Biology 1710 UNT Exam 1 Review Questions & Answers 2023/2024
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Biology 1710 UNT
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Biology 1710 UNT
Biology 1710 UNT Exam 1 Review Questions & Answers 2023/2024
What is found is DNA? - ANSWER-Adenine, Cytosine, Guanine, Thymine
What does a catalyst do? - ANSWER-Speeds up a chemical reaction, but is not consumed by the reaction.
What is a ribosome? - ANSWER-A particle consisting of RNA ...
Biology 1710 UNT Exam 1 Review Questions & Answers 2023/2024
What is found is DNA? - ANSWER-Adenine, Cytosine, Guanine, Thymine
What does a catalyst do? - ANSWER-Speeds up a chemical reaction, but is not consumed by the reaction.
What is a ribosome? - ANSWER-A particle consisting of RNA found in the cytoplasm of the cell. Ribosomes bind the RNA to synthasize polypeptides and proteins.
What are Chaperones/Chaperonins? - ANSWER-Proteins that assist to correctly fold other proteins.
What is a Disaccharide? - ANSWER-A carbohydrate (sugar) formed when two sugars are joined together and a molecule of water is removed.
What are some examples of Disaccharides? - ANSWER-Lactose- made from glucose and galactose. Sucrose (cane sugar)- made from glucose and fructose.
MALTOSE- made from two glucose molecules.
What makes two molecules enantiomers? - ANSWER-They must have the same molecular formula and an asymmetric carbon.
What are Emergent Properties? - ANSWER-Novel properties or capabilities that appear as one "moves up" on each level of the biological hierarchy and that were not observed at the preceding level.
What is an example of PHAGOCYTOSIS? - ANSWER-A unicellular protozoan sends pseudopodia to surround/engulf a bacteria cell. What is a "freeze-fracture and TEM" technique used for? - ANSWER-To get a look at the surface of a biological membrane, such as the plasma membrane, or a nuclear envelope-- to provide 3D information about the structures observed.
Is a steroid considered hydrophobic? - ANSWER-TRUE!
Proteins of the Keratin family are often used as sub-units to make fibers of: - ANSWER-Intermediate Filaments
Batesian mimicry was... - ANSWER-a famous experiment cautilized both brown and colorfully banded artificial snakes, placed in habitats that were either in or not in the natural range of the eastern coral snake to demonstrate the phenomenon of the batesian mimicry.
The brown snakes in the experiment of the batesian mimicry were the... - ANSWER-control group.
What is measures in daltons? - ANSWER-The mass of both atoms and subatomic particles.
The heat of vaporization is the basis for the property or process we know as: - ANSWER-Evaporateive cooling
What is an example of PHAGOCYTOSIS? - ANSWER-
Lysosome - ANSWER-An organelle found in eukaryotic cells that is characterized as being full of hydrolytic enzymes.
Negative feedback - ANSWER-A very common form of regulation used by living systems, especially common for biosynthetic pathways making molecules such as amino acids.
Biological polymers are most commonly broken down into monomer subunits by: - ANSWER-hydrolysis
A substance that counteracts the effects of an acid is called a... - ANSWER-buffer
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