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Biology Exam Questions And Accurate Answers
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Biology Exam Questions And AccurateAnswers 2024-2025
Which one of the following subdivisions of anatomy is incorrectly defined? regional -
study of all of the structures within an organ system
You are ordered to obtain a otic temperature on a small child. You will place the
thermometer _______. in the ear
You perspire when your body temperature increases. Your sweat glands are
responsible for a negative feedback that maintains body temperature. The sweat glands
are a(n) ________ in the negative feedback. - Answer effector
Of the following body cavities, which is the most inferior? - Answer pelvic
The anatomical position includes the following EXCEPT - Answer thumbs pointed
medially
Which of the following lists contains ONLY survival needs of the body? - Answer
nutrients, water, atmospheric pressure and oxygen
Smallest body cavity which contains the heart is __________ and largest is ____________ -
Answer Pericardial, ventral
A plane that divides the body into anterior and posterior parts. What is this plane called?
- Answer frontal
The visceral peritoneum - Answer covers the stomach
,Which of the following is not correctly matched with its system? - Answer digestive -
trachea
Expiration, or breathing out, is the process by which the body expels excessive carbon
dioxide from the blood. This is a type of _______________. - Answer excretion
An acid that has a pH of 6 contains ___ hydrogen ions compared to pure water. - Answer
10 times more
Which property of water is demonstrated by the fact that it takes a long time to heat
water? - Answer high heat capacity
________________ provide an easily used energy source for the body. - Answer
carbohydrates
Salivary amylase is an enzyme produced by the salivary glands that breaks down
carbohydrates. What happens to this enzyme as it follows the food into the stomach
where the pH drops to 2.5? - Answer The enzyme will denature and become inactive.
Which of the following building blocks is incorrectly paired with its compound? - Answer
amino acid; nucleic acid
When carbohydrates and proteins are synthesized from their constituent parts, the
molecule is formed by the - Answer removal of a water molecule between each two units
Phospholipids are the major constituents of the cell membrane's lipid portion. Since
water can be found both outside and inside a cell, which one of the following
arrangements of phospholipids makes the most sense? - Answer two layers of
phospholipids with the polar heads facing out on both sides
Which of the following statements is TRUE? - Answer When acids and bases are mixed
,they react with each other to form water and a salt.
Positron Emission Tomography (PET) scans are used to detect the spread of cancer. -
Answer True
The elbow is proximal to the shoulder. - Answer False
Glycogen, the storage form of glucose is primarily stored in smooth muscle and kidney
cells. - Answer False
Anatomy and Physiology The anatomical term for the posterior elbow is __________. -
Answer olecranal
The heart is ________ to the diaphragm.
Correct! - Answer Superior
What is formed when a base dissociates in water? - Answer OH- and cation
Give two functions of the lymphatic/immune system.
Your Answer:
Protection the body from illness (invaders), maintaining body fluid levels. - Answer
Return leaked fluid to blood vessels. Cleans up debris. House white blood cells. Protect
body by attacking foreign substances.
Name and explain the six levels of structural organization of the human body. - Answer
1. the chemical level is the simplest.- atoms and molecules 2. the cellular level - the cell
is the smallest living unit. Organelles are substructures of cells. 3. the tissue level -
Some organisms consist of a single cell, for multicellular organisms, this is the next level
of structure. A tissue is a group of cells that have a common function. There are four
basic tissue types, each contains different types of cells and extracellular material 4. the
organ level-made of at least 2 different tissue types; performs a unique activity (ex.
Heart pumps blood) 5. the organ system level- group of organs function together. There
, are 11 different organ systems. 6. organism level- a single living individual.
The two main body cavities are the dorsal and ventral body cavities. The body contains
other cavities, however. Name one of these. - Answer Synovial, middle ear, orbital,
nasal, oral and digestive
Water possesses 5 properties that are critical to life. Name and explain 4 of these. -
Answer 1. High heat capacity: water can absorb or lose a tremendous amount of heat
with very little change of temperature. This thermal inertia thus comes quite handy for
maintaining a fairly constant body temperature. 2. High heat of vaporization: it takes
high amounts of heat energy to change the state from liquid to gas in water. This makes
sweating an efficient means to rid the body of excess heat. 3. Polar solvent: water is also
known as the universal solvent. It easily dissolves ionic compounds and forms layers
around the large sized charged molecules. This also allows water to transport
substances throughout the body and to provide a medium in which biochemical
reactions can occur. 4. Reactivity: water is a reactant in most of the biochemical
reactions that occur within the body. 5. Cushioning: water is not compressible. It forms
protective cushions around some body organs-especially the brain and spinal cord.
Name one structure that could be found in the mediastinum: thymus, bronchi, superior
vena cava, esophagus, thymus gland, heart, great vessels, pericardial cavity, trachea,
aorta
Extra Credit: A transverse plane may also be referred to as a ___________________ plane.
horizontal
Extra Credit: The tooth for cutting is the incisor
Extra Credit: Feeling organs with your hands is called palpation
Which of the following would not affect the rate of facilitated diffusion? - Answer The
number of intracellular ATP
The net movement of water would be into the cell in a - Answer Hypotonic solution
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