Lab Exam 2 BIOL 112 TAMU Questions With 100% Correct Answers 2026 Updated.

Lab Exam 2 BIOL 112 TAMU Questions
With 100% Correct Answers 2026
Updated.
Major Nutritional Modes (Lab5) - Answer



Domain Bacteria Classification (Lab5) - Answer Cell Shape

Colonial Morphology

Oxygen Requirements

Cell Wall

Metabolic&Chemical Activities

Molecular Biological Properties



EX: Cyanobacteria



Bacteria Oxygen Requirements (Lab5) - Answer Aerobic: require oxygen

Anaerobic: NO oxygen

Facultative: prefer oxygen, but can switch



Health Importance of Bacteria (Lab5) - Answer Pathogenic Bacteria

Symbiotic Bacteria

Food

Genetic Engineering



Ecological Importance of Bacteria (Lab5) - Answer Carbon Cycle: decomposition and
respiration



Oxygen Cycle: Photosynthesis and Respiration



Nitrogen Cycle: Nitrogen Fixation



Cyanobacteria (Lab5) - Answer Perform Oxygenic Photosynthesis



Heterocysts: used for Nitrogen Fixation

, Akinetes: spore like cells to help survive harsh conditions



Theory of Endosymbiosis - Answer 1. Mitochondria resulted from the engulfment of aerobic
bacteria.



2. Chloroplasts resulted from the engulfment of cyanobacteria.



Domain Archaea (Lab5) - Answer Prokaryotic

Harsh Conditions

EX:

Methanogens (ocean-water)

Halophiles (Salty)

Thermoacidophiles (Extreme Temp)



Domain Eukarya (Lab5) - Answer Protists



Eukaryotic (Membrane Bound Organelles)



Most Diverse Group



4 or 6 Supergroups:

Excavata

SAR Clade

Archaeplastida

Unikonta



Supergroup Excavata (Lab5) - Answer "most primitive" surviving Eukaryotes



"Excavated" feeding groove



modified mitochondira



2 or more flagella



Excavata Group Euglenozoan (Lab5) - Answer Many Lifestyles