Osmosis is the movement of Answer water through a selectively permeable membrane down its concentration gradient
The ability of an organism to sense and react to changes in its body illustrates Answer responsiveness
In negative feedback mechanisms, changes away from the normal state Answer st...
ECPI Final Exam Bio 112 questions with
correct answers
Osmosis is the movement of Answer ✔✔ water through a selectively permeable membrane down its concentration gradient
The ability of an organism to sense and react to changes in its body illustrates Answer✔✔ responsiveness
In negative feedback mechanisms, changes away from the normal state Answer✔✔ stimulate changes in the opposite direction to restore normal levels
Which of the following are living organisms simplest unit? Answer ✔✔ cells
An organic compound always contains Answer ✔✔ carbon and hydrogen
What best describes the function of the skeletal system? Answer ✔✔ support and movement
Part of the cell cycle when DNA replicates: Answer ✔✔ Interphase
DNA Answer✔✔ stores genetic information, including instructions for enzymes that synthesize fats and carbohydrates
An atom is electrically neutral when Answer ✔✔ the number of electrons equals the number of protons Homeostasis is the Answer ✔✔ tendency of the body to maintain a stable internal enviroment
Which of the following lists best illustrates the idea of increasing levels of complexity? Answer ✔✔ organelles, cells, tissues, organs, organ systems
An ion can be described as Answer ✔✔ an electrically charged particle
A sagittal section divides the body into Answer ✔✔ right and left portions
the cell membrane is said to be: Answer ✔✔ selectively permeable
Which of the following must the human body obtain from the environment in order
to survive? Answer ✔✔ water
Loose thread like strands of DNA and protein: Answer ✔✔ Chromatin
Which of the following is the most abundant inorganic substance in the body? Answer✔✔ Water
What is the purpose of mitosis? Answer ✔✔ Division of the cell nucleus
Cytoplasm consists of Answer ✔✔ Cytosol and organelles
What is necrosis? Answer ✔✔ Cell death that occurs due to tissue damage The organelle is a "tail" used for locomotion in cells such as bacteria or sperm Answer✔✔ flagella
This organelle is a network of interconnected membranes and acts like the cell's factory; forming sacs and canals that synthesizes protein and lipid molecules Answer✔✔ endoplasmic reticulum
The midportion of the abdomen is called the _________ region Answer ✔✔ umbilical
In a covalent bond Answer ✔✔ atoms share a pair or more of electrons
Phase of mitosis when new nuclear envelopes form around the two new nuclei and chromosomes unwind back to chromatin Answer ✔✔ Telophase
The activities of an anatomist consist of _________, whereas those of a physiologist consist of ________ Answer ✔✔ observing the structure of body parts; studying the functions of body parts
An isotonic solution Answer ✔✔ has the same osmotic pressure as the cells in the solution
Phase of mitosis when the chromosomes line up in the middle of the cell: Answer✔✔ Metaphase
Which of the following illustrates a positive feedback mechanism? Answer ✔✔ Uterine contractions during childbirth The formula H2O refers to Answer ✔✔ an inorganic molecule
In a ________ solution, cells swell and may burst Answer ✔✔ Hypotonic
"Powerhouse" of the cell that makes a lot of ATP: Answer ✔✔ Mitochondria
Stages of the cell cycle unfold in the following order: Answer ✔✔ interphase, mitosis, cytoplasmic division, differentiation
tara discovers a rapidly growing lump that doubles in size over a month. A doctor does a biopsy and discovers it's a form of cancer, which can result if Answer ✔✔ mitosis/ cell division is too frequent
Each of the following are examples of a lipid-based molecule except for: Answer✔✔ protein
The atomic number of an atom equals the number of Answer ✔✔ protons
The fingertips are _______ in relationship to the wrist Answer ✔✔ distal to
What is the chemical symbol for sodium? Answer ✔✔ Na
Which structure is found in the axial portion of the body? Answer ✔✔ Head
Which subatomic particle has a negative charge? Answer ✔✔ electron
In a _______ solution, cells shrink and shrivel Answer ✔✔ hypertonic
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