BIOLOGY 1A03 Lecture Notes - Lecture 2: Hematopoietic Stem Cell Transplantation, Actual Size, Bone Marrow

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Dr.Da Silva

Document Summary

Cells: smallest unit of life, pre-existing cells. 2. 1. 2 discuss the evidence for the cell theory. Cells: taken from tissue, survived the longest. 2. 1. 3 state that unicellular organisms carry out all the functions of life. 2. 1. 4 compare the relative sizes of molecules, cell membrane thickness, viruses, bacteria, organelles and cells, using appropriate si units. 2. 1. 5 calculate the linear magnification of drawings and the actual size of specimens in images of known magnification. Magnification = image size (with ruler) actual size (according to scale bar) Actual size = size of image (with ruler) magnification. 2. 1. 6 explain the importance of the surface area to volume ratio as a factor limiting cell size. Size : surface area:volume ratio , volume faster than surface area. Large cell: cant absorb/ excrete fast enough, cant lose heat fast enough. 2. 1. 7 state that multicellular organisms show emergent properties.