ANTH-110 Lecture Notes - Lecture 7: Lignin, Chlorophyll, Hemoglobin
25 Mar 2016
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Document Summary
Cells are what make up all living things. Plant and animal are built up of cells that are stuck together. Contain haemoglobin which transports oxygen to other cells and around the body. Have biconcave shape for maximum surface area to allow more oxygen to be absorbed eiciently. Biconcave shape also allows for a lexible framework which means cells can squeeze through the thinnest of capillaries. Cells have a thin outer membrane allowing oxygen to difuse through easily. Have no nucleus so there is more room for oxygen to be carried in the cell and hence around the body. The tail of the sperm cell enables it to swim to the ovum and fertilise it. The head is streamlined also to aid swimming. The head contains genetic information and a nucleus and has an enzyme to help penetrate the egg cell membrane to allow fertilisation. The middle section immediately behind the head is packed with mitochondria to provide energy.
