on which structures? DNA‚ the body’s genetic makeup‚ including Joseph’s predisposition to disease‚ is found primarily in the nucleus‚ but also in the mitochondria. To repair itself‚ the messenger RNA‚ having received a transcribed copy of DNA from the nucleus‚ binds to a ribosome and pairs with transfer RNA for protein synthesis and
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Comparing Cell Theory Parts to real world applications Cell Membrane compared to a house- Cellmembrane = screen on porch or window‚ lysosome is garbage disposal or recycling bin‚ vacuole is a water storage tank‚ er are hallways‚ mitochondria is a furnace or electrical generator‚ ribosomes could be the kitchen oven that’s making dinner‚ the nucleus is the parent Lysome- Cell Wall- probably be like a city wall surrounding the city‚ protecting it and defining the boundaries (osmotic control‚ protection
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The Different Roles of Macromolecules in Biology.There are four types of macromolecules that I am going to describe: Proteins‚ carbohydrates‚ lipids and nucleic acid. I will also describe the functions and why they are important in our bodies. Proteins Proteins are polymers of amino acids that are joined head-to-tail in a long chain that is then folded into a three-dimensional structure unique to each type of protein. The covalent linkage between two adjacent amino acids in a protein (or polypeptide)
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COMPARATIVE ANALYSIS OF THE DIFFERENT CELLULAR STRUCTURES CELLULAR STRUCTURES COMPOSITION (Biomolecule) LOCATION (in relation to the cell) NUMBER and DISTRIBUTION PRESENCE/ABSENCE IN ORGANISMS PROCESSES INVOLVED (functions) BODY STRUCTURE/ ORGAN functionally similar to and why? CELL MEMBRANE Glycoprotein Phospholipids Cholesterol Glycolipids Peripheral protein Integral protein Structural Protein Receptor Protein Transport Protein Outer Side of the Cell - Maintains the physical
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YOUR NOTES UNIT 2 NOTES DNA (deoxyribonucleic acid) DNA Functions • Stores genetic information and copies itself (replication) to pass on the information • Contains genes (instructions to make proteins) • Instructs cell’s activities DNA Structure • DNA is a polymer of nucleotides • Chromosomes (DNA strand + associated proteins ie. Histones wrap DNA around like a spool = condensed chromatin) ↓ genes (sections of a chromosome that codes for a protein) ↓ nucleotides (3 parts:
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PE 220 EXAM 2 NOTE Cards Term Which of the following is an amphipathic molecule? Definition integral membrane protein Term If the direction of the net flux of an ion is against its electrochemical gradient‚ then that transport is passive. Definition False Term Of the gradients listed below‚ which is the most accurate description of the force that ultimately determines the movement of ions across the membrane? Definition Electrochemical gradient Term Which of the following pairs of
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profiling. 7. Describe the Watson-Crick double-helix model of DNA structure and the base pairing rule. Explain the importance of complementary base pairing to the conservation of the base sequence in DNA. Contrast the structure and function of DNA and RNA. 8. In more detail than #7 above‚ describe the structure of DNA including the antiparallel strands‚ the 3’–5’ linkages‚ and the role of the hydrogen bonding between purines and pyrimidines. DNA replication (pages 136-137) 9. Describe the semi-conservative
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ribosomes) Organelles Cytoskeleton (non membrane bound) Support/shape‚ internal organization‚ movement of cell/ movement within cell. Microfilaments‚ microtubules‚ intermediate filaments Ribosomes (non membrane bound) Protein synthesis‚ catalyzes RNA reactions Nucleus (membrane bound) nuclear envelope‚ nuclear pores‚ nucleolus‚ DNA/ proteins organized into chromosomes/ chromatin Endoplasmic Reticulum (membrane bound) Tubular membranes and cisternae‚ Rough= works with ribosomes on protein synthesis
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GROUP 6 ANIMAL CELL and It’s Functions ANIMAL CELL: About animal cell usually have an irregular shape. are eukaryote cells‚ or cells with a membrane bound nucleus. DNA is housed within the nucleus. Also contain other membrane bound organelles‚ or tiny cellular structures that carry out specific functions necessary for normal cellular operation. smaller than plant cells. Cell Membrane is the outermost component of a cell. it is composed of 55% proteins‚ 25% phospholipids
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DNA QUESTION 1995: L. PETERSON/AP BIOLOGY The diagram below shows a segment of DNA with a total length of 4‚900 base pairs. The arrows indicate reaction sites for two restriction enzymes (enzyme X and enzyme Y). (A) Explain how the principles of gel electrophoresis allow for the separation of DNA fragments. (B) Describe the results you would expect from electrophoretic separation of fragments from the following treatments of the DNA segment above. Assume that the digestion
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