Medically important microorganisms 2010. doc
... host cell for replication. Many types of virus have a preference or tropism for cells of a particular species or tissue type. Artificially cultivated cells of either primary (finite lifespan) or continuous (immortalised tumour cells) cell type are required for viral culture. Viral growth is usually ...
... host cell for replication. Many types of virus have a preference or tropism for cells of a particular species or tissue type. Artificially cultivated cells of either primary (finite lifespan) or continuous (immortalised tumour cells) cell type are required for viral culture. Viral growth is usually ...
Cell wall structure and biogenesis
... Structure and Function in Fungal Cell Walls. In A. Moran, P. Brennan, O. Holst and F. von Itzstein (eds.) Microbial Glycobiology: Structures, Relevance, and ...
... Structure and Function in Fungal Cell Walls. In A. Moran, P. Brennan, O. Holst and F. von Itzstein (eds.) Microbial Glycobiology: Structures, Relevance, and ...
cell membrane
... • 1. What are some things that can pass through a window screen? • 2. What are some things that cannot pass through a window screen? Why is it important to keep these things from moving through the screen? • 3. The cell is surrounded by a cell membrane, which regulates what enters and leaves the cel ...
... • 1. What are some things that can pass through a window screen? • 2. What are some things that cannot pass through a window screen? Why is it important to keep these things from moving through the screen? • 3. The cell is surrounded by a cell membrane, which regulates what enters and leaves the cel ...
How Cells Maintain Homeostasis
... • In an Animal Cell, it is the boundary between the inside and outside of the cell. • In a Plant Cell, it is between the cell wall and the inside of the cell • It is crucial in maintaining the cell’s homeostasis!! ...
... • In an Animal Cell, it is the boundary between the inside and outside of the cell. • In a Plant Cell, it is between the cell wall and the inside of the cell • It is crucial in maintaining the cell’s homeostasis!! ...
THE STOMATA
... contributed by the microfibril cellulose that surround the wall of the cell. The two guard cells are fused at their end allowing the cell to bend as they expand. The diff. causes the outer wall elongates more than the inner wall when the cell is in turgor pressure. The presence of chloroplast ...
... contributed by the microfibril cellulose that surround the wall of the cell. The two guard cells are fused at their end allowing the cell to bend as they expand. The diff. causes the outer wall elongates more than the inner wall when the cell is in turgor pressure. The presence of chloroplast ...
nakuru district sec
... 7 a)(i) A group of undifferentiated cell in plants which are capable of continuous initotic cell division; (1 mark). (ii) Thin cell walls; - Dense cytoplasm; - No vacuoles; (3 marks) b) Secondary Thickening in flowering plants. Secondary thickening results into an increase in girths/width; due to t ...
... 7 a)(i) A group of undifferentiated cell in plants which are capable of continuous initotic cell division; (1 mark). (ii) Thin cell walls; - Dense cytoplasm; - No vacuoles; (3 marks) b) Secondary Thickening in flowering plants. Secondary thickening results into an increase in girths/width; due to t ...
Cell Transport
... d. What is the impact of water on life processes? (i.e. osmosis and diffusion) LEQ4: _________________________________________________________________ Structure: Cell/Plasma Membrane Composed of two ___________________ layers (bilayer) There are other molecules embedded in the membrane (_________, ...
... d. What is the impact of water on life processes? (i.e. osmosis and diffusion) LEQ4: _________________________________________________________________ Structure: Cell/Plasma Membrane Composed of two ___________________ layers (bilayer) There are other molecules embedded in the membrane (_________, ...
Human Cells
... o Stem cells can continue to divide o Stem cells can differentiate into specialised cells of one or more types. o All the genes of embryonic stem cells have the potential to be switched on, so the cell is capable of differentiating into all the types of cells in the body o During embryological devel ...
... o Stem cells can continue to divide o Stem cells can differentiate into specialised cells of one or more types. o All the genes of embryonic stem cells have the potential to be switched on, so the cell is capable of differentiating into all the types of cells in the body o During embryological devel ...
Homework 2 BSC 1005 Fall 2011
... a. the surface area limits the amount of molecular exchange that can take place between the cell and its surroundings. b. a small surface area allows the cell to protect itself from foreign organisms. c. a large surface area makes the cell more fragile. d. the surface area determines the genetic cap ...
... a. the surface area limits the amount of molecular exchange that can take place between the cell and its surroundings. b. a small surface area allows the cell to protect itself from foreign organisms. c. a large surface area makes the cell more fragile. d. the surface area determines the genetic cap ...
Pupil Outcomes - Cathkin High School
... o Stem cells can continue to divide o Stem cells can differentiate into specialised cells of one or more types. o All the genes of embryonic stem cells have the potential to be switched on, so the cell is capable of differentiating into all the types of cells in the body o During embryological devel ...
... o Stem cells can continue to divide o Stem cells can differentiate into specialised cells of one or more types. o All the genes of embryonic stem cells have the potential to be switched on, so the cell is capable of differentiating into all the types of cells in the body o During embryological devel ...
Turnover of human fat cells and their lipid content
... Decreased turnover of fat cells and their lipid contents is associated with insulin resistance, dyslipidemia and altered metabolic function of fat cells. Low fat cell turnover leads to adipose hypertrophy which is linked to insulin resistance in subcutaneous fat and to dyslipidemia in visceral fat. ...
... Decreased turnover of fat cells and their lipid contents is associated with insulin resistance, dyslipidemia and altered metabolic function of fat cells. Low fat cell turnover leads to adipose hypertrophy which is linked to insulin resistance in subcutaneous fat and to dyslipidemia in visceral fat. ...
Higher Human Biology Outcomes UNIT 1 Human Cells
... Differentiation and stem cells Division and differentiation in human cells o Cellular differentiation is the process by which an unspecialised cell becomes altered and adapted to perform a specialised function as part of a permanent tissue o Specialised cells are organised into tissues and organs o ...
... Differentiation and stem cells Division and differentiation in human cells o Cellular differentiation is the process by which an unspecialised cell becomes altered and adapted to perform a specialised function as part of a permanent tissue o Specialised cells are organised into tissues and organs o ...
SC Biology State Standards
... Standard B-4: The student will demonstrate an understanding of the molecular basis of heredity. B-4.1 Compare DNA and RNA in terms of structure, nucleotides, and base pairs. B-4.2 Summarize the relationship among DNA, genes, and chromosomes. B-4.3 Explain how DNA functions as the code of life and t ...
... Standard B-4: The student will demonstrate an understanding of the molecular basis of heredity. B-4.1 Compare DNA and RNA in terms of structure, nucleotides, and base pairs. B-4.2 Summarize the relationship among DNA, genes, and chromosomes. B-4.3 Explain how DNA functions as the code of life and t ...
ROYAL PUBLIC SCHOOL
... 8. What is the green pigment present in plastids called? a. Chlorophyll b. chromophyll c. xanthophyll d. carotenoids 9. What name is given to the unit of inheritance in living organisms which controls the transfer of a hereditary characteristic from parents to offspring? a. Gene b. chromosome c. nuc ...
... 8. What is the green pigment present in plastids called? a. Chlorophyll b. chromophyll c. xanthophyll d. carotenoids 9. What name is given to the unit of inheritance in living organisms which controls the transfer of a hereditary characteristic from parents to offspring? a. Gene b. chromosome c. nuc ...
Passive Transport
... Result: Water moves equally in both directions and the cell remains same size! (Dynamic Equilibrium) ...
... Result: Water moves equally in both directions and the cell remains same size! (Dynamic Equilibrium) ...
Pro versus eukaryotic cells_Lesson Plan
... Introductory Activity: Students will compare and contrast diagrams of an animal cell with a bacterial cell using a Venn Diagram. Notes: Students will take notes about the differences between prokaryotic and eukaryotic cells, noting that both types can cause infection. Lab/Analysis: Students will be ...
... Introductory Activity: Students will compare and contrast diagrams of an animal cell with a bacterial cell using a Venn Diagram. Notes: Students will take notes about the differences between prokaryotic and eukaryotic cells, noting that both types can cause infection. Lab/Analysis: Students will be ...
Cell Growth and Binary Fission
... •The natural penicillins are based on the original penicillin-G structure. Penicillin-G types are effective against gram-positive strains of streptococci, staphylococci, and some gram-negative bacteria such as meningococcus. •Penicillinase-resistant penicillins, notably methicillin and oxacillin, ar ...
... •The natural penicillins are based on the original penicillin-G structure. Penicillin-G types are effective against gram-positive strains of streptococci, staphylococci, and some gram-negative bacteria such as meningococcus. •Penicillinase-resistant penicillins, notably methicillin and oxacillin, ar ...
TRANSPORT - TeacherWeb
... *materials that are small enough to pass through the bilipid layer are: oxygen, carbon dioxide, water, amino acids, monosaccharides, fatty acids, glycerol, salts. * larger materials must first be “recognized” by the proteins in the cell membrane and then brought into or out of the cell. REMEMBER – p ...
... *materials that are small enough to pass through the bilipid layer are: oxygen, carbon dioxide, water, amino acids, monosaccharides, fatty acids, glycerol, salts. * larger materials must first be “recognized” by the proteins in the cell membrane and then brought into or out of the cell. REMEMBER – p ...
Ch 6 Powerpoint - Plain Local Schools
... respiration occurs, a process that most organisms use to access energy B. ATP is the main energy source for the cell and is the end result of cellular respiration C. Mitochondria have many infoldings which allows for a larger surface area which results in more sites for respiration to take place ...
... respiration occurs, a process that most organisms use to access energy B. ATP is the main energy source for the cell and is the end result of cellular respiration C. Mitochondria have many infoldings which allows for a larger surface area which results in more sites for respiration to take place ...
cells - Plain Local Schools
... The client's renal status has continued to deteriorate. Creatinine clearance is 6 ml per minutes and the client is showing evidence of retaining fluid despite conservative measure to restrict fluid. Blood Pressure is 160/96 (Normal is 120/80), weight has increased by 5 lbs. Since admission, swelling ...
... The client's renal status has continued to deteriorate. Creatinine clearance is 6 ml per minutes and the client is showing evidence of retaining fluid despite conservative measure to restrict fluid. Blood Pressure is 160/96 (Normal is 120/80), weight has increased by 5 lbs. Since admission, swelling ...
tunica (CZT) - The Virtual Plant
... Domains in apical development The apical meristem is one of the simplest-looking structures in the higher plant, yet, the processes controlling its differentiation sequencing is not yet fully understood. We recognize that changes have to be effected in the way in which neighbouring cells communicate ...
... Domains in apical development The apical meristem is one of the simplest-looking structures in the higher plant, yet, the processes controlling its differentiation sequencing is not yet fully understood. We recognize that changes have to be effected in the way in which neighbouring cells communicate ...
permeability of cell membrane (red blood cell
... through the cell membrane from areas of high concentration to low concentration. Organic molecules, such as glucose and amino acids and certain ions move through the plasma membrane either with or against a concentration gradient by active transport, which requires energy expenditure by the cell. Mo ...
... through the cell membrane from areas of high concentration to low concentration. Organic molecules, such as glucose and amino acids and certain ions move through the plasma membrane either with or against a concentration gradient by active transport, which requires energy expenditure by the cell. Mo ...
Vacuolar Myopathies: Ultrastructural Studies Benefit Diagnosis
... discussion of etiologic and diagnostic information on each entity, the original case study is returned to and concluded based on the findings. The selected entities covered from the differential diagnosis are summarized below: Glycogen Storage Disease Type II (Pompe Disease) This disease is caused b ...
... discussion of etiologic and diagnostic information on each entity, the original case study is returned to and concluded based on the findings. The selected entities covered from the differential diagnosis are summarized below: Glycogen Storage Disease Type II (Pompe Disease) This disease is caused b ...
Vacuole
... moving ions (especially potassium) across the tonoplast membrane. Turgor is created by moving water by osmosis into the vacuole exerting more pressure against the cell wall. ...
... moving ions (especially potassium) across the tonoplast membrane. Turgor is created by moving water by osmosis into the vacuole exerting more pressure against the cell wall. ...
Cellular differentiation
In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.