the cellular life and the ATP shuts down the plasma membrane. The cells will began to leak, and sodium will start to leak into the call and potassium will leak out. Question C. All intracellular organelles have membranes as a part of their structure. The breakdown of the membranes of these structures affect the function of the heart because the special calcium ATP had stopped moving calcium from the cytosol into the endoplasmic reticulum of his cardiac muscle cells. As the intracellular calcium
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measurement of quantity or numbers pH- the measurement of acidity or basicity in an aqueous solution Prokaryotic- single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any membrane-bound organelles Eukaryotic- has true nucleus, nuclear pores, and organelles Organelles- a specialized part of a cell having specific fucntions, cell organ Diffusion- means of passive transport, three types: facilitated, simple, and channel Osmosis- the movement of water from high potential
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The structure and functions of Cell The purpose of this report is to explain the structure and functions of Cell. Cell is the basic unit of life and it contains other membrane-bound organelles structures that carry out specific functions necessary for normal cellular operation. Organelles have a wide range of roles and functions that include everything from producing hormones and enzymes to providing energy for Cells. Organelles Location Structure Functions Nucleus Centre - Nucleus is spherical
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different in shape, size and also has few different organelles which function in different way. One of the main difference between plant cells and animal cells is that plant cells have a cell wall, whereas animal cells don't. Instead of cell wall animal cells have cell membrane but the plant cells have both cell wall and cell membrane. The cell wall in plant cells work as a protection layer outside the cell membrane which also provides structure for the plant cell. It is seen as a shape giver to
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effectively to about 1,000 times the size of the actual specimen At higher magnifications, the image blurs. Light microscope can resolve individual cells, it cannot resolve much of the internal anatomy, especially the organelles. ELECTRON MICROSCOPE To resolve smaller structures we use an electron microscope (EM) which focuses a beam of electrons through the specimen or onto its surface. Because resolution is inversely related to wavelength used, electron microscopes with shorter wavelengths
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UNIVERSITI TUNKU ABDUL RAHMAN CENTRE FOR FOUNDATION STUDIES FOUNDATION IN SCIENCE JANUARY 2015 FHSC1214 FUNDAMENTALS OF CELL BIOLOGY TUTORIAL 6 CELL ORGANELLES I Instructor’s Guide: 1. Standard answers are not encouraged. Discuss with the students and lead them to the correct answer. 2. Allow and push the students to express and explain the answers, at the same time, correct their mistakes or concepts. 3. If the tutorial questions are not yet covered in the lecture,
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the cell organelles. This is due to chromatin. The Nucleus: Every cell in the body has a nucleus with the exception of the red blood cells. The nucleus is the central part of the cell and is contained within a membrane similar to the plasma membrane in which has tiny pores in which some substances can pass through. The nucleus is usually darker than the rest of the cell organelles. This is due to chromatin. Smooth endoplasmic reticulum: Smooth endoplasmic reticulum is an organelle found in
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substances across membranes. 9. What is an organelle? Which organelle is a processing, packaging and shipping center for proteins and lipids? 10. Where would you find the nucleolus? What happens there? 11. What is the role of the ribosome? 12. Which organelle digests macromolecules, worn out cell parts, debris and disease-causing microbes? 13. What structures are associated with cell movement? 14. What is the most significant difference in structure between rough and smooth ER? What type of
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Outline the roles of membranes at the surface of cells and within cells (10 marks) Both the cell surface membrane and the membranes surrounding certain organelles have the same basic structure and similar functions. There are 5 major roles of membranes including separating cell contents from the outside environment; separating cell components from cytoplasm; cell recognition and signalling; holding the components of some metabolic pathways in place and regulating the transport of materials into
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following headings : | Structure and Function of Animal Cell organelles ,Structure of Tissues , Function of Tissues, Main Organs of the Body, Analysing Examples of Organs and Tissues. | Task 1. | | Design a tabular column to explain the main structural features/components of a typical animal cell, and the functions of the main components of an animal cell as seen under the electron microscope. (L.O1,A.C1.1) | | Name of Organelle | Structural Features |
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