Prokaryotuc and eukarytotic cell & endocrine and exocine glands Essay

Prokaryotuc and eukarytotic cell & endocrine and exocine glands - Essay Example Prokaryotic organisms like bacteria have cell walls that have peptidoglycan. Bacteria are unique organisms that have this material inside their cell walls and no any other organism has this material. Some of the eukaryotic cells have cell walls for example eukaryotic animal cells do not have cell walls while eukaryotic plant cells as well as fungi have cell walls that consist of cellulose and chitin (Black 93). Prokaryotic cells lack a nucleus but there is a central nuclear region. In addition, prokaryotes also have a single molecule of DNA that is circular in shape. Nucleus is the most important and unique part of eukaryotic cells and maximum DNA of the cell is present in the nucleus and multiple molecules are present (Campbell and Farrell 16). In prokaryotes, DNA is located in the nuclear region that does not have any membrane while in eukaryotes DNA is enclosed in Nucleus covered by nuclear envelope (Black 80). Eukaryotic organisms are bigger in size as compared to prokaryotic org anisms for example eukaryotic organisms consist of size from1 micrometer to 1 millimeter while prokaryotic organism consists of size from 1 to 10 micrometers. Eukaryotic animals have centrioles and centrosome while eukaryotic plants, fungi, algae and prokaryotic organisms do not have centrioles and centrosome. ... example, all eukaryotic cells have mitochondria except oddball parasites and all eukaryotic plants have chloroplasts that help in the food making process with the help of photosynthesis (Campbell and Farrell 19). Binary fission is the cell division process in prokaryotes while in eukaryotes, cells divide through mitosis and meiosis. Prokaryotic cells divide by asexual reproduction but eukaryotes divide by asexual as well as sexual reproduction (Black 80). Prokaryotes as well as eukaryotes can be autotrophic (generating food themselves) as well as heterotrophic (getting food from other sources). Examples of prokaryotes are bacteria while plants and animals can be taken as examples of eukaryotes. Autotrophic prokaryotes are photosynthetic (who make organic food using energy from sunlight) as well as chemosynthetic (who make organic food using energy from inorganic chemicals) while eukaryotes are photosynthetic but not chemosynthetic (Black 81). Difference between Endocrine and Exocrine Glands Human body consists of two types of glands that are endocrine and exocrine. Endocrine system contains glands that are responsible for discharging their secretions. Endocrine glands are responsible for discharging their secretions within the body while exocrine glands secrete on the body surface. The secretions that are secreted by the glands are the hormones (Clark 229). There are number of hormones that move from here to there in the body in the flow of blood. Level of hormones is influenced due to minerals in the blood, stress, infection in the body and misbalance in the fluid. Both exocrine glands and endocrine glands are formed from epithelial tissue (Clark 229). Exocrine glands secrete with the support of ducts while in endocrine glands, no distinct ducts are present for

Transformational and Shared Instructional Leadership Assignment

Transformational and Shared Instructional Leadership - Assignment Example A total of 24 schools have been nationally chosen to participate in the research. Of these 24 schools, 8 schools offer elementary education, 8 offer middle school education and another 8 offer the high school education. In an attempt to keep accordance with the data that is largely structured in a multilevel fashion, the researchers have resorted to use the Hierarchical Linear Modeling (HLM) as the primary technique for analysis. As a result of the study, the researchers have concluded that the transformational leadership is a compulsory element for the instructional leadership, though it is insufficient. In order to improve the quality of teaching and education of a school and make the students show good performance and achieve higher grades, it is imperative that the two leadership conceptions, i.e. the shared instructional and the transformational leadership exist simultaneously and mutually integrate into the leadership. Their coexistence has a substantial impact of the overall p erformance of the school, the personnel associated with it and the students. â€Å"A Review of Transformational School Leadership Research 1996-2005† (Leithwood and Jantzi, 2005). Theoretical Synthesis: Transformational leadership has conventionally remained a subject of universal debate particularly with reference to its application in schools. Various studies have been done in the past to study the impact of transformational leadership on the environment of studies. However, the number of studies that have conventionally attempted to investigate the moderators and antecedents of the transformational style of leadership ion schools is very low. This particular research conducted an in-depth analysis of 32 such researches and empirical studies that have been conducted in the past from 1996 to 2005 in order to understand the nature of transformational leadership in schools, the different variables which regulate the effects of the transformational leadership on the students in an educational setup as well as the antecedents of this type of leadership. As a result of the study, researchers have reached the conclusion that the transformational leadership has obvious effects on the achievement of students in their studies and their involvement in the various activities of school, though the effect is largely indirect in nature. There is a whole range of variables that influence the impact of the transformational leadership on the performance of students which include but are not limited to the culture of the school, the commitment of mentors with their job as well as the level of satisfaction they maintain with the job of teaching. â€Å"Transformational Leadership: Industrial, Military, and Educational Impact† (Bass, 1998). Theoretical Synthesis: Leadership theory has long been focusing on the transactional exchange between the followers and a leader until the transformational-transactional form of leadership surfaced to reflect good leadership prac tices. In this research, a total of 11 questions which affect the application of the new paradigm of transformational-transactional leadership have been put forth. The 11 questions are discussed in separate chapters. Various aspects of the transformational-transactional leadership have been comprehensively discussed in this research which include its contribution to the commitment of followers, its role in relieving the stress of followers, effect of