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TRU 2131 Final Exam Questions with Answer Rationales (2026/2027)

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This document contains questions and verified answers for TRU 2131 Final Exam. It includes detailed explanations, revision-focused content, and exam preparation material suitable for 2026/2027 students.

Institution
TRU Biol 2131
Course
TRU Biol 2131

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TRU 2131 Final Exam

Three polysaccharides composed of glucose - ANS-glycogen, starch, (shop energy)
cellulose (structural feature)

bond that holds sugars together - ANS-glycosidic bond

brilliant discipline microscopy - ANS-generates a dark photograph of an object over a mild
historical past

common functions of prokaryotes and eukaryotes - ANS-- Plasma membrane of similar
production
- Genetic records encoded in DNA the use of identical genetic code
- Similar mechanisms for transcription and translation of genetic information,
along with comparable ribosomes
- Shared metabolic pathways (e.G., glycolysis and TCA cycle)
- Similar equipment for conservation of chemical electricity as ATP (positioned within the
plasma membrane of prokaryotes and the mitochondrial membrane of
eukaryotes)
- Similar mechanism of photosynthesis (among cyanobacteria and inexperienced flora)
- Similar mechanism for synthesizing and placing membrane proteins
- Proteasomes (protein digesting structures) of similar construction (among
archaebacteria and eukaryotes)
- Cytoskeletal filaments constructed of proteins much like actin and tubulin

differential centrifugation - ANS-Procedure for separating mobile components according to their
size and density by way of spinning a mobile homogenate in a series of centrifuge runs. After
each run, the supernatant is removed from the deposited cloth (pellet) and spun once more at
progressively higher speeds.

Enzymes and entropy - ANS-enzymes decrease entropy of substrates (they orient the
substrates in a good manner)

enzymes and transition kingdom - ANS-Enzymes are able to decrease activation energies by
using binding extra
tightly to the transition country than to the reactants, which stabilizes
this activated complex, thereby lowering its power.

Exergonic vs endergonic - ANS-- exergonic: bad Δ G (energy exits the device)
- endergonic: advantageous Δ G (require electricity)

, fatty acids - ANS-lengthy, unbranched hydrocarbon chains with a unmarried carboxyl group at
one cease

functions of eukaryotic cells (no longer determined in prokaryotic) - ANS-- Division of cells into
nucleus and cytoplasm, separated by means of a nuclear envelope
containing complex pore systems
- Complex chromosomes composed of DNA and related proteins which might be
capable of compressing into mitotic systems
- Complex membranous cytoplasmic organelles (consists of endoplasmic
reticulum, Golgi complex, lysosomes, endosomes, peroxisomes, and
glyoxisomes)
- Specialized cytoplasmic organelles for cardio breathing (mitochondria) and
photosynthesis (chloroplasts)
- Complex cytoskeletal machine (along with actin filaments, intermediate
filaments, and microtubules) and associated motor proteins
- Complex flagella and cilia
- Ability to ingest particulate material by enclosure within plasma membrane
vesicles (phagocytosis)
- Cellulose‐containing cell partitions (in flora)
- Cell division the use of a microtubule‐containing mitotic spindle that separates
chromosomes
- Presence of two copies of genes in step with cell (diploidy), one from every discern
- Presence of three one of a kind RNA synthesizing enzymes (RNA polymerases)
-Sexual reproduction requiring meiosis and fertilization

fluorescence microscopy - ANS-uses a fluorescent dye that emits fluorescence whilst
illuminated with ultraviolet radiation

uses only light from sample to shape te photo

Fluorescence vs. Confocal Microscopy - ANS-fluorescence: light emitted by using sample
originates from molecules at some point of complete pattern

confocal: makes use of a pinhole in front of detector to dam light that doesn't originate from focal
plane, so photos no longer blurry

Four lessons of biological molecules - ANS-carbohydrates, lipids, proteins, nucleic acids

freeze fracture method - ANS-Technique wherein experimenters freeze a block of cells hastily,
then fracture the block to cut up the lipid bilayer and divulge the hydrophobic membrane interior.

Glycogen bonds - ANS-alpha 1,4 (chain of four) and alpha 1,6 (bureaucracy department)

glyoxysomes - ANS-Only in plants—lipids are converted to carbohydrates for growth

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TRU Biol 2131
Course
TRU Biol 2131

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