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Cell Structure (1.1) Eukaryotes and Prokaryotes (1.1.1) All living things are made of cells, which can either be prokaryotic or eukaryotic. Animal and plant cells are eukaryotic. They have a: Cell membrane. Cytoplasm. Nucleus containing DNA . Bacterial cells are prokaryotic and are much smaller. They have a: . Cell wall. Cell membrane.
2.1.1 Cell structure Learners should be able to demonstrate and apply their knowledge and understanding of: The use of microscopy to observe and investigate different types of cell and cell structure in a range of eukaryotic organisms. The preparation and examination of microscope slides for use in light microscopy.
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A tissue is a group of specialised cells with a similar structure and function. They can be made of more than one type of cell. Examples include muscular tissue or epithelial tissue. Organs are formed from a number of different tissues, working together to produce a specific function.
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Cells vary in size and structure as they are specialized to perform different functions. But the basic components of the cell are common to all biological cells. This lesson
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Students should: 8.1 Know the structure and function of sensory, relay and motor neurones including the role of Schwann cells and myelination. 8.2 i) Understand how the nervous systems of organisms can cause effectors to respond to a stimulus. ii) Understand how the pupil dilates and contracts.
Chapter 1: The Science of Biology. In this chapter, you will review the definition of biology and the characteristics of living things. You will also learn how the study of science leads to an understanding of the natural world and see how science is done in the real-life.
The basic structure of a cell membrane is a lipid bi-layer of phospholipid molecules. The fatty acid por-tions of the molecules are hydrophobic and occupy the center of the membrane, while the hydrophilic phos-phate portions form the two surfaces in contact with intra- and extracellular fluid. This lipid bilayer of
