Bio 161 exam - Study guides, Class notes & Summaries

Bio 161 Exam 1 Practice Questions and Answers (2024/2025) 100% Pass

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Endomembrane system components 1. Nuclear envelope 2. Endo Reticulum 3. Golgi aparatrus 4. Lysosomes 5. Plasma Membrane 6. Vesicles Endoplasmic Reticulum -extends off the nuclear envelope -a network of membrane bound compartments *rough ER and smooth ER* Exocytosis when a vesicles fuses with the plasma membrane *allows the vesicle to empty its contents into the extracellular space OR to deliver proteins embedded in the vesicle membrane to the plasma membrane* Endocytosis when a vesicles buds...

*The Origin of Life* Know the 7 criteria that must be met if something is to be considered alive. have an organized structure (anatomy) contain chemical reactions coordinated to perform vital functions (metabolism) be able to maintain constant internal environment (homeostasis) react to internal and external stimuli (responsiveness) be able to develop and grow (growth) be able to adapt to environmental changes (adaptability) be able to reproduce/pass on genetic information (reproduction)...

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Bio 161 Exam 4 Review Questions and Answers (2024/2025)

Secretion definition - the process of converting an electrical signal (presynaptic neuron) to a chemical signal (synapse) and then back to an electrical signal (post synaptic neuron) Synaptic Activity - allows neurons to communicate with one another What happens in Secretion? - the release of neurotransmitters Neurotransmitters - derived from amino acids (dopamine or norepinephrine) - derived from gas (acetylcholine) - carries chemical signal/messages Vesicle - stores neurotransmitters - tra...

Monomer A simple compound whose molecules can join together to form polymers Cation A positively charged ion Anion A negatively charged ion primary protein linear sequence of amino acids secondary protein structure coiling or folding of a polypeptide due to H-bonding between amino acids tertiary structure The third level of protein structure; the overall, three-dimensional shape of a polypeptide due to interactions of the R groups of the amino acids making up the chain. quaternary structur...