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root tips - Oxford Academic
root tips - Oxford Academic

... nutrients into root, and the root pressure was measured continuously using the probe. ...
Symplasmic fields in the tunica of the shoot
Symplasmic fields in the tunica of the shoot

... how these gradients and hypothetical signal networks are positioned in the cellular matrix of the AM. Importantly, the proliferating AM restricts pattern formation to its periphery and maintains an undifferentiated centre (e.g. Sawhney et al., 1981; Steeves and Sussex, 1989) which suggests the prese ...
Symplasmic fields in the tunica of the shoot
Symplasmic fields in the tunica of the shoot

... how these gradients and hypothetical signal networks are positioned in the cellular matrix of the AM. Importantly, the proliferating AM restricts pattern formation to its periphery and maintains an undifferentiated centre (e.g. Sawhney et al., 1981; Steeves and Sussex, 1989) which suggests the prese ...
Colorado Agriscience Curriculum
Colorado Agriscience Curriculum

... Cell division is a process of reproducing cells that occurs during growth, repair and development of tissues. Slide 6 – What is the cell cycle? Repeating sequence of cellular growth and division throughout the life of an organism Slide 7 – Stages of the Cell Cycle We should begin our discussion of t ...
Differential induction of cytotoxicity and apoptosis by influenza virus
Differential induction of cytotoxicity and apoptosis by influenza virus

... greater than for clone 7a. It is important to note that these experiments were essentially carried out under single-cycle conditions with an inoculum that infected over 90 % of the cells. Further (multicycle) replication would be minimal, as liberated virus would be largely non-infectious for MDCK c ...
Cell Transport and Homeostasis PowerPoint
Cell Transport and Homeostasis PowerPoint

Euglena Coloring
Euglena Coloring

... The Euglena Euglena are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyta. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglena usual ...
Euglena - hrsbstaff.ednet.ns.ca
Euglena - hrsbstaff.ednet.ns.ca

... Page 1 of 2 ...
10–2 Cell Division
10–2 Cell Division

... Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size of a cell affect how efficiently materials get to all parts of a cell? Work with a partner to complete this activity. 1. On a sheet of paper, make a drawing of a cell ...
The Physiology of Gibberellin-Induced Elongation
The Physiology of Gibberellin-Induced Elongation

... ogy of this process has progressed slowly. Progress has been hampered by both meth· odological and conceptual limitations, particularly by the lack of an appropriate test system. Experiments have been conflned largely to studies with whole plants (I, 2) and to studies with excised sections which sho ...
EspF review - Newcastle University Staff Publishing Service
EspF review - Newcastle University Staff Publishing Service

... proteins, termed effectors, into the cells of their host. One group of bacterial pathogens, the attaching and effacing (A/E) family, targets the mammalian intestinal tract, where they cause histopathological lesions on the apical surface of host enterocytes (51). A/E pathogens, which include enterop ...
the cell cycle of symbiotic chlorella
the cell cycle of symbiotic chlorella

... was starved. This was tested by feeding hydra 8, 15 and 22 days after beginning starvation, and examining the number of autospores produced by dividing algae. Controls in each case were 3-day starved hydra fed at the same time; algal division was examined 48 h after feeding since there is a delay in ...
The Control of Arabidopsis thaliana Growth by Cell
The Control of Arabidopsis thaliana Growth by Cell

... proteins (Torres Acosta et al., 2011); and (2) SIAMESE-RELATEDs, named after their founding member SIAMESE, which is phylogenetically even more distantly related to metazoan Kip/Cip proteins (Churchman et al., 2006; Peres et al., 2007). At the functional level, constitutive overexpression in transge ...
CELL: THE UNIT OF LIFE
CELL: THE UNIT OF LIFE

Reference
Reference

... We have established the core laboratory facilities at NCKU, in the past three years, which are essential for the success of the project. Deployment of larger instruments such as mass spectrometers, confocal microscope, fluorescence and chemiluminescence analyzers, together with biochips allow the r ...
Lesson 15d Comparing Mitosis and Meiosis LP
Lesson 15d Comparing Mitosis and Meiosis LP

... J. Spindle fiber ________________27. What structure is produced when protein fibers radiate from centrioles? K. Cell Plate ________________28. What forms across the center of a cell near the end of telophase? B. Interphase ________________29. The period of cell growth and development between mitotic ...
Plant cell expansion: scaling the wall Fr´ed´eric Nicol and Herman H
Plant cell expansion: scaling the wall Fr´ed´eric Nicol and Herman H

... complexes. All other cell wall polysaccharides are synthesised in the Golgi apparatus and transported in vesicles to the cell surface. Xyloglucans are tightly bound to microfibrils by hydrogen bonds and form cross-links between them, thus constituting a load-bearing network. Only a small number of x ...
Cytosolic DNA Triggers Mitochondrial Apoptosis via DNA Damage
Cytosolic DNA Triggers Mitochondrial Apoptosis via DNA Damage

... able to inhibit cell death induction, indicating that it largely depended on the activity of caspases (Fig. 1E, 1F, Supplemental Fig. 1E). Importantly, we found DNA-induced cell death in 1205 Lu melanoma cells to be independent of secondary soluble factors, because the supernatant of cells transfect ...
Tissues Response to Injury
Tissues Response to Injury

... Reversible and irreversible cell injury leading to necrosis or apoptosis-are morphologic patterns of acute cell injury induced by various stimuli. subcellular alterations – in cell orgenelles and cytoskeleton, which occur largely as a response to more chronic or persistent injurious stimuli; intrace ...
Differentiation in plant epidermal cells
Differentiation in plant epidermal cells

... pollinating animals. In many organs these different functions are fulfilled simultaneously by the activities of different specialized cells, and for those cells to function effectively they must be distributed in a non-random pattern. The formation of this pattern has fascinated developmental biologist ...
Microbial Discovery Activity
Microbial Discovery Activity

... “wrong” cell parts (e.g., eukaryotic structures if trying to construct prokaryotic cells), or building scenarios for protozoa, viruses, and fungi to be used when discussing those organisms in class. Students themselves can also try to design scenarios for other groups to solve. The activity can be f ...
7-2 Eukaryotic Cell Structure
7-2 Eukaryotic Cell Structure

... Structures within a eukaryotic cell that perform important cellular functions are known as organelles. Cell biologists divide the eukaryotic cell into two major parts: the nucleus and the cytoplasm. The Cytoplasm is the portion of the cell outside the nucleus. Slide 3 of 49 Copyright Pearson Prentic ...
Kerr et al 2016_04_08 - OPUS at UTS
Kerr et al 2016_04_08 - OPUS at UTS

... contents of their cytoplasm into the extracellular milieu. Notably, throughout this process the overall structure of the nucleus is maintained with some degree of condensation similar to that observed during native lysis observed (Fig. 2B, arrows). Surprisingly, ablation of inclusions in HeLa cells ...
Induction of apoptosis by the Amsacta moorei entomopoxvirus
Induction of apoptosis by the Amsacta moorei entomopoxvirus

... or mitochondrial (intrinsic) pathways, which result in the activation of effector caspases. The active effector caspases, through cleavage of specific host proteins, are instrumental in directing subsequent morphological and biochemical changes associated with apoptosis. These changes include reduct ...
The Fundamental Unit of Life
The Fundamental Unit of Life

... Answer: Functional segments of DNA are called genes. 38. What is the function of chromatin material? Answer: The function of chromatin material is whenever the cell is about to divide, the chromatin material gets organised into chromosomes. 39. What are the main roles of nucleus? Answer: The nucleu ...
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Programmed cell death



Programmed cell-death (or PCD) is death of a cell in any form, mediated by an intracellular program. PCD is carried out in a regulated process, which usually confers advantage during an organism's life-cycle. For example, the differentiation of fingers and toes in a developing human embryo occurs because cells between the fingers apoptose; the result is that the digits are separate. PCD serves fundamental functions during both plant and metazoa (multicellular animals) tissue development.Apoptosis and autophagy are both forms of programmed cell death, but necrosis is a non-physiological process that occurs as a result of infection or injury.Necrosis is the death of a cell caused by external factors such as trauma or infection and occurs in several different forms. Recently a form of programmed necrosis, called necroptosis, has been recognized as an alternate form of programmed cell death. It is hypothesized that necroptosis can serve as a cell-death backup to apoptosis when the apoptosis signaling is blocked by endogenous or exogenous factors such as viruses or mutations.
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