Dive Biology Terms Lesson 26

Watson and Crick – Developed the double helix model of DNA.
Atom – Smallest unit of matter that still retains the properties of an element. Consist of 3 subatomic particles: proton, neutron, and electron.
How many chromosomes are in a human diploid cell? – 46
Biology – Scientific study of life
root pressure – As the active transport of minerals into the root increases its solute concentration, water continues to enter through osmosis. This ongoing process results in a continued net movement of water into the root cells. As pressure builds up, water and dissolved nutrients are pushed up the stem.
interphase – the period of time between cellular divisions
fluid mosaic model – depicts the membrane as a fluid structure with a "mosaic" of various proteins embedded in or attached to a double layer of phospholipids
monosaccharide – A simple sugar.
What is the correct order of the layers of the epidermis from superficial to deep?
What does the pancreas produce, and what does this do? – Pancreatic juice is produced and this contains:
Proteases for digesting proteins.
Lipase for digesting lipids.
Amylase to digest starch.
euglenoid movement – Expansion and contraction of the pellicle, which gives a euglenoid its shape, creating movement.
centromere – chromatids are attached to a _____________
phosphate group – part of a nucleotide
Protein – diverse molecule: can fight disease, be an enzyme, transport within and between cells
Thiols – organic compounds containing sulfahydryl groups.
Whаt is the cоrrect оrder оf the lаyers of the epidermis from superficiаl to deep?
Photosynthesis – A process in which solar radiation is chemically captured by chlorophyll molecules and through a set of controlled chemical reactions resulting in the potential chemical energy in the bonds of carbohydrate molecules.
Endemic Species – A species that is found in its originating location and is generally restricted to that geographic area.
2.1.2 What are the exceptions to cell theory? – skeletal muscle fibres are larger / are not typical cells;
fungal hyphae are (sometimes) not divided up into individual cells;
unicellular organisms can be considered acellular;
because they carry out all life functions;
some tissues large amounts of extracellular material that is not a cell;
eg vitreous humour of eye / mineral deposits in bone / xylem in trees
most tissues are composed entirely of true cells;

This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply