BIO 202

1. _________ gametes are formed by _________ in a diploid organism. - correct answer Haploid, meiosis The earth formed 4.55 billion years ago, but living organisms did not emerge for another billion years (3.5 BYA). - correct answer True It is thought that the first macromolecule in protobionts was RNA because - correct answer RNA can replicate itself and synthesize proteins. The Miller and Urey experiment showed - correct answer How nucleotides and amino acids could be produc...

Endocrine system - correct answer glands, tissues, and cells that secrete hormones Endocrinology - correct answer the study of this system and the diagnosis and treatment of its disorders Endocrine glands - correct answer organs that are traditional sources of hormones Hormones - correct answer chemical messengers that are transported by the bloodstream and stimulate physiological responses in cells of another tissue or organ, often a considerable distance away What are the f...

increases the rate of a chemical reaction without becoming part of the product - correct answer catalyst provides a standard of comparison for test results - correct answer control biologic catalyst: protein in nature - correct answer enzyme substance on which a catalyst works - correct answer substrate organ that produces "salivary amylase" - correct answer salivary glands site of action "salivary amylase" - correct answer oral cavity Organ producing "trypsin" - c...

Chemical messengers secreted into the blood stream, act on cells far away - correct answer Hormones Released by nerves to affect cells - correct answer Neurotransmitters What are the functions of the Thyroid Hormone (TH)? - correct answer 1. Controls metabolic rate 2. Alertness 3. Bone growth 4. Growth of skin, hair, etc. 5. Controls fetal nervous system This hormone feeds back to the pituitary to secrete growth hormones. - correct answer Thyroid hormone (TH) This hormone...

Endocrine Glands - correct answer Ductless glands that empty their hormonal products directly into the blood exocrine glands - correct answer Glands that secrete substances outward through a duct Endocrine System - correct answer the body's "slow" chemical communication system; a set of glands that secrete hormones into the bloodstream Nervous System - correct answer the body's speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and...

Which of the following descriptions of a preganglionic neuron is NOT correct? - correct answer Forms gap junctions with postganglionic neurons in autonomic ganglia Which of the following types of neurons would normally have the shortest axon? - correct answer Preganglionic sympathetic neurons The two main neurotransmitters of the autonomic nervous system are: - correct answer Norepinephrine and acetylcholine Which of the following responses is caused by activation of the parasympa...

Physical characteristics of blood: - correct answer Transport, Regulation, Protection Transport functions includes: - correct answer Delivering O2 and nutrients to body cells Transporting metabolic wastes to lungs and kidneys for elimination Transporting hormones from endocrine organs to target organs Regulation functions include: - correct answer - Maintaining body temperature by absorbing and distributing heat - Maintaining normal pH using buffers; alkaline reserve of bicarbonat...

List the components of the cardio vascular system - correct answer Heart, blood vessels, blood Contrast the pulmonary and systemic circuits Describe the location, size, shape and position of the heart - correct answer Pulmonary circuit: right heart, lungs, left heart/ carries blood to lungs for gas exchange/ right side of heart Systemic circuit: left heart, body, right heart/ supplies blood to all organs of the body/ left side of the heart -Location: thoracic cavity (in the mediastinum...

If a patient had low levels of PH, would she have muscle weakness or tetany? - correct answer tetany Which hormone triggers the movement of glucose so its energy can be used or stored? - correct answer insulin Which hormone triggers the breakdown and use of stored body resources under times of stress? - correct answer cortisol Which hormones are produced by the hypothalamus and secreted by the posterior pituitary? - correct answer oxytocin and ADH The catecholamine hormones -...

what is the normal pH range of blood? - correct answer 7.35-7.45 which vein is a common location for venipuncture? - correct answer median cubital vein what are the 4 main functions of blood? - correct answer -transportation of metabolic wastes -transportation of oxygen -protection from disease -protection from a loss of blood what is plasma is mostly made up? - correct answer water in the process of recycling hemoglobin, what is the proper pathway in the recycling and con...