of the cell wall - Correct answerTrue True or false: Loss of the cell wall is required for the endosymbiotic theory - Correct answer-True True or False: In an extant prokaryotic cell, the outer boundary of life is the capsule - Correct answer-False True or False: Ribosomes bound to some of the membrane invaginations in the endomembrane theory - Correct answer-True True or False: The cytoskeleton gave rise to the nuclear envelope - Correct answerFalse The association of ribosomes with membrane investigations would support the _______________________. - Correct answer-Endomembrane theory Explain the evolutionary origin of the endoplasmic reticulum, Golgi apparatus, and vesicles. - Correct answer-Due to the endomembrane theory these organelles are though to have formed from invaginations in the plasma membrane. Amino Acids can be largely subdivided into two groups. What are the two groups? - Correct answer-hydrophilic and hydrophobic. Hydrophilic amino acids can be subdivided into basic, acidic, and neutral. Basic amino acids contribute a positive charge to the protein whereas acidic residues provide a negative charge. Neutral polar residues have side chains that are capable of forming hydrogen bonds. Hydrophobic amino acids may be subdivided into that are aliphatic and those containing aromatic rings. Amino acids contain aromatic rings are largely structural in function except for tyrosine which has a hydroxyl group. Cholesterol is _______ to have in biological membranes - Correct answer-Good For a protein to enter the endoplasmic reticulum as part of the endoplasmic reticulum's lumen or part of the endoplasmic reticulum's membrane: - Correct answer-A ribosome binds to mRNA and a short stretch of protein is synthesized that contains a signal sequence True or False: Facilitated diffusion uses a channel protein to let components move down their concentration gradient - Correct answer-True What is the difference between a triglyceride and phospholipid? - Correct answer-A triglyceride contains three fatty acids attached to glycerol backbone, while a phospholipid has two fatty acids plus a phosphate group attached to the glycerol True or False: Active transport uses ATP to move components in parallel with their concentration gradient, that is from a high concentration to a low concentration - Correct answer-False What are the orphaned organelles orphaned from? - Correct answer-endomembrane system True or False: It is a simple matter for a vesicle to form from the endoplasmic reticulum - Correct answer-False Explain the evolutionary origin of mitochondria - Correct answer-It is thought that a primitive proto-eukaryote engulfed a primitive proto-prokaryote good at making ATP and this organism lived inside this larger cell and began making ATP for the cell(endosymbiosis theory) True or False: A single pass trans-membrane protein that is an alpha helix can make a channel - Correct answer-False Explain how the vesicles are carried from the Golgi apparatus to the plasma membrane - Correct answer-Proteins are synthesized by ribosomes and enter the rER. Vesicles bud off from the rER and carry proteins to the Golgi apparatus; the Golgi apparatus modifies proteins; and the vesicles bud off from the Golgi and carry modified proteins to the plasma membrane True or False: The ER is contiguous with the Golgi apparatus - Correct answer-False We are made up of _________ water. - Correct answer-50-70% Draw a phospholipid and make sure the number of carbons are clearly identified - Correct answerWhat is the difference between a single-pass transmembrane protein and a 7-pass trans-membrane protein? - Correct answer-○ Because the inside of the phospholipid bilayer of the cell membrane is hydrophobic, this one hydrophobic peak indicates the glycophorin only cross the phospholipid bilayer once, and thus a single pass protein. Multi pass proteins cross the plasma membrane multiple times. The plasma membrane gets new lipids from: - Correct answer-None of the above True or Flase: The ER is contiguous with the nuclear envelope - Correct answer-True