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Study Resources (Chemistry)

  31) A polysaccharide that is made by plants and can usually be digested by humans is ________.31) 32) A molecule with hydrophobic properties and polar molecular attributes would be called a(n) ________.              32) 33) A protein that speeds up chemical reactions without being consumed in the process is called a(n) ________.              33) 34).
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  11) The interaction between two polar molecules would involve ________. A) covalent bondsB) ionic bonds C) hydrogen bondsD) peptide bonds11) 12) A substance consists of weak acids or bases designed to maintain a specific pH of a solution within a cell or a biological system. Which of the following describes this substance? A).
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  31)Muscle contraction results from the repeated cycle of interactions between myosin and actin.              31) What is the last step of this cycle, after which the cycle starts over again? A) The myosin head bends (the power stroke). B)Myosin heads extend toward the Z lines at the ends of the sarcomere. C)The myosin.
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  65)A patient with leukemia has blood cells that are not dividing properly and are out of control. Treatment consists of a bone marrow transplant. How would this help? 66)Organized sports can be very competitive, even for young children. Little League players are often pushed to develop such skills as perfecting a.
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  20) A person using a very effective sunscreen would be less likely to make which vitamin within his or her body? A) vitamin CB) vitamin DC) vitamin AD) vitamin B20) 21) The sebaceous glands associated with hair follicles produce ________. A) androgensB) keratinC) sweatD) sebum21) 22) Nutrients reach cells in the epidermis by ________. A)moving.
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  1) Which of the following is found in both eukaryotic and prokaryotic cells? A) endoplasmic reticulumB) nucleus C) ribosomesD) mitochondria1) 2) If natural selection would select against organisms with a nucleus, which one of the following organisms would survive and evolve? A) archaeaB) fungiC) protistsD) plants2) 3) You find a strange infection in your mouth.
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  58)Explain the relationship between nucleic acids and proteins. How would a change to the DNA ultimately affect proteins? 59)Radioactive iodine (131I) is commonly used in medical situations for diagnosing and treating thyroid conditions. The most common isotope of iodine that is not radioactive is 127I. Chemically, what is the difference between.
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  37) Proteins are processed and packaged in the organelle known as the ________.37) 38) The organelle known as the ________ makes phospholipids.38) 39) Cellular structures that function in movement and consist of numerous short hairlike extensions from the cell are called ________.              39) 40) ________ is a metabolic process that creates ATP for.
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  21) The main weight- bearing bone in the lower extremities is known as the ________. A) pelvisB) femurC) fibulaD) tibia21) 22) The bones that make up the digits of the hands or feet are known as the ________. A) tarsalsB) phalangesC) metatarsalsD) carpals22) 23) Carpal tunnel syndrome is caused by an inflammation of tendons.
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  26) A ________ is a group of cells of similar type that work together to serve a common function.              27) Of the four main tissue types, ________ covers body surfaces and lines body cavities and organs.              28) ________ glands secrete products onto body surfaces or into body cavities or organs.
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  11)Your doctor recommends that you undergo a major surgery. You should ________.11) A)immediately make an appointment for the surgery B) seek a second opinion from another doctor C) ignore his or her recommendation D) visit the ER 12)Your health care agent cannot ________.12) A)be an employee of the health care provider unless he or.
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  1) Which of the following is not a function of muscle? A) move blood in veinsB) destabilize joints C) generate heatD) move lymph in lymphatic vessels1) 2) Overuse, misuse, and age are some of the factors that contribute to excessive stress on a tendon, causing inflammation known as ________. A) spasmsB) tendinitisC) tetanusD) bursitis2) 3).
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  11) Which hormone causes calcium to be released from bone into the bloodstream? A) estrogenB) calcitonin C) parathyroid hormone (PTH)D) Boniva11) 12) Membranous areas in the infant skull that join bones and function to allow for rapid growth of the brain are known as ________. A) fibrous membraneB) lacunae C) fontanelsD) osteocytes12) 13) Which of.
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  55)If a new anesthetic were developed that entered the nerve cells efficiently, why would it be important for the substance to be lipophilic (to dissolve in lipids)? 56)We know that from their mother's milk, infants gain proteins called antibodies that protect them from specific germs. We also know that proteins will.
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  31) The ________ is the site in long bones that stores fatty tissue used for energy.31) 32) Osteoblasts deposit ________ on the secreted collagen during the transformation from cartilage to a mature bone.              32) 33) The hormone ________ removes calcium from the blood and causes it to be stored in the bone.             .
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  39) Partially hydrogenated fats are also referred to as ________ fats.39) 40) A substance that, when dissociated in water, will give off hydrogen ions is referred to as a(n) ________.              40) 41) Atoms that have the same number of protons but differ in the number of neutrons are called ________.              41) 42) The.
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  11) Calcium ions are normally in higher concentrations outside most living cells than within cells. Which of the following processes is most likely responsible for this condition? A) osmosisB) active transport C) facilitated diffusionD) simple diffusion11) 12) If a liver cell were to be placed in a beaker with a solution containing the.
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  1) These skin cells fight infections: ________. A) melanocytesB) macrophagesC) fibroblastsD) neuroglia1) 2) A group of organs in the body that have a common function make up a(n) ________. A) organismB) brainC) tissueD) organ system2) 3) Specialized cells found at the base of the epidermis that produce pigments that help give skin its color.
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  Match each definition in the first column to the correct term in the second column. 43)Is produced along with water at the end of normal cellular respiration. 44)The process of splitting glucose into two molecules of pyruvate without the use of oxygen. 45)They serve as the working parts of cilia and flagella. 46)A metabolic.
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  Match each definition in the first column to the correct term in the second column. 46)Weak bonds that function to stabilize proteins and nucleic acids such as DNA. 47)A substance made up of two or more elements whose properties are usually different from those of either of the two original substances. 48)The site where a.
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  21) Triglycerides ________. A) can provide twice the energy per gram than proteins B) are fatty acids bonded to glycerol through hydrolysis C)have solid unsaturated forms at room temperature, such as butter D)All of the above are true.21) 22) These lipids have hydrophobic part and a hydrophilic part. A) carotenoidsB) triglyceridesC) steroidsD) phospholipids22) 23) The hydrogen,.
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  58)People who are very underweight often complain of being cold. However, individuals who are overweight are less likely to complain of being cold. Explain why this might be the case. 59)Carlos visited the desert for the first time and, as he was sweating a lot, bought some distilled water. This seemed.
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  35) A tendon or ligament is made up principally of ________ tissue.35) 36) ________ glands secrete fluids that consist of water, salts, and metabolic wastes, but they mainly function to regulate body temperature.              36) 37) ________ muscle tissue is involuntary and has branching cells with striations.37) 38) These muscles would contract when a.
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  30) ________ are microscopic prokaryotes inhabiting, among other hostile places, hot springs and very salty waters.              30) 31) The three types of microscopes used to look at cells and parts of cells are the transmission electron microscope, scanning electron microscope, and ________.              31) 32) Glycoproteins on the surface of the plasma membrane.
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  67)Rheumatoid arthritis is the most threatening form of arthritis and often results in a replacement prosthesis of the damaged joint. Explain how this form of arthritis differs from other forms. 68)You fall during roller- skating and notice a hematoma on your tibia, suggesting that you damaged the bone. Describe step by.
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  11) These epithelial cells function in secretion or absorption and are found in many glands and in the kidney tubules: ________. A) cuboidalB) squamousC) stratifiedD) columnar11) 12) Which of the following contains the most cells? A) tissueB) an organism C) an organD) an organ system12) 13) Which layer lacks blood vessels? A) dermisB) subcutaneousC) epidermisD).
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  Match each definition in the first column to the correct term in the second column. 41)The organ system that is responsible for the physical and chemical breakdown of food and for the absorption, processing, and the release of digestive products. 42)A muscle type that provides voluntary movement and is composed of long,.
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  1) Which of the following cells form new bone in bone tissue? A) osteoblastsB) osteonsC) fibroblastsD) osteocytes1) 2) In the spongy bone, which of the following produces blood cells? A) red marrowB) yellow marrow C) osteocytesD) osteons2) 3) Which of the following covers compact bone and functions in bone repair and growth? A) endosteumB) diaphysisC) epiphysisD).
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  41) The ________ joints have no joint cavity and usually do not permit movement. Sutures between skull bones are this kind of joint.              41) 42) The pectoral girdle is composed of the ________, or shoulder blades, and the collarbones.42) 43) The ________ girdle connects the legs to the vertebral column.43) 44) A(n) ________.
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