Chapter 7 Biology Cell Structure & Function

mesoglea – the jelly-like substance that separates the epithelial cells in a cnidarian
gamete – HAPLOID; sperm or egg cell (a mature sexual reproductive cell)
centrosome – area that is important in the production of microtubules
Why would twins with identical DNA not be identical in every way? – Environmental and spiritual factors play a role in forming who people become. Genetics is only one part of an individual's make-up.
Double helix – "The DNA molecule, resembling a spiral staircase in which the paired bases form the steps and the sugar-phosphate backbones form the rails"
Active transport – Proteins that let molecules through the membrane and DO use energy
Hypotonic – a less concentrated solution; the solution contains less solute and more water
loop of Henle – In the vertebrate kidney, the portion of a nephron that helps concentrate the filtrate while conveying it between a proximal tubule and a distal tubule.
Which of the following areas receives blood directly from the pulmonary vein?
2.4.1 Draw and label a diagram to show the structure of membranes –
monomer – One of the repeating units of within a polymer or macromolecules. One "mer."
Which оf the fоllоwing аreаs receives blood directly from the pulmonаry vein?
Respiration – A series of enzyme controlled reactions resulting in the production of ATP from the chemical energy in glucose.
exponential growth – population growth that is unhindered because of the abundance of resources for an ever-increasing population
communities – different populations that live together in a defined area.
protonema – A thread-like chain of cells that grows from a spore, which then develops into a gametophyte.

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