Chapter_3ol2
... • Mitosis is cell division in somatic cells. • Mitosis occurs during growth and repair/replacement of tissues. • The result of mitosis is two identical daughter cells that are genetically identical to the original cell. • Here’s the steps… ...
... • Mitosis is cell division in somatic cells. • Mitosis occurs during growth and repair/replacement of tissues. • The result of mitosis is two identical daughter cells that are genetically identical to the original cell. • Here’s the steps… ...
Transport Systems and Solutions
... movement of molecules from an area of lesser concentration to greater concentration movement is against the gradient requires energy (ATP) from the cell example: rolling a boulder up a hill types – pump mechanism; endocytosis; exocytosis ...
... movement of molecules from an area of lesser concentration to greater concentration movement is against the gradient requires energy (ATP) from the cell example: rolling a boulder up a hill types – pump mechanism; endocytosis; exocytosis ...
Chapter Three: Cells: The Basic Units of Life Teacher Notes Lesson
... -In 1858, Rudolf Virchow stated that all cells could form only from other cells. Because of this the third part of the cell theory was added. -Parts of the Cell Theory -All organisms are made of one or more cells. -The cell is the basic unit of all living things. -All cells come from existing cells. ...
... -In 1858, Rudolf Virchow stated that all cells could form only from other cells. Because of this the third part of the cell theory was added. -Parts of the Cell Theory -All organisms are made of one or more cells. -The cell is the basic unit of all living things. -All cells come from existing cells. ...
PROTIEN SYNTHESIS
... to ribosomes in the cytoplasm, where it serves as a template for protein synthesis. It is synthesized from a DNA template during the process of transcription. transfer RNA One of a class of RNA molecules that transport amino acids to ribosomes for incorporation into a polypeptide undergoing synthesi ...
... to ribosomes in the cytoplasm, where it serves as a template for protein synthesis. It is synthesized from a DNA template during the process of transcription. transfer RNA One of a class of RNA molecules that transport amino acids to ribosomes for incorporation into a polypeptide undergoing synthesi ...
LCHS Biology Quizdom Review
... 5. During protein synthesis, how much DNA is unzipped in order to code for the mRNA strand? A) Only one gene B) Several genes C) The entire DNA strand D) All of the above ...
... 5. During protein synthesis, how much DNA is unzipped in order to code for the mRNA strand? A) Only one gene B) Several genes C) The entire DNA strand D) All of the above ...
... carry deoxygenated blood from the heart to the lungs to be enriched with oxygen). → Veins: blood vessels with valves (prevents backflow) that carry blood to the heart from the body cells; most carry blood deoxygenated by the body cells (except for the pulmonary veins, which carry oxygen enriched blo ...
Milk Synthesis
... The epithelial cells need to synthetise components of milk that are not present in blood such as lipids (fats), some proteins and lactose (milk’s sugar). The cells control by the way the amount of each component in the milk. ...
... The epithelial cells need to synthetise components of milk that are not present in blood such as lipids (fats), some proteins and lactose (milk’s sugar). The cells control by the way the amount of each component in the milk. ...
Cell Cycle, DNA, and Protein Synthesis
... no growth factor is present. • Cancer begins as a single cell • This cell is normally found and destroyed by the body’s immune system. If not, this cell could divide into a mass of identical daughter cancer cells that: – Impair the function of one or more organs – malignant tumor • Cells can break o ...
... no growth factor is present. • Cancer begins as a single cell • This cell is normally found and destroyed by the body’s immune system. If not, this cell could divide into a mass of identical daughter cancer cells that: – Impair the function of one or more organs – malignant tumor • Cells can break o ...
Questions Ch 24
... 3) Ampicillin is a semi-synthetic antibiotic derivative of penicillin G. Ampicillin is acidresistant, whereas penicillin G is not resistant to acid. Why is this important? a) Ampicillin is resistant to β-lactamases. b) Ampicillin can be taken orally. c) Ampicillin is effective against Gram-negative ...
... 3) Ampicillin is a semi-synthetic antibiotic derivative of penicillin G. Ampicillin is acidresistant, whereas penicillin G is not resistant to acid. Why is this important? a) Ampicillin is resistant to β-lactamases. b) Ampicillin can be taken orally. c) Ampicillin is effective against Gram-negative ...
A1979HZ32700001
... elucidate the mechanism of the nuclear staining reaction. We were then able to publish the first cytochemical method for the direct visualization of histones (and related basic proteins), explain how it worked and provide some quantitative data, relating DNA to histone content of nuclei. "Since then ...
... elucidate the mechanism of the nuclear staining reaction. We were then able to publish the first cytochemical method for the direct visualization of histones (and related basic proteins), explain how it worked and provide some quantitative data, relating DNA to histone content of nuclei. "Since then ...
Midterm Review - Jupiter Files
... Observation (data) Conclusion Repeat Experiment Variable- the part of the experiment being tested Independent Variable- variable that changes or is manipulated during the experiment (time, temp, Ph, light intensity) Dependent variable- variable that is measured as a result or effect of the ...
... Observation (data) Conclusion Repeat Experiment Variable- the part of the experiment being tested Independent Variable- variable that changes or is manipulated during the experiment (time, temp, Ph, light intensity) Dependent variable- variable that is measured as a result or effect of the ...
ERT 101 Biochemistry
... Gel electrophoresis separate nucleic acids on the basis of molecular weight and 3-D structure in an electric field. The technique involves drawing DNA molecules, which have an overall negative charge, through a semisolid gel by an electric current toward the positive electrode within an electrophore ...
... Gel electrophoresis separate nucleic acids on the basis of molecular weight and 3-D structure in an electric field. The technique involves drawing DNA molecules, which have an overall negative charge, through a semisolid gel by an electric current toward the positive electrode within an electrophore ...
1 Stage
... Cytoplasm: The cytoplasm is a semifluid matrix that fills the space between the cell membrane and the nucleus. All vital events occur in the cytoplasm in a living organism. It generally forms a homogeneous transparent mass. Mitochondria: These are ellipsoidal or cudgel-shaped organelles of length 2– ...
... Cytoplasm: The cytoplasm is a semifluid matrix that fills the space between the cell membrane and the nucleus. All vital events occur in the cytoplasm in a living organism. It generally forms a homogeneous transparent mass. Mitochondria: These are ellipsoidal or cudgel-shaped organelles of length 2– ...
scientific method
... ______ uses a carrier protein to move particles from low to high concentration ______ uses a carrier protein to move particles from high to low concentration ______ moves small particles across a membrane ______ examples are endocytosis and exocytosis PHOTOSYNTHESIS and CELL RESPIRATION 38. Where do ...
... ______ uses a carrier protein to move particles from low to high concentration ______ uses a carrier protein to move particles from high to low concentration ______ moves small particles across a membrane ______ examples are endocytosis and exocytosis PHOTOSYNTHESIS and CELL RESPIRATION 38. Where do ...
Learning Objectives and Reading Lectures 23 – 25
... How subtle changes in receptor structure can affect the types of molecules that can bind to it. Master These Skills For a given drug, identify the main types of intermolecular forces with which it can interact with a receptor. Recognize common features of a drug and the endogenous agent. Lectu ...
... How subtle changes in receptor structure can affect the types of molecules that can bind to it. Master These Skills For a given drug, identify the main types of intermolecular forces with which it can interact with a receptor. Recognize common features of a drug and the endogenous agent. Lectu ...
2.1 Molecules to metabolism
... Molecular biology is a field of study that focuses on investigating biological activity at a molecular level. ...
... Molecular biology is a field of study that focuses on investigating biological activity at a molecular level. ...
Cell cycle
... A very good understanding of the concept of large exposed surface area and surface area to volume ratio is required. Be careful with the expression of this ratio. Eg. All exchange surfaces have a relatively large surface area. Single cells organisms or flat organisms have a large expose body surfa ...
... A very good understanding of the concept of large exposed surface area and surface area to volume ratio is required. Be careful with the expression of this ratio. Eg. All exchange surfaces have a relatively large surface area. Single cells organisms or flat organisms have a large expose body surfa ...
Essential Nutrients
... be polar because they have a negatively charged head (phosphate) and a positively charged tail (2 fatty acids). ...
... be polar because they have a negatively charged head (phosphate) and a positively charged tail (2 fatty acids). ...
Chapter 5: Homeostasis and Transport
... sodium gated channels of a nerve cell are stimulated by a chemical signal which causes them to open and allow sodium ions into the cell. Glucose molecules are too big to diffuse through the plasma membrane easily, so they are moved across the membrane through gated channels. In this way glucose diff ...
... sodium gated channels of a nerve cell are stimulated by a chemical signal which causes them to open and allow sodium ions into the cell. Glucose molecules are too big to diffuse through the plasma membrane easily, so they are moved across the membrane through gated channels. In this way glucose diff ...
Central Dogma WebQuest - Life Science
... 3. In a eukaryotic cell, transcription occurs in the nucleus, and translation occurs in the ______________. 4. Write the functions of the following forms of RNA: mRNA: ___________________________________________________________________________ tRNA: __________________________________________________ ...
... 3. In a eukaryotic cell, transcription occurs in the nucleus, and translation occurs in the ______________. 4. Write the functions of the following forms of RNA: mRNA: ___________________________________________________________________________ tRNA: __________________________________________________ ...
Unit 1 Objectives 2015
... 13. Why is DNA a good molecule for information storage? 14. How do the differences in the structure of DNA and RNA contribute to the difference in the functions of those molecules? 15. Explain how the sequence of amino acids in a protein determines each level of that protein’s structure. 16. Explain ...
... 13. Why is DNA a good molecule for information storage? 14. How do the differences in the structure of DNA and RNA contribute to the difference in the functions of those molecules? 15. Explain how the sequence of amino acids in a protein determines each level of that protein’s structure. 16. Explain ...
Cell-penetrating peptide
Cell-penetrating peptides (CPPs) are short peptides that facilitate cellular uptake of various molecular cargo (from nanosize particles to small chemical molecules and large fragments of DNA). The ""cargo"" is associated with the peptides either through chemical linkage via covalent bonds or through non-covalent interactions. The function of the CPPs are to deliver the cargo into cells, a process that commonly occurs through endocytosis with the cargo delivered to the endosomes of living mammalian cells.CPPs hold great potential as in vitro and in vivo delivery vectors for use in research and medicine. Current use is limited by a lack of cell specificity in CPP-mediated cargo delivery and insufficient understanding of the modes of their uptake.CPPs typically have an amino acid composition that either contains a high relative abundance of positively charged amino acids such as lysine or arginine or has sequences that contain an alternating pattern of polar/charged amino acids and non-polar, hydrophobic amino acids. These two types of structures are referred to as polycationic or amphipathic, respectively. A third class of CPPs are the hydrophobic peptides, containing only apolar residues, with low net chargeor have hydrophobic amino acid groups that are crucial for cellular uptake.The first CPP was discovered independently by two laboratories in 1988, when it was found that the trans-activating transcriptional activator (TAT) from human immunodeficiency virus 1 (HIV-1) could be efficiently taken up from the surrounding media by numerous cell types in culture. Since then, the number of known CPPs has expanded considerably and small molecule synthetic analogues with more effective protein transduction properties have been generated.