PORTAGE BIOCHEMISTRY MODULE 1 (LATEST
2025/2026 UPDATE), ACTUAL EXAM/TEST
QUESTIONS AND 100% VERIFIED ANSWERS| A+
GRADE(100%Guarantee Pass)
Definition of biochemistry - answer-chemistry of life; how properties of
organisms relate to their molecules
What are the 3 things biochemists study? - answer-1. The relationship between
structure and function of biomolecules
2. Chemical reactions of organisms (metabolism)
3. Communication within and among organisms
What are bulk elements? - answer-Elements that are abundant in living
organisms
What are trace elements? - answer-Elements that are less abundant in
organisms but still crucial for life
Name the bulk elements (10) - answer-H, Na, K, Ca, C, N, O, P, S, Cl
Name the trace elements (13) - answer-Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo,
W, Se, I
, H2O makes up ___% or more of living things - answer-70%
Some plant species are ___% water by mass - answer-90%
What is the "medium" of life and why? - answer-Water, it is found in all cells
and multicellular organisms
What is the shape and bond angle of water? Explain its bond angle - answer-
Water is shown in a BENT structure with 104.5 degree bond angle due to the
repulsion of electrons in chemical bonds.
Name the four common molecular shapes of simple compounds, their bond
angles, and their common description - answer-Linear: 180 degrees, common
in CO2 and triple bonds
Trigonal Planar: 120 degrees, common with double bonds
Trigonal Pyramidal: 107.5 degrees, common in nitrogen atoms
Tetrahedral: 109.5 degrees, common with carbon atoms with all single bonds
What is organic chemistry? - answer-focuses on chemical and physical
properties of carbon compounds
2025/2026 UPDATE), ACTUAL EXAM/TEST
QUESTIONS AND 100% VERIFIED ANSWERS| A+
GRADE(100%Guarantee Pass)
Definition of biochemistry - answer-chemistry of life; how properties of
organisms relate to their molecules
What are the 3 things biochemists study? - answer-1. The relationship between
structure and function of biomolecules
2. Chemical reactions of organisms (metabolism)
3. Communication within and among organisms
What are bulk elements? - answer-Elements that are abundant in living
organisms
What are trace elements? - answer-Elements that are less abundant in
organisms but still crucial for life
Name the bulk elements (10) - answer-H, Na, K, Ca, C, N, O, P, S, Cl
Name the trace elements (13) - answer-Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo,
W, Se, I
, H2O makes up ___% or more of living things - answer-70%
Some plant species are ___% water by mass - answer-90%
What is the "medium" of life and why? - answer-Water, it is found in all cells
and multicellular organisms
What is the shape and bond angle of water? Explain its bond angle - answer-
Water is shown in a BENT structure with 104.5 degree bond angle due to the
repulsion of electrons in chemical bonds.
Name the four common molecular shapes of simple compounds, their bond
angles, and their common description - answer-Linear: 180 degrees, common
in CO2 and triple bonds
Trigonal Planar: 120 degrees, common with double bonds
Trigonal Pyramidal: 107.5 degrees, common in nitrogen atoms
Tetrahedral: 109.5 degrees, common with carbon atoms with all single bonds
What is organic chemistry? - answer-focuses on chemical and physical
properties of carbon compounds
