Micro Unit 4 Notes - Nutley Public Schools
... • Meningitis is an infection of the membranes (meninges) surrounding the brain and spinal cord. • The bacteria most often responsible for bacterial meningitis are common in the environment and can also be found in your nose and respiratory system without causing any harm. • Sometimes meningitis occu ...
... • Meningitis is an infection of the membranes (meninges) surrounding the brain and spinal cord. • The bacteria most often responsible for bacterial meningitis are common in the environment and can also be found in your nose and respiratory system without causing any harm. • Sometimes meningitis occu ...
Transporting Materials Across the Cell Membrane
... Cell Membrane • Many substances can pass freely through the cell membrane, such as water, CO2 and O2 • Other substances are too large to fit through the pores and need help. Carrier proteins aid in moving large molecules from the outside to the inside of the cell. This is called… ...
... Cell Membrane • Many substances can pass freely through the cell membrane, such as water, CO2 and O2 • Other substances are too large to fit through the pores and need help. Carrier proteins aid in moving large molecules from the outside to the inside of the cell. This is called… ...
Cells Powerpoint
... • SMOOTH ER IS NOT Covered with RIBOSOMES and processes LIPIDS and CARBOHYDRATES. The Smooth ER is involved in the synthesis of steroids in gland cells, the regulation of calcium levels in muscle cells, and the breakdown of toxic substances by liver cells. ...
... • SMOOTH ER IS NOT Covered with RIBOSOMES and processes LIPIDS and CARBOHYDRATES. The Smooth ER is involved in the synthesis of steroids in gland cells, the regulation of calcium levels in muscle cells, and the breakdown of toxic substances by liver cells. ...
membrane notes - hrsbstaff.ednet.ns.ca
... leads to less fluidity. If the tails are unsaturated they have double bonds and these bonds make the fatty acids ‘kinky”!!! the kinks prevent the phospholipids from packing closely-this leads to greater fluidity. Cholesterol is needed in the membrane to reduce the fluidity at normal temperatures. In ...
... leads to less fluidity. If the tails are unsaturated they have double bonds and these bonds make the fatty acids ‘kinky”!!! the kinks prevent the phospholipids from packing closely-this leads to greater fluidity. Cholesterol is needed in the membrane to reduce the fluidity at normal temperatures. In ...
A group of organs that work together to carry out a specific job A
... genetic material ______ Log-like structures that pull the chromosomes apart during division ______ Modifies, sorts, and packages molecules for storage or transport out of cell ______ Network of microtubules & microfilaments to support cell and give it shape ______ Double bilayer that surrounds the g ...
... genetic material ______ Log-like structures that pull the chromosomes apart during division ______ Modifies, sorts, and packages molecules for storage or transport out of cell ______ Network of microtubules & microfilaments to support cell and give it shape ______ Double bilayer that surrounds the g ...
File
... • The plasma membrane folds in on itself and then pinches off to form an intracellular vesicle Endocytosis occurs in one of three ways. • Phagocytosis • Pinocytosis • Receptor-mediated endocytosis Phagocytosis During phagocytosis, the material being taken into the cell is large, such as a food parti ...
... • The plasma membrane folds in on itself and then pinches off to form an intracellular vesicle Endocytosis occurs in one of three ways. • Phagocytosis • Pinocytosis • Receptor-mediated endocytosis Phagocytosis During phagocytosis, the material being taken into the cell is large, such as a food parti ...
Cellular Reproduction Study Guide
... 4) Describe the make-up of a chromosome? Draw a single chromosome. 5) What is a homologous pair of chromosomes? How are they similar? Different? 6) How does a diploid cell differ from a haploid cell? ...
... 4) Describe the make-up of a chromosome? Draw a single chromosome. 5) What is a homologous pair of chromosomes? How are they similar? Different? 6) How does a diploid cell differ from a haploid cell? ...
View Poster
... Objective & Hypotheses Programmed cell “suicide”—apoptosis—occurs in normal cells that turn cancerous (Böttger et al, 2008). The primary mechanism of apoptosis occurs in the nucleus using a special protein: p53, but secondary action may occur in the mitochondria, mediated by a certain enzyme: HAUSP ...
... Objective & Hypotheses Programmed cell “suicide”—apoptosis—occurs in normal cells that turn cancerous (Böttger et al, 2008). The primary mechanism of apoptosis occurs in the nucleus using a special protein: p53, but secondary action may occur in the mitochondria, mediated by a certain enzyme: HAUSP ...
TOpic 2 Revision - REVISION-IB2
... (b) Some cells similar to that of the diagram were grown in a culture. Radioactive amino acids were added to the solution in which they were being grown. The radioactivity acts as a label on the amino acid so that it can be detected wherever they are. This radioactive label allows amino acids to be ...
... (b) Some cells similar to that of the diagram were grown in a culture. Radioactive amino acids were added to the solution in which they were being grown. The radioactivity acts as a label on the amino acid so that it can be detected wherever they are. This radioactive label allows amino acids to be ...
Chapter 8A
... dish surface and divide. When cells have formed a complete single layer, they stop dividing (densitydependent inhibition). ...
... dish surface and divide. When cells have formed a complete single layer, they stop dividing (densitydependent inhibition). ...
Notes Protein Synthesis
... • If one tRNA variety existed for each codon, there would need to be 61 tRNAs, there are only about 45, some can bind to more than codon • The rule for base pairing is not as strict between the third base of a codon and an anticodon, this relaxation of base-pairing rules is called wobble • Ex: a tRN ...
... • If one tRNA variety existed for each codon, there would need to be 61 tRNAs, there are only about 45, some can bind to more than codon • The rule for base pairing is not as strict between the third base of a codon and an anticodon, this relaxation of base-pairing rules is called wobble • Ex: a tRN ...
A Tour of the Cell
... Cytoplasm/Cytosol: inside the membrane of the cell aqueous semi-fluid in which structures and organelles are found. The pH of the cytoplasm kept constant with buffers. Plasmamembrane: all cells are surrounded by a hydrophobic structure called the plasmamembrane. The plasmamembrane is semi-permeable ...
... Cytoplasm/Cytosol: inside the membrane of the cell aqueous semi-fluid in which structures and organelles are found. The pH of the cytoplasm kept constant with buffers. Plasmamembrane: all cells are surrounded by a hydrophobic structure called the plasmamembrane. The plasmamembrane is semi-permeable ...
Evolution of Life
... however, have a framework of filaments and fibers that supports the cell structure called the cytoskeleton. Second, plant cells contain _____________________, which are able to absorb energy from the sun. This energy is then used to power a reaction that is able to produce two very important produ ...
... however, have a framework of filaments and fibers that supports the cell structure called the cytoskeleton. Second, plant cells contain _____________________, which are able to absorb energy from the sun. This energy is then used to power a reaction that is able to produce two very important produ ...
PDF
... during which cell-cell adhesions disassemble, cells migrate and, when migration is complete, cell-cell adhesions reassemble. On p. 2023, Nicholas Harden and colleagues reveal how the Scribble complex (which contains Scrib, a polarity regulator) and Pak (a Cdc42/Rac effector kinase; Cdc42 and Rac reg ...
... during which cell-cell adhesions disassemble, cells migrate and, when migration is complete, cell-cell adhesions reassemble. On p. 2023, Nicholas Harden and colleagues reveal how the Scribble complex (which contains Scrib, a polarity regulator) and Pak (a Cdc42/Rac effector kinase; Cdc42 and Rac reg ...
Cell Transport - pdecandia.com
... metabolism, and other activities Ex: hormones – made in one part of the body and carried to other parts where they perform their function • Involves signal molecules that are bound by receptor proteins on receiving cells Receptor protein: membrane protein (embedded in lipid layer) that binds to a sp ...
... metabolism, and other activities Ex: hormones – made in one part of the body and carried to other parts where they perform their function • Involves signal molecules that are bound by receptor proteins on receiving cells Receptor protein: membrane protein (embedded in lipid layer) that binds to a sp ...
Document
... describe the role of viruses in causing diseases such as human immunodeficiency virus (HIV) and influenza B.5.A Describe the stages of the cell cycle, including DNA replication and mitosis, and the importance of the cell cycle to the growth of organisms B.9.A Compare the structures and functions of ...
... describe the role of viruses in causing diseases such as human immunodeficiency virus (HIV) and influenza B.5.A Describe the stages of the cell cycle, including DNA replication and mitosis, and the importance of the cell cycle to the growth of organisms B.9.A Compare the structures and functions of ...
Cells
... Structure: hair-like organelles that extend from the surface of cells – When they are present in large numbers on a cell they are called cilia – When they are less numerous and longer they are called flagella – Both organelles are composed of nine pairs of microtubules arranged around a central pair ...
... Structure: hair-like organelles that extend from the surface of cells – When they are present in large numbers on a cell they are called cilia – When they are less numerous and longer they are called flagella – Both organelles are composed of nine pairs of microtubules arranged around a central pair ...
BIOLOGY 12 UNIT 1a – Cell Structure
... Chloroplasts use energy from the sun to make carbohydrates (food) for plants in a process called photosynthesis. When this food is eaten, it is digested into glucose (and other nutrients). The glucose is used to make ATP (in the mitochondria) in a process called aerobic cellular respiration. ATP is ...
... Chloroplasts use energy from the sun to make carbohydrates (food) for plants in a process called photosynthesis. When this food is eaten, it is digested into glucose (and other nutrients). The glucose is used to make ATP (in the mitochondria) in a process called aerobic cellular respiration. ATP is ...
Cell
... a) cell-the basic structural & functional biological unit of all living organisms. -contains a nucleus and a variety of organelles enclosed by a limiting membrane b) organelle-are small specialized structures that perform specific metabolic functions for the cell as a whole - the metabolic machinery ...
... a) cell-the basic structural & functional biological unit of all living organisms. -contains a nucleus and a variety of organelles enclosed by a limiting membrane b) organelle-are small specialized structures that perform specific metabolic functions for the cell as a whole - the metabolic machinery ...
Basic Structure of a Cell
... 93. Proteins made by rough ER are for _____________ out of the cell. 94. Proteins are made in ________________ on the rough ER surface and then ______________ into the interior of the ER to be modified and transported. 95. ______________ ER lacks ribosomes and is attached to the ends of the ...
... 93. Proteins made by rough ER are for _____________ out of the cell. 94. Proteins are made in ________________ on the rough ER surface and then ______________ into the interior of the ER to be modified and transported. 95. ______________ ER lacks ribosomes and is attached to the ends of the ...
White Blood Cells
... Mature and immature neutrophils, lymphocyte, monocytes, eosinophils and basophils make up the leukocytes (WBCs) found on the blood of most mammals. Each type of cell plays an important role in the body’s defense system , and the total concentration of each type is extremely valuable in the diagnosis ...
... Mature and immature neutrophils, lymphocyte, monocytes, eosinophils and basophils make up the leukocytes (WBCs) found on the blood of most mammals. Each type of cell plays an important role in the body’s defense system , and the total concentration of each type is extremely valuable in the diagnosis ...
Cell nucleus
In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.