Show Terms in this set (89)22) Which answer choice lists the steps of the scientific method in the correct order? Sets with similar termsUpgrade to remove ads Only A$47.99/year
Terms in this set (30)The molecule that provides immediate energy for cellular processes is adenosine triphosphate. Select the correct statement: DNA contains the genetic code, and RNA carries the coded information to the sites of protein synthesis. DNA and RNA are single-stranded molecules with dissimilar nucleotides. DNA and RNA are double-stranded molecules composed of nucleotides. DNA contains the genetic code, and RNA carries the coded information to the sites of protein synthesis. A nucleotide that RNA uses but DNA does not is ________.
uracil Enzymes directly act to speed up chemical reactions In ________, the sequence of bases in DNA determines the sequence of bases in mRNA, and the process occurs in the ________. transcription; nucleus Cellular respiration requires ________ to break down organic nutrients to release energy, which is captured in high energy ________ bonds. oxygen; phosphate How many nucleotides are needed to form a codon? 3 The difference between DNA and RNA is that there are differences in sugars, bases, and the number of strands.
After being produced, ________ provides the blueprint for assembling proteins. mRNA The form of carbohydrate our bodies use to store reserve energy is ________. glycogen ________ hormones bind to a receptor on the ________, which releases an enzyme that converts ATP into cAMP. Nonsteroid; plasma membrane The secretion of adrenocorticotropic hormone is controlled by a releasing hormone from hypothalamus. The hypothalamus regulates hormones from the anterior lobe of the pituitary gland using ________, while it regulates the posterior lobe of the pituitary gland using ________. hormones; nerve impulses The secretion of follicular-stimulating is controlled by a releasing hormone from hypothalamus. The secretion of prolactin is controlled by a releasing hormone and an inhibiting hormone from hypothalamus. ________ hormones bind with an intracellular receptor to form a ________, which activates specific genes. Steroid and thyroid; receptor-hormone complex The secretion of thyroid-stimulating hormone is controlled by a releasing hormone from hypothalamus. ________ is secreted by beta cells of pancreas, its secretion is stimulated by ________ in blood glucose level. Insulin; an increase ________ stimulates the testes to produce testosterone. Luteinizing hormone Nonsteroid hormones ________ pass across the plasma membrane; they cause the target cells to ________ that produce the characteristic effects of the hormones. cannot; activate or inactivate the cellular enzymes
The pulmonary circuit carries ________ blood from the ________ to the lungs and returns ________ blood to the ________. deoxygenated; right ventricle; oxygenated; left atrium The first heart sound (lub) results from the closing of the ________ valves in the beginning of ________. AV; ventricular systole The pulmonary veins carry ________ blood to the ________. oxygenated; left atrium The ventricles receive the impulses from the ventricular fibers. When ________, blood is forced into the ventricles. the atria contract and the ventricles relax When ________, blood flows passively into the atria and then passively into the ventricles. both the atria and the ventricles relax Which of the following is the correct pathway of the electrical impulses of the heart conduction system? SA node → AV node → AV bundle → AV branch → Ventricular fibers The T wave of an ECG is produced by the repolarization of the ventricles. The QRS complex of an ECG is produced by the depolarization of the ventricles. When the right ventricle contracts, the right atrium always relaxes simultaneously. Sets with similar termsLS 23L Practice Final109 terms ly_tru Final cont.70 terms Terri_Crump7 NHM 362 exam 598 terms shmdance Biology525 terms Erika_Cabrera10PLUS Sets found in the same folderChapter 16: Lymphatic System and Immunity123 terms lizziepratesi Hole's Antaomoy and Physiology: Chapter 10: Nervou…109 terms Tammywhite804 CH-21 Water, Electrolyte and Acid-Base Balance61 terms write2kc Holes Anatomy and Physiology: Chapter 14 Blood: Bi…120 terms Tammywhite804 Other sets by this creatorFundamentals Final Exam171 terms slv23 Fundamentals Test #255 terms slv23 Chapter 1, 3, 4, 6 Med Terms34 terms slv23 Chapter 41/45 TEST20 terms slv23 Verified questions
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Which of the following is true regarding differences between DNA and RNA?Answer and Explanation: The statement (b) RNA has the base uracil in place of the thymine in DNA is TRUE.
Which of the following characteristics do DNA and RNA have in common?One of the most significant similarities between DNA and RNA is that they both have a phosphate backbone to which the bases attach. Because of the phosphate group, this backbone is negatively charged—a quality many genetic techniques appreciate and exploit.
What is true of DNA but not RNA?Explanation: RNA contains uracil, while DNA contains thymine. All of the other statements are true. Note that DNA is usually double-stranded and RNA is usually single-stranded, but both can exist in the opposite configuration under certain conditions.
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Which statement about DNA and RNA is correct Quizlet
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