BIO 210 MIDLANDS TECH FINAL EXAM | COMPREHENSIVE BIOLOGY STUDY
GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027
A structure that is composed of two or more tissues would be a(n) ________. - correct answer ✔✔Organ
Is most abundant chemical substance in the body , accounting for 60% to 80% of body weight - correct
answer ✔✔Water
Homeostasis is the condition in which the body maintains - correct answer ✔✔a dynamic state within an
unlimited range, depending on circumstances
Choose the following statement that is not completely correct regarding serous membranes. - correct
answer ✔✔Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls
of the heart
Place the following in correct sequence from simplest to most complex:
1. molecules
2. atoms
3. tissues
4. cells
5. organs - correct answer ✔✔2-1-4-3-5 (atoms, molecules, cells, tissues, organs)
What is a vertical section through the body dividing it into left and right called ? - correct answer
✔✔sagittal
The basic structural material of the body consists of . - correct answer ✔✔proteins
The genetic information is coded in dna by the regular alteration of sugar and phosphate molecules -
correct answer ✔✔Sequence of the nucleotides
A chemical reaction in which bonds are broken is usually associated with - correct answer ✔✔release
energy
The number listed represent the number of electrons in the first, second and third energy levels
respectively. On this basis, which of the following is an unstable or reactive atom? - correct answer
✔✔2,8,1
Which of the following would be regarded as an organic molecule? - correct answer ✔✔CH4 (methane)
The four elements that make up 96 % of body matter are - correct answer ✔✔Carbon, oxygen, hydrogen,
nitrogen
If atom X has an atomic number of 74 it would have which of the following? - correct answer ✔✔74
protons
, Which bonds often bind different parts of a molecule into a specific three-dimensional shape? - correct
answer ✔✔Hydrogen
Which vesicular transport process occurs primarily in some white blood cells and macrophages? - correct
answer ✔✔phagocytosis
In certain kinds of muscle cells, calcium ions are stored in - correct answer ✔✔Smooth ER
The rna responsible for carrying amino acids to ribosomes for protein formation is - correct answer
✔✔tRNA
Which of the following describes the plasma membrane? - correct answer ✔✔the phospholipid bilayer
surrounding the cell
Which structure are finger like projections that greatly increase surface of cells ? - correct answer
✔✔Microvilli
Which type of cell junction acts as anchors and distributes tension through a cellular sheet and reduces
chances of tearing when it is subjected to great mechanical stress ? - correct answer ✔✔Desmosomes
If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,
what could happen? - correct answer ✔✔The cells will lose water and shrink.
Which of the following is a function of a plasma membrane protein ? - correct answer ✔✔molecular
transport through the membrane
If the nucleotide or base sequence of the DNA strand used as a template for messenger RNA synthesis is
ACGTT, then what would be the sequence of bases in the corresponding mRNA? - correct answer
✔✔UGCAA
Passive membrane transport processes include ________. - correct answer ✔✔movement of a
substance down its concentration gradient
Mitchondria - correct answer ✔✔Contain some of the dna and rna code necessary for their own
function
Which of the following statements if most correct regarding the intracellular chemical signals known as
second messengers ? - correct answer ✔✔Cyclic amp and calcium may be second messengers
The functions of centrioles include - correct answer ✔✔organizing the mitotic spindle in cell division
A gene can best be defined as ________. - correct answer ✔✔a segment of DNA that carries the
instructions for one polypeptide chain
Which of the following is a principle of the fluid mosaic of cell membrane structure? - correct answer
✔✔Phospholipids form the bilateral that present a hydrophobic barrier impermeable to h20 soluble
molecules
GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027
A structure that is composed of two or more tissues would be a(n) ________. - correct answer ✔✔Organ
Is most abundant chemical substance in the body , accounting for 60% to 80% of body weight - correct
answer ✔✔Water
Homeostasis is the condition in which the body maintains - correct answer ✔✔a dynamic state within an
unlimited range, depending on circumstances
Choose the following statement that is not completely correct regarding serous membranes. - correct
answer ✔✔Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls
of the heart
Place the following in correct sequence from simplest to most complex:
1. molecules
2. atoms
3. tissues
4. cells
5. organs - correct answer ✔✔2-1-4-3-5 (atoms, molecules, cells, tissues, organs)
What is a vertical section through the body dividing it into left and right called ? - correct answer
✔✔sagittal
The basic structural material of the body consists of . - correct answer ✔✔proteins
The genetic information is coded in dna by the regular alteration of sugar and phosphate molecules -
correct answer ✔✔Sequence of the nucleotides
A chemical reaction in which bonds are broken is usually associated with - correct answer ✔✔release
energy
The number listed represent the number of electrons in the first, second and third energy levels
respectively. On this basis, which of the following is an unstable or reactive atom? - correct answer
✔✔2,8,1
Which of the following would be regarded as an organic molecule? - correct answer ✔✔CH4 (methane)
The four elements that make up 96 % of body matter are - correct answer ✔✔Carbon, oxygen, hydrogen,
nitrogen
If atom X has an atomic number of 74 it would have which of the following? - correct answer ✔✔74
protons
, Which bonds often bind different parts of a molecule into a specific three-dimensional shape? - correct
answer ✔✔Hydrogen
Which vesicular transport process occurs primarily in some white blood cells and macrophages? - correct
answer ✔✔phagocytosis
In certain kinds of muscle cells, calcium ions are stored in - correct answer ✔✔Smooth ER
The rna responsible for carrying amino acids to ribosomes for protein formation is - correct answer
✔✔tRNA
Which of the following describes the plasma membrane? - correct answer ✔✔the phospholipid bilayer
surrounding the cell
Which structure are finger like projections that greatly increase surface of cells ? - correct answer
✔✔Microvilli
Which type of cell junction acts as anchors and distributes tension through a cellular sheet and reduces
chances of tearing when it is subjected to great mechanical stress ? - correct answer ✔✔Desmosomes
If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,
what could happen? - correct answer ✔✔The cells will lose water and shrink.
Which of the following is a function of a plasma membrane protein ? - correct answer ✔✔molecular
transport through the membrane
If the nucleotide or base sequence of the DNA strand used as a template for messenger RNA synthesis is
ACGTT, then what would be the sequence of bases in the corresponding mRNA? - correct answer
✔✔UGCAA
Passive membrane transport processes include ________. - correct answer ✔✔movement of a
substance down its concentration gradient
Mitchondria - correct answer ✔✔Contain some of the dna and rna code necessary for their own
function
Which of the following statements if most correct regarding the intracellular chemical signals known as
second messengers ? - correct answer ✔✔Cyclic amp and calcium may be second messengers
The functions of centrioles include - correct answer ✔✔organizing the mitotic spindle in cell division
A gene can best be defined as ________. - correct answer ✔✔a segment of DNA that carries the
instructions for one polypeptide chain
Which of the following is a principle of the fluid mosaic of cell membrane structure? - correct answer
✔✔Phospholipids form the bilateral that present a hydrophobic barrier impermeable to h20 soluble
molecules
