Biology Chapter 1: Biology: Exploring Life

Motor cortex: – a vertical strip at the back of the frontal lobe. Sends signals to our muscles controlling our voluntary movements.
smooth endoplasmic reticulum – synthesizes proteins for export from the cell builds lipids
hairs in the nose – warm, moisten, and filter air
Hydrophobic – Larger molecules with nonpolar covalent bonds that usually don't dissolve in water.
single nucleotide polymorphism (SNP) – A variation in DNA sequence found within the genomes of at least 1% of a population.
covalent bond – a chemical bond that involves sharing a pair of electrons between atoms in a molecule
polygenic inheritance – groups of gene pairs act together to produce one trait (height, eye color)
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;
Where are amino acids, glucose, and vitamins reabsorbed in the nephron? – …
Where are ribosome proteins made? – rRNA (ribosomal RNA)
The surgical repair of a tendon and a muscle is called
Zooplankton – Tiny floating organisms that are either small animals or protozoa
development – changes an organism undergoes in its lifetime before reaching its adult form.
Development – The process by which the features of an organism – tissues, organs, organ systems, mature into fully functional systems (from zygote to adulthood) and then begin to decay (adulthood to death).
The surgicаl repаir оf а tendоn and a muscle is called
A biochemical catalyst that makes chemical reactions within cells possible, or SPEEDS THEM UP by lowering the activation energy. – Enzyme

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