- Study guides, Class notes & Summaries

Biology 121 Chapter 5 Exam Questions with Correct Answers simple diffusion - ANSWER-substances move down concentration gradients accros a membrane facilitated diffusion - ANSWER-use specialized water channel proteins (Aquaporins) osmosis - ANSWER-diffusion of water across selectively permeable membranes aquaporin - ANSWER-specialized water channels isotonic - ANSWER-have equal concentrations of water and concentration of dissolved substances hypertonic - ANSWER-greater solute...

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2 pages

Written in 2024/2025

Grade A+

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Biology 121- Chapter 7 Questions and Answers release of chemical energy from sugars - ANSWER-glycolysis glycolysis -enzymes attach a phosphate to the 2 PGAL, and transfer 2 electrons and a H+ from each PGAL to NAD+; 2 PGA and 2 NADH are the result -glycolysis yields 2 NADH, 2 ATP, and 2 pyruvate for each glucose molecule -an enzyme (hexokinase) transfers a phosphate group from ATP to glucose, forming glucose-6-phosphate (trapped inside of the cell) -enzymes transfer a phosphate group...

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2 pages

Written in 2024/2025

Grade A+

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Biology 121 – Usask Test Questions and Answers Rated A or lake) endemic species live in only one or a very small number of places (eg island cosmopolitan species species that occur in most regions of the world - Many endemic species Galapagos island Biological adaptation Marine Iguana (spends part of time in sea) Blue-footed booby (adapted for diving) Greater frigates (adapted for aerial life) Aristotle - 500 spp. of vascular plants are endemic -92% of species of land birds are end...

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30 pages

Written in 2026/2027

Grade A+

MERCYTRISHIA

Biology 121 Exam 1 Questions with Correct Answers Emergent Properties - ANSWER-at each new level, novel properties emerge, due to the interaction of parts in an increasingly complex system Domains - ANSWER-Bacteria, Archaea, Eukarya Kingdom - ANSWER-first and largest category used to classify organisms Protists - ANSWER-organisms that do not fit into kingdoms The Scientific Method - ANSWER-Observation, Hypothesis, Experiment, Data Collection, Conclusion, and Retest (if needed) ...

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9 pages

Written in 2024/2025

Grade A+

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Biology 121 Exam 1 Questions with Complete Solutions hypothesis - ANSWER-a proposal intended to explain certain facts or observations deductive reasoning - ANSWER-predictions that can be used to test hypotheses made from inductive reasoning controlled experiments - ANSWER-designed to demonstrate effect of 1 variable by testing control groups and experimental groups that differ in only that one variable scientific theory - ANSWER-generated new hypotheses that is supported by large bod...

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8 pages

Written in 2024/2025

Grade A+

Freshy

Biology 121 EXAM 1 Chapters 1-3 Questions and Answers Organelle - ANSWER-A membrane-enclosed structure with a specialized function within a eukaryotic cell Molecule - ANSWER-A group of two or more atoms held together by covalent bonds Reductionism - ANSWER-Reduces complex systems to simpler components that are more manageable to study emergent properties - ANSWER-A trait that appears once the smaller parts are made/combined. For example the movement of amino acids into a protein....

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5 pages

Written in 2024/2025

Grade A+

Freshy

Biology 121 Exam 1 - CH 1-7 Questions and Answers Ionic Bond - ANSWER-A chemical bond resulting from the attraction between oppositely charged ions. Hydrogen Bond - ANSWER-A weak chemical bond formed when the slightly positive hydrogen atom of a polar covalent bond in one molecule is attracted to the slightly negative atom of a polar covalent bond in another molecule (H bonded to O or N). Van der Waals Forces - ANSWER-Weak attractions between molecules or parts of molecules that resul...

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3 pages

Written in 2024/2025

Grade A+

Freshy

Biology 121- Chapter 8 Complete Solutions any chromosome other than a sex chromosome; have same length, shape, and centromere location; hold information about the same traits - ANSWER-autosomes member of a pair of chromosomes that differs between males and females; differences determine sex - ANSWER-sex chromosomes XX - ANSWER-female XY - ANSWER-male in butterflies, moths, birds, and certain fishes, males have 2 identical sex chromosomes, and females don't - ANSWER-... iso...

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3 pages

Written in 2024/2025

Grade A+

Freshy

BIOLOGY 121 Chapter 1-4 Exam Questions with Latest Update Eukarya - ANSWER-contains unicellular AND multicellular eukaryotes (CONTAIN MEMBRANE NUCLEUS) scientific method - ANSWER-Observation, Hypothesis, prediction/Experiment, Data Collection, Conclusion observation - ANSWER-scientists use their senses to gather information about a phenomenon or natural event hypothesis - ANSWER-a tentative explanation for what was observed experiment - ANSWER-series of steps designed to test a ...

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5 pages

Written in 2024/2025

Grade A+

Freshy

Biology 121 A&P Exam 1 Questions and Answers Chemical bonds - ANSWER-the attractive forces that hold atoms together; most common are ionic and covalent bonds anabolism - ANSWER-small, simple molecules are built up into larger, more complex ones; gluconeogenesis is an example catabolism - ANSWER-Large, complex molecules in the body are broken down into smaller, simple ones; glycosis is an example dehydration synthesis - ANSWER-the creation of larger molecules from smaller monomers w...

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6 pages

Written in 2024/2025

Grade A

Freshy

Biology 121 (Exam 2) Correct Answers Recessive allele - ANSWER-requires the organism to have 2 copies of the allele to display the phenotype. Is masked or hidden from by the dominant alleles (expressed in lower case letters) Genotype - ANSWER-the genetic code Genotypes can be... - ANSWER-heterozygous or homozygous Heter(o)- - ANSWER-other or different (Aa) Homo(o)- - ANSWER-same (AA or aa) phenotype - ANSWER-the displayed trait. Ex: purple or white flowers Testcross - ANSW...

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5 pages

Written in 2024/2025

Grade A+

Freshy