Learn the biological vocabulary for 1.1 Introduction to cells and test yourself using these flash cards.
- According to cell theory, living organisms are composed of cells.
- Organisms consisting of only one cell carry out all functions of life in that cell, e.g. Paramecium, Chlorella.
- Identifying the characteristics of living things (Mr H. Gren - metabolism, response, homeostasis, growth, reproduction, excretion & nutrition).
- Surface area to volume ratio is important in the limitation of cell size.
- Multicellular organisms have properties that emerge from the interaction of their cellular components, (Emergent properties).
- Specialised tissues can develop by cell differentiation in multicellular organisms.
- Differentiation involves the expression of some genes and not others in a cell.
- Stem cells can divide and differentiate along different pathways in embryonic development which makes stem cells useful for therapeutic uses (e.g. Stargardt's disease).
- There are ethical concerns about the use of embryo stem cells.
Calculating magnification and size
- Calculate the magnification of an electron microscope image from a scale bar.
- Calculate specimen size using a scale bar.
- Calculate specimen size using magnification.
These diagrams summarise the main sections of topic 1.1.
Test if you can draw something like these concept maps from memory.
Can you ask several questions about the points using command terms, e.g List, Describe, Outline, Explain,
How to calculate the size of a cell using the scale bar.
This quiz contains a set of multiple choice questions covering the topic. Explanations of each answer are displayed after you click to check the answer(s).