BIO 353 EXAM REVIEW QUESTIONS WITH
ACCURATE SOLUTIONS 2026
▶ The number of carbons in the esterified fatty acid tails is ............ and
ranges between............ and ................. Answer: even and 14-24
▶ loss of the cell wall. Answer: occurs both for the endosymbiosis theory
and for the endomembrane system
▶ The primitive protoprokaryote likely acquired motility before it lost the cell
wall. Answer: false
▶ Peroxisomes likely originated from endosymbiosis. Answer: false
▶ Peroxisomes increased the fitness of the primitive protoprokaryote by
removing toxic oxygen in the ancient earth. Answer: true
▶ The endomembrane system supposedly resulted in the formation of the
nuclear envelope, endoplasmic reticulum, Golgi apparatus and primary
lysosomes. Answer: true
▶ In primary culture all cells survive.. Answer: false
▶ Aseptic technique is no longer as important after a cell line is
established.. Answer: false
▶ In culture, the cell often switches from breaking down glucose to
breaking down ______.. Answer: glutamine
▶ Of the following, select the 3 most crucial ions required for maintaining
proper osmolarity and membrane potential?. Answer: chloride, sodium,
potassium
▶ When a cell is anchorage-dependent for growth, it can then go through
the cell cycle when it is suspended. Answer: false
ACCURATE SOLUTIONS 2026
▶ The number of carbons in the esterified fatty acid tails is ............ and
ranges between............ and ................. Answer: even and 14-24
▶ loss of the cell wall. Answer: occurs both for the endosymbiosis theory
and for the endomembrane system
▶ The primitive protoprokaryote likely acquired motility before it lost the cell
wall. Answer: false
▶ Peroxisomes likely originated from endosymbiosis. Answer: false
▶ Peroxisomes increased the fitness of the primitive protoprokaryote by
removing toxic oxygen in the ancient earth. Answer: true
▶ The endomembrane system supposedly resulted in the formation of the
nuclear envelope, endoplasmic reticulum, Golgi apparatus and primary
lysosomes. Answer: true
▶ In primary culture all cells survive.. Answer: false
▶ Aseptic technique is no longer as important after a cell line is
established.. Answer: false
▶ In culture, the cell often switches from breaking down glucose to
breaking down ______.. Answer: glutamine
▶ Of the following, select the 3 most crucial ions required for maintaining
proper osmolarity and membrane potential?. Answer: chloride, sodium,
potassium
▶ When a cell is anchorage-dependent for growth, it can then go through
the cell cycle when it is suspended. Answer: false
