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BIO 210 FINAL EXAM 2025\QUESTIONS AND
ANSWERS| A+ GRADED
Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially _________ charged atom of another. polar covalent; negatively Surfactant is necessary to prevent collapse of the alveoli in the lung because in its absence water molecules are more strongly attracted to each other by cohesive forces. Given that the mass of an oxygen atom is 16 amu and that of a hydrogen atom is 1 amu, 1 mole of water would be equal to 18 grams An emulsion is classified as a specific type of colloid
For every atom of carbon in a carbohydrate there are approximately two atoms of hydrogen. Which of the following choices lists the order of stages of cellular respiration in proper order? Glycolysis, intermediate stage, citric acid cycle, and the electron transport system Pyruvate dehydrogenase is located in the matrix of the mitochondrion. Phosphorylation is carried out by a kinase, and it may activate some enzymes and inhibit others. Enzyme regulation by negative feedback involves
The coenzymes that will provide the electrons needed for the electron transport system are NADH and FADH2. A fever of 101°F causes most enzymes in the human body to be more flexible and efficient. The sodium level inside and outside of a resting cell is an example of the potential energy of a concentration gradient, because sodium is more abundant outside the cell. The optimal pH range for most human enzymes is 6-
The term "metabolism" refers to all chemical reactions in the body When the body's digestive system breaks down starch, a complex carbohydrate, into simpler carbohydrates, the reaction is catabolic and exergonic ATP formation is is endergonic and requires the presence of fuel molecules such as glucose. in an anatomical position with what view can you best view the mediastinum frontal scientist who describe layers of the heart anatomist
thumb hallux big toe organization of structure organs are made up of tissues, which are made up of cells, which are made up of organelles and molecules gross anatomy study of structure visible to the unaided eye limbs of body attach to appendicular control center of the homeostasis mech internal sensory input
anatomy greek "to cut apart" phospholipids are described as amphipathic the first amino acid put in place w protein methionine fatty acids consist mainly of carbon and hydrogen nonpolar and don't dissolve how many osmoles are in a 1M NaOH 2 osm
polar R groups of closely positioned amino acids enter into hydrogen bonds When a cell is placed in a solution with a very low solute concentration, water diffuses into the cell. Such a solution is called a(n) _________ solution. hypotonic The phase of mitosis that begins as spindle fibers pull sister chromatids apart at the centromere is anaphase Osmosis is the diffusion of water across a membrane In humans, the only cell that bears a flagellum is the ________ cell. sperm
The E site of a ribosome is where tRNA exits the ribosome Which is not considered part of the cytoplasm? nucleus Which is not a membrane-bound organelle? All of the choices are membrane-bound organelles. Which of the following serves to increase the surface area of a cell? microvilli The shape of skeletal muscle cells is described as cylindrical
Which statement is accurate? A sequence of nucleotides in DNA constitutes a gene; DNA and associated proteins form chromatin.
