APHY 101 Ivy Tech Exam 1 Midterm Questions WITH COMPLETE 100% VERIFIED SOLUTIONS 2024/2025, Exams of Biology

Download APHY 101 Ivy Tech Exam 1 Midterm Questions WITH COMPLETE 100% VERIFIED SOLUTIONS 2024/2025 and more Exams Biology in PDF only on Docsity! APHY 101 Ivy Tech Exam 1 Midterm Questions WITH COMPLETE 100% VERIFIED SOLUTIONS 2024/2025 Signs of aging at the cellular level are: impaired cell division and the ability to break down and recycle worn cell parts. The elbow is distal to the wrist. False The ears are lateral to the eyes. True Which of the following lists best illustrates the idea of increasing levels of complexity? Organelles, cells, tissues, organs, organ systems A decomposition reaction can be symbolized by AB → A + B. A parietal layer of a serous membrane _______, whereas a visceral layer of a serous membrane ________. lines cavities; covers organs The three major parts of a cell are the nucleus, cytoplasm, and cell membrane. Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does not. False In negative feedback mechanisms changes away from the normal state stimulate changes in the opposite direction. Chemistry is important to the study of physiology because all of the above. Consider the following list of commonly found items and their pH values: Which of the choices includes all acids? Vinegar, grapes, tomatoes, and coffee In phagocytosis a cell membrane engulfs solid particles. Which of the following transport processes does not require expenditure of cellular energy? Facilitated diffusion An organic compound always contains carbon and hydrogen. Saturated fats _______ than unsaturated fats. have more single carbon-carbon bonds The atoms of the isotopes of a particular element vary in the number of Neutrons Lipids All of the above An electrolyte ionizes in water. True Which of the following groups of compounds is hydrophobic? Carbohydrates Which of the following substances is an element? Iron Which of the following groups of elements account for more than 95% of the human body by weight? Carbon, hydrogen, oxygen, nitrogen The anatomical term that indicates a structure close to the surface is superficial . The difference in hydrogen ion concentration between solutions with pH 4 and pH 5 is tenfold The symbol Na+ represents a sodium atom that has lost an electron. True A water solution that contains equal numbers of hydrogen ions and hydroxide ions is Neutral What characteristic do simple diffusion and facilitated diffusion share? Both move a substance from a region of higher concentration to one of lower concentration without cellular energy. If the concentration of glucose in the water outside of a cell is higher than the concentration inside, water will leave the cell by osmosis. Homeostasis is the tendency of the body to maintain a stable internal environment. Nucleic acids are composed of building blocks called nucleotides. Metabolism is defined as _____. all the chemical reactions occurring in an organism that support life The secondary structure of a protein molecule is the result of hydrogen bonds. The type of intercellular junction that forms tubular channels is a gap junction. Functions of neuroglia include which of the following? They support and bind nervous tissue and provide nutrients and growth factors to neurons by connecting them to blood vessels. The type of intercellular junction that consists of fused membranes is a(an) tight junction. A (An) ______ gland does not branch before reaching the glandular cells or secretory part. simple Tissues are groups of cells that have a common overall function, yet are distinctive in their characteristic cell types and the molecules that the cells produce. True Areolar tissue contains collagenous fibers, elastic fibers, and gel-like ground substance. Bone cells form concentric circles around longitudinal tubes called Central canals Involuntary muscle tissues are smooth muscle tissue and cardiac muscle tissue. Blood is composed of red blood cells, white blood cells, and platelets suspended in a fluid extracellular matrix called plasma. True Skin wrinkles with age because fat is lost from the subcutaneous layer and the dermis shrinks. Milk and ear wax are secreted from modified sweat glands. Skin cancer is most likely to develop from nonpigmented epithelial cells. Cutaneous carcinomas are usually caused by regular exposure to ultraviolet light. Nerve fibers scattered throughout the dermis are associated with muscles, glands, and sensory receptors. A burn affecting only the epidermis is a superficial partial-thickness burn. Three physiological factors that affect the color of skin are: volume of blood in dermal vessels, carotene in the subcutaneous layer, and various diseases. True A nail consists of a nail bed and nail plate. Which of the following is a normal response to excessive loss of body heat in a cold environment? Dermal blood vessels constrict. Skin cells play an important role in producing vitamin D. The arrector pili muscle is attached to a hair follicle. Reddened skin reflects dilated blood vessels with more blood entering the dermis. As epidermal cells move up through the strata away from their blood supply, they die and become keratinized. True Eccrine sweat glands differ from sebaceous glands All of the above What determines the color of skin? The amount of melanin that melanocytes produce. As a person ages, the skin typically becomes spotted with patches of pigment. The functions of skin include all of the above. Which person is at highest risk of developing a cutaneous carcinoma? a light-complexioned man age 52 who goes to the beach on summer weekends and does not use sunblock because he likes to be tan. Melanin production is greater in the skin of people who live outdoors all the time than in people who do not. True Inflammation makes skin red, swollen and painful to touch. Two thieves steal jewelry, and then drop it as they are escaping. The police recover the jewelry, and an officer explains on the evening news that fingerprints were obtained from the back of a watch. The thieves, whose prints are not on file, believe that they can escape prosecution by using acid to remove the epidermis on their fingerpads, so as not to be a match for the fingerprints on the watch. They are wrong because the prints arise from friction ridges of the dermis, which are not destroyed. Sebaceous glands secrete fat globules that mix with cellular debris, forming sebum. The layer of the epidermis that includes melanocytes and a single row of columnar cells that undergo mitosis is the stratum basale. Shafts of hair are composed of dead epidermal cells. Which of the following happens first after a scab forms? fibroblasts from the wound edge form new collagenous fibers. In all organisms, the basic unit of structure and function is the cell The thoracic cavity lies _____________ the abdominopelvic cavity. superior to Signs of aging at the cellular level are impaired cell division and the ability to break down and recycle worn cell parts. The diaphragm separates the thoracic and the abdominopelvic cavities. True Which action is the main function of the digestive system? Absorption of nutrients The oral, nasal, orbital, and middle ear cavities are in the dorsal cavity. False The digestive system filters wastes from the blood. False The elbow is distal to the wrist. False Which of the following characteristics of life and their descriptions are correct? Circulation-the movement of substances in body fluids The ears are lateral to the eyes. True In negative feedback mechanisms changes away from the normal state stimulate changes in the opposite direction. Homeostasis is the tendency of the body to maintain a stable internal environment. An anatomical section that separates the body into right and left portions is a __________ section. sagittal Which of the following lists best illustrates the idea of increasing levels of complexity? Organelles, cells, tissues, organs, organ systems Which of the following is not true of organelles? They are only in cells of humans.