BIO 210 Final Exam Study Guide
Questions and Answers 2025
From exam 1 -Correct Answer ✔35 questions
A structure that is composed of two or more tissue types that work together to perform
specific functions forthe body is a(n) ________ -Correct Answer ✔organ
________ is the 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 heart's outer surface,
and parietal pericardium lines the heart's internal walls.
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
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 ________. -Correct Answer ✔sequence
of the nucleotides
A chemical reaction in which bonds are broken is usually associated with ________. -
Correct Answer ✔the release of energy
The numbers 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
The four elements that make up about 96% of body matter are ________. -Correct
Answer ✔carbon, oxygen, hydrogen, nitrogen
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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
✔the 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 ✔a
phospholipid bilayer surrounding the cell
Which structures are fingerlike projections that greatly increase the absorbing surface of
cells? -Correct Answer ✔microvilli
Which type of cell junction acts as anchors and distributes tension through a cellular
sheet and reduces the chance of tearing when it is subjected to great mechanical
stress? -Correct Answer ✔desmosomes
If cells are placed in a hypertonic solution with a solute impermeable to the cell
membrane, 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
Mitochondria ________. -Correct Answer ✔contain some of the DNA and RNA code
necessary for their own function
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