DP Biology Vocabulary - 1.1 Introduction to cells
Essential vocabulary for the IBO DP Biology course
Terms in this set (23)
theory that states that all organisms are composed of cells, and that all cells come from pre-existing cells.
metric prefix 1/100th or 1 × 10-2.
Coarse focus dial
used to initially focus a light microscope on a specimen.
the alteration of a cell's morphology and physiology through changes in gene expression.
a property of a system that emerges from the interaction of the elements of the system.
the synthesis of a functional gene product, often protein, but also rRNA, tRNA, or snRNA.
an increase in physical size.
the process in which an organism regulates activities within cells and their bodies to keep conditions stable.
ratio of image size to actual size.
the sum of all of the chemical reactions that occur within an organism or within a cell.
metric prefix 1 × 10-6.
metric prefix 1 × 10-3.
metric prefix 1 × 10-9.
the part of the microscope that gathers light from the specimen and focuses it to produce a real image.
genus of single-celled ciliated organisms.
an approach to science that holds that a complex system can be best understood as the sum of its parts, and that variables can be studied in isolation.
in behavioural science, the behaviour that is the consequence of a stimulus.
a means of visually indicating the magnification of an image.
a degenerative eye disease that has been the target of stem cell research.
a relatively undifferentiated cell that can give rise to other types of cells and retains the ability to divide.
Surface area to volume ratio
a variable that decreases as cells grow, so that it sets a limit to the size of cells.
a level of organization that emerges due to the interaction of elements.
a group of cells with a common function and structure.