BIOL 101 QUIZ 2

Question 1 ● 0 out of 3.2 points ● Some bacterium always lives in surroundings with the same concentration of dissolved substances as in their own cytoplasm. These bacteria will not needQuestion 2 ● 3.2 out of 3.2 points ● Which is not a function of a lipid?Question 3 ● 3.2 out of 3.2 points ● It is difficult for human macrophages to detect and destroy Strep cells because Strep cellsQuestion 4 ● 3.2 out of 3.2 points ● Bacteria are typically very small, yet even the largest bacterium is still a prokaryote because itQuestion 5 ● 0 out of 3.2 points ● The small intestine signals the _________ cell that food is present; the signal is a ______ that binds to _____________ on the cell.Question 6 ● 3.2 out of 3.2 points ● A eukaryotic cell structure (organelle) in which the final stages of protein maturation are completed:Question 7 ● 3.2 out of 3.2 points ● In a eukaryotic cell the reactions of _______ process energy into the form of ATP within a structure called the __________.Question 8 ● 3.2 out of 3.2 points ● It is impossible to write a brief dictionary definition of life becauseQuestion 9 ● 3.2 out of 3.2 points ● What stimulates the release of the enzyme amylase into the pancreatic duct so that it can break down starches?Question 10 ● 0 out of 3.2 points ● A eukaryotic cell structure (organelle) that results when a vesicle formed from the Golgi complex simply remains in the cytoplasm of the cell:Question 11 ● 3.2 out of 3.2 points ● Discrete, visible lengths of DNA sequence found in human cell nuclei are known asQuestion 12 ● 3.2 out of 3.2 points ● The bases in a DNA molecule include all of the following exceptQuestion 13 ● 3.2 out of 3.2 points ● A five-carbon sugar that is bonded to a nitrogen-containing base and to either one, two or three phosphate groups is known as a(n) _________ monomer.Question 14 ● 3.2 out of 3.2 points ● A fat molecule consists of: Selected Answer: three fatty acids covalently bonded to a glycero molecule.Question 15 ● 3.2 out of 3.2 points ● The structure of testosterone could best be described as Selected Answ er: four rings of carbon atoms bonded together with hydrogen atoms around the edges.Question 16 ● 3.2 out of 3.2 points ● Which of the following cells are prokaryotic? Selected Answer: bacterial cells.Question 17 ● 3.2 out of 3.2 points ● ________ and ________ are structures that walk along microtubules in the eukaryotic cell carrying vesicles from place to place. Selected Answer: Dyneins, kinesinsQuestion 18 ● 3.2 out of 3.2 points ● Which of the following is a class of monomers used as building blocks in the polymers of living organisms? Selected Answer: amino acidsQuestion 19 ● 0 out of 3.2 points ● ____ are little molecular machines (eukaryotic cell structures) that move vesicles and organelles throughout the cytoplasm of the cell. Selected Answer: Golgi sacsQuestion 20 ● 3.2 out of 3.2 points ● A large polymeric molecule that is nonpolar over most of its structure but very polar at one end: Selected Answer: phospholipidQuestion 21 ● 3.2 out of 3.2 points ● Which of these cell organelles has ribosomes in its membranes? (Ribosomes do protein synthesis.) Selected Answer: rough endoplasmic reticulumQuestion 22 ● 3.2 out of 3.2 points ● A single-stranded polymer whose monomers contain the sugar ribose and the nitrogenous base uracil: Selected Answer: RNAQuestion 23 ● 3.2 out of 3.2 points ● A sugar is a carbohydrate because a sugar moleculeQuestion 24 ● 3.2 out of 3.2 points ● Respiratory proteins, ion channels, transport proteins and attachment point proteins are all examples of protein foundQuestion 25 ● 3.2 out of 3.2 points ● When the enzyme amylase from the pancreas is finally ready for use, it is stored within cell cytoplasmic vesicles called__