BIO 100 Unit 5 Test _ 2020 – Troy University | BIO100 Unit 5 Test _ 2020

1 BIO 100 Unit 5 Test _ 2020 – Troy University Various conditions are associated with aging. Which condition is characterized by decreased mental functions and loss of memory? • Senescence • Alzheimer's disease ...

1 BIO 100 Unit 5 Test _ 2020 – Troy University Various conditions are associated with aging. Which condition is characterized by decreased mental functions and loss of memory? • Senescence • Alzheimer's disease • Menopause • Andropause CONCEPT Effects of Aging on Your Body 2 Which of the following is an agent of chemical digestion in the mouth? • Teeth • Salivary amylase • Bolus •Chyme CONCEPT Chewing and Swallowing 3 Which of the following is associated directly with the endocrine system? • Lymph nodes • Phagocytes • Skeletal muscle • Hormones CONCEPT Endocrine System 4 An individual's blood volume and blood pressure decrease. Which of the following will be the body's response to maintain homeostasis and increase the blood volume and blood pressure? • ADH is released, less water is reabsorbed, the urine becomes more diluted • ADH is released, less water is reabsorbed, the urine becomes more concentrated • ADH is released, the kidneys conserve water, the urine becomes more diluted • ADH is released, the kidneys conserve water, urine becomes concentrated CONCEPT Fluid Balance and Blood Pressure5 Select the correct route of sperm once they are produced. • Penis → Testes → Urethra → Epididymis → Ejaculatory duct → Vas deferens • Testes → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Penis • Penis → Urethra → Ejaculatory duct → Vas deferens → Epididymis →Testes • Testes → Penis → Epididymis → Urethra → Vas deferens → Ejaculatory duct CONCEPT Male Reproductive System 6 Which organ of the endocrine system is part of the brain? • Pancreas • Pineal gland • Parathyroid gland • Adrenal gland CONCEPT Organs of the Endocrine System 7 Which of the following is most likely the cause of Graves' disease? • Lower than normal levels of parathyroid hormone in the blood •Higher than normal levels of thyroid hormones in the blood • Lower than normal levels of thyroid hormones in the blood • Higher than normal levels of parathyroid hormone in the blood CONCEPT Thyroid and Parathyroid 8 Which of the following statements about brush cells is true? • They are composed of villi, which are themselves composed of microvilli. • They are found on the microvilli and have villi on them. • They are found on the villi and have microvilli on them. • They are a part of the lumen that removes harmful substances. CONCEPT Small Intestine 9 After fertilization, the newly formed zygote begins to divide into multiple cells through a process called __________. • Cleavage • Blastomere • Morphogenesis •Gastrulation CONCEPT Fertilization and Early Development 10 In which step of urine formation is the glomerulus involved? • Secretion • Filtration • All three • Reabsorption CONCEPT Urine Formation 11 Which of the following statements about secondary messengers is true? • They are a third type of hormone, although they differ significantly from the other two. • They carry out the effects of steroid hormones within the cell. • They work with both steroid and non-steroid hormones to carry out their effects in the cell. • They carry out the effects of non-steroid hormones within the cell. CONCEPT Steroid and Non-Steroid Hormones 12Which of these is a glucocorticoid secreted by the adrenal cortex? • Norepinephrine • Aldosterone • Epinephrine • Cortisol CONCEPT Adrenal Glands 13 Which hormone, released during the menstrual cycle, prepares the endometrium for implantation? • Growth hormone • Thyroid stimulating hormone • Estrogen • Prolactin CONCEPT Ovarian Cycle and Menstrual Cycle 14 A woman in labor is giving birth to a baby feet first, or in breech. What should the doctor do? • Cut the umbilical cord.• Turn the baby around. • Push the baby back into the uterus. • Pull the baby out of the mother's body. CONCEPT Labor and Birth 15 Which organ stores bile? • Gallbladder • All three • Pancreas • Liver CONCEPT Pancreas, Gallbladder, & Liver 16 Where does digestion begin? • The stomach • The large intestine • The mouth •The small intestine CONCEPT Digestion 17 Which part of the kidney does the actual filtering of the blood? • Nephrons • Renal cortex • Renal pelvis • Renal medulla CONCEPT Kidneys 18 Which of these describes the endometrium? • The tube connecting the ovary to the uterus • The site of oogenesis • The external orifice of the uterus • The inner lining of the uterus CONCEPT Female Reproductive System 19 What happens when blood is too acidic?• Nothing, blood is supposed to be acidic. • More bicarbonate is released into the bloodstream. • More hydrogen ions are released. • Less bicarbonate is released into the bloodstream. CONCEPT Blood pH 20 Which part of the large intestine helps fight parasites that have survived the previous digestive tract? • Appendix • All parts of the large intestine • Rectum • Colon CONCEPT Large Intestine 21 Which type of pancreatic cells help to raise blood sugar? • Alpha cells • Gamma cells• Delta cells • Beta cells CONCEPT Pancreatic Hormones 22 A woman has had a miscarriage; what happened to her fetus? • It was implanted too firmly in the uterus. • It was underdeveloped. • It was spontaneously expelled from the uterus. • It was overdeveloped. CONCEPT Embryonic and Fetal Development 23 Which layer of the digestive tract contains blood vessels and nerve cells? • Submucosa • Mucosa • Lumen • Serosa CONCEPTThe Alimentary Canal 24 Which type of digestion occurs in the stomach? • Mechanical • Chemical • Both mechanical and chemical • Neither mechanical nor chemical CONCEPT Stomach 25 Which of the following structures connects a developing child to the placenta? • Umbilical cord • Chorion • Amnion • Yolk sac CONCEPT Placenta 26 Which type of cells are responsible for the growth of facial hair and the deepening of the voice in males during puberty?• Leydig cells • Sertoli cells • Stem cells • Schwann cells CONCEPT Sperm Formation