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Lesson 4.1: Multiple Choice Name: Class: BIO Date:7/17/20 Circle the letter of the correct choice. 1. Photosynthesis (a) uses the energy in sunlight to make food. (b) uses the glucose in sunlight to make food. (c) uses the energy in sunlight to make ATP. (d) breaks down glucose to form ATP. 2. Which of the following autotrophs is also a producer? (a) a maple trees (b) the blue-green bacteria known as cyanobacteria (c) Laurencia , a marine genus of Red Algae from Hawaii. (d) All of the above are producers. 3. In the food chain grass → grasshopper → snake → hawk, which organism(s) are the heterotrophs? (a) the grass (b) the grass and grasshopper (c) the hawk (d) the grasshopper, snake, and hawk 4. Which of the following statements is true about glucose and ATP? (1) Glucose is made during photosynthesis. (2) The energy in sunlight is temporarily stored in glucose before it is transferred to ATP. (3) ATP is the energy-carrying molecule that cells use for energy. (4) The processes that make ATP and glucose also recycle oxygen in Earth’s atmosphere. (a) statement 1 only (b) statements 2 and 3 only (c) statements 1, 2, and 3 only (d) All 4 statements are c o r r e c t . 5. Photosynthesis can be described as the process that (a) uses carbon dioxide and water, in the presence of sunlight, to produce food (glucose) and oxygen. (b) uses glucose and oxygen to produce energy for the cell (ATP), releasing carbon dioxide and water. (c) uses glucose and oxygen, in the presence of sunlight, to make ATP. (d) uses carbon dioxide and water, in the presence of sunlight, to produce ATP and oxygen. 6. Which statement best describes the relationship between a consumer and a producer? (a) A lion eating an antelope. (b) A caterpillar eating a leaf. (c) A snake eating a rat. (d) A ﬂower absorbing sunlight. 7. Which of the following statements is true? (a) The products of photosynthesis are the reactants of cellular respiration. (b) The products of cellular respiration are the reactants of photosynthesis. (c) Both statements are true. (d) Neither statement is true. 8. The correct chemical formula for photosynthesis (in the presence of sunlight) is (a) 6CO 2 + 6O 2 → C 6 H 12 O 6 + 6H 2 O. (b) 6CO 2 + 6H 2 O → C 6 H 12 O 6 + 6O 2 . (c) C 6 H 12 O 6 + 6O 2 → 6CO 2 + 6H 2 O (d)C 6 H 12 O 6 + 6CO 2 → 6O 2 + 6H 2

BIO | 155 | Human Biology | assessment | Lesson 4.1: Multiple Choice Na

More_Exam_4_Practice.pdf-More Exam 4 Practice 1. Which

1. An example of a muscle that contracts as a unit because of electrical coupling is (1 point) a. the gastrocnemius. b. the biceps. c. the tongue. d. cardiac muscle 2. During a contraction in the smooth muscle, the calcium ions in the sarcoplasmic reticulum bind to the protein called (1 point) a. troponin. b. tropomyosin. c. myosin. d. calmodulin. e. actinomyosin. 3. By weight training, skeletal muscles grow in size. Cells do not increase in number because they do not divide, but increase in size by a process called (1 point) a. hypertrophy. b. tetanus. c. oxygen debt. d summation. e. isometry. 4. The muscles that move the eye have a high proportion of fast-twitch fibers and reach maximum tension very fast. These fibers belong to the class of fibers. (1 point) a. type I b. type II c. type III d. type IV e. type V

BIO | 1014 | Pollination | assessment | 1. An example of a muscle that

PageOut® Assessment http://jaird.pageout.net/page.dyn/instructor/assessment/display_assessment?quiz_id=788233[11/8/2009 5:04:18 PM] Biology 8e - Raven - Chapter 57 Instructions Biology 8e - Raven - Chapter 57 This assessment is worth 70 points. 1. A good average value for the amount of organic matter that reaches the next trophic level is abo

BIO | 1510 | Basic Life Mechanisms | study guides | PageOut® Assessment http://jai

1. Which of the following is NOT an example of at least one of Cannon’s postulates regarding the mechanisms that maintain physiological homeostasis? *a. platelets aggregating in a lose plug in a wounded blood vessel cause the aggregation of more platelets b. a neuron that fires action potentials at an intermediate rate at rest, but decreases the firing rate when its stimulus changes c. parasympathetic versus sympathetic stimulation of the heart by neurons d. epinephrine constricts some blood vessels and dilates others e. neurons increase the heart rate in response to decreased blood pressure 2. The velocity of blood flow in the capillaries a. is faster than in the other vessels because the total cross sectional area of the capillaries is the highest of the vessels. b. is slower than in the other vessels because the diameter of each capillary is the smallest of the vessels. c. changes during exercise because the diameter of the capillaries is controlled by sympathetic activation of smooth muscles that increase capillary diameter three-fold during exercise. d. is faster than in the other vessels because the diameter of each capillary is the smallest of the vessels. *e. is slower than in the other vessels because the total cross sectional area of the capillaries is the highest of the vessels. 3. A direct effect of cortisol is to *a. inhibit the release of adrenocorticotropic hormone (ACTH). b. stimulate the storage of glucose as glycogen. c. stimulate the release of corticotropic releasing hormone (CRH). d. activate the immune system. e. inhibit anabolic metabolism. 4. When the pressure is highest in the left ventricle a. both the aortic and left AV valve are open. b. the second heart sound is heard. c. blood is flowing into the ventricle. d. the P wave is seen on the EKG. *e. the aortic valve is open, but the left AV valve is closed. 5. Your best friend examined the DNA of humans living at high altitudes and discovered a new allele for hemoglobin. She collected hemoglobin from individuals with the new high altitude allele and measured how its oxygen binding changes with the partial pressure of oxygen. She compares how this new hemoglobin binds oxygen to typical hemoglobin. She made measurements in low oxygen (from PO2 of 20 to 50 mm Hg) and in high oxygen (from PO2 of 70 to 100 mm Hg). Her hypothesis was that the new version of hemoglobin would have properties that would likely increase delivery of oxygen to tissues. It would support the hypothesis if, compared to the typical hemoglobin, the new type of hemoglobin bound oxygen ________ at the high PO2 and ____________ at low PO2. *a. the same, less b. the same, the same c. the same, more d. less, more 6. You observe that epinephrine causes blood vessels from the intestines to constrict and causes blood vessels from the skeletal muscle to dilate. You have the hypothesis that this difference in response is due to beta adrenergic receptors on skeletal muscle blood vessels and alpha adrenergic receptors on intestinal blood vessels. Which of the following experiments would best test this hypothesis? a. increase the intracellular calcium concentration in the smooth muscle of the blood vessels and measure diameter of both types of blood vessels *b. determine whether each type of blood vessel expresses alpha or beta adrenergic receptors using labeled antibodies to the receptors c. genetically replace the existing adrenergic receptors with alpha receptors and measure the diameter in both types of vessels d. depolarize the smooth muscles of the blood vessels and measure the diameter in both types of blood vessel 7. The following is not a normal situation, but you can solve for the answer using the Nernst equation, or other information that you know. The valance (z) of lithium is the same as the valance of sodium and potassium (+1). What is the equilibrium potential of the ion lithium when the lithium concentration inside a cell is 12 mM and its concentration outside the cell is 120 mM? a. -60 mV *b. +60 mV c. +120 mV d. -90 mV e. 0 mV 8. Assume an axon has not fired an action potential for a long time. If a region in the middle of the length of this axon is depolarized above the action potential threshold by opening voltage-gated sodium channels, a. Current causing a graded depolarization will spread only towards the cell body. *b. Action potentials will propagate in both directions from the depolarization.

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