Aqa Biology Gcse Units 2 And 3

carbohydrate – compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body
How do we distinguish between results(data) and conclusions? – Results are measurable data and a conclusion is a report about what you learned based on w the results
18.Cell membrane – double layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of a cell.
The Cambrian Period – is the earliest period of the Paleozoic era. Began with the Cambrian explosion, this explosion of life resulted in the representatives of most of the modern phyla being present.
1. Fibroblasts
2. Smooth muscle cells
3. Neuroglial cells – PDGF is a protein that acts as a mitogen for a broad range of cells including what cells?
Homogeneous mixture – mixture with a uniform composition throughout; aka solution.
Power of magnification – Degree of enlargement.
The watery liquid located in the anterior cavity of the eye is the
theory is – a well tested explanation
Chloroplast – a plastid containing chlorophyll, site of photosynthesis
Meiosis – A two‐phase nuclear division that results in the eventual production of gametes with half the normal number of chromosomes.
The wаtery liquid lоcаted in the аnteriоr cavity оf the eye is the
ecological niche – Sum total of a species' use of the biotic and abiotic resources.
If a reducing sugar is present in a solution which test should you use to confirm this, and what colour will the solution turn? – Use the Benedict's test, and the colour will be red if lots of reducing sugar is present. This involves adding the solution to Benedict's reagent and then HEATING it.

Benedict's test goes:
(no sugar ) No colour –> Green –> Yellow –> Red (most)

gametophyte – The haploid stage of a plant going through alternation of generations, in which it produces gametes through mitosis.

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