Dive Biology Terms Lesson 7

Independent Variable – In an experiment, the condition that is tested because it affects the outcome (results or DV) of the experiment
trachea – (plural, tracheae) The windpipe; the portion of the respiratory tube that has C-shaped cartilagenous rings and passes from the larynx to two bronchi.
Constants – The condition that do not change during an experiment
primary structure – the level of protein structure referring to the specific sequence of amino acids
Punnett squares – a chart used to visualize the possibilities of a genetic cross
organism – Multiple organ systems are organized into this level of life form.
Limiting Nutrient – The nutrient whose supply limits productivity
What happens when you add Lipids (fats and oils) to a sheet of paper? – Paper turns from Opaque to Transparent
biology – The "Science of Life" that studies all livings things
In the above picture, the structure indicated by the pointer is:
500. Parts of Blastocyst: – Thicker mass of cells becomes embryo.
Rest of blastocyst develops into membranes that surround, nourish and protect the embryo
basement membrane – Cells at the base of an epithelial layer are attached to this.
self protein – A protein on the surface of an antigen-presenting cell that can hold a foreign antigen and display it to helper T cells. Each individual has a unique set of these that serve as molecular markers for the body. Lymphocytes do not attack these unless the proteins are displaying foreign antigens; therefore, these mark normal body cells as off-limits to the immune system. The technical name for these is major histocompatibility complex (MHC) proteins.
In the аbоve picture, the structure indicаted by the pоinter is:
prostaglandins – Modified fatty acids that are produced by a wide range of cells.
autosomes – Any chromosome that is not a sex chromosome
Phagocytosis – A type of endocytosis in which a cell engulfs large particles or whole cells
Controlled experiment – Experiment where all variables are controlled except independent variable, allows you to determine cause and effect
Hox genes – Class of homeotic genes. Changes in these genes can have a profound impact on morphology.

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