Biology 1161 Exam #1 review exam questions and answers (2024).docx, Exams of Biology

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Biology 1161 Exam

#1: review exam

questions and

answers (2024)

Anatomy The study of body structures Potential energy Stored energy Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:

Full screen Brainpower Read More Homeostasis A state of equilibrium or maintaining a stable internal environment Ionic bonding The type of chemical bonding involving the transfer of electrons Solute The substance being dissolved Atom The smallest particle of an element, composed of protons, neutrons, and electrons Anatomical position A standard body position in which the body is erect, feet slightly apart, and the palms facing forward Compound Two or more atoms or elements that are chemically united Solvent The substance that is doing the dissolving

The most common homeostatic control mechanism is the negative feedback mechanism. An example of a negative feedback mechanism is _____. body temperature Molecules formed when electrons are shared equally are _____ molecules. nonpolar The pH scale is based on the concentration of hydrogen ions in solution, ranging from 0-14 logarithmically. If gastric juice has a pH of 2, it would be considered _____. acidic Biological catalysts are ____. enzymes A protein that has unfolds and loses it 3-dimensional shape is said to be _____. denatured The correct sequence of levels forming the structural hierarchy is _____. chemical, cellular, tissue, organ, organ system, organismal The major function of carbohydrates in the body is to _____. provide, a ready, easily used source of fuel A neutral fat is composed of _____. glycerol and fatty acids A(n) _____ reaction occurs when atoms or molecules are combined to form a larger, more complex molecule.

synthesis _____ are different atomic forms of an element, varying in the numbers of neutrons they contain. isotopes Monosaccharides are joined to form a disaccharide, and water is lost as the bond is formed. This type of synthesis reaction is called _____. dehydration syntheis One of the functions of DNA is to _____. replicate itself before cell division Two examples of nucleic acids are _____. DNA and RNA The building blocks of proteins are _________________________. amino acids The two fundamental divisions of the body are the ___________________ part, which makes up the head, neck, and trunk of the body, and the _________________________ part, which consists of the limbs or appendages that are attached to the body's axis. axial, appendicular The concentration of a solution may be expressed as ___________________, or moles per liter (M) molarity Substances composed of two or more components that are physically mixed are __________. mixtures

A ___________________ is an inorganic compound which has a bitter taste, feels slippery, and is a proton acceptor. base Name the five (5) survival needs in order to maintain life.

1. oxygen
2. water
3. normal body temperature
4. normal atmospheric pressure
5. nutrients- carbs, proteins, fats, selected minerals, vitamins State the five (5) properties of water that contribute to it being an excellent solvent.
6. high heat capacity
7. high heat of vaporization
8. polar solvent
9. reactivity
10. cushioning