Bio 141 - Study guides, Class notes & Summaries

BIO 141 EXAM 1 STUDY QUESTIONS with complete solution

organism - Answer-living entity made up of 1 or more cells what are the 5 fundamental characteristics of an organism; briefly describe each - Answer-1. energy: to stay alive and reproduce; usually acquired 2. cells: membrane bound units, make up organisms 3. information: hereditary or genetic information encoded in genes 4. replication: every organisms goal is to reproduce and replicate itself 5. evolution: organisms are products and continue to evolution theory - Answer-explanation for e...

PVCC BIO 141 Bones Lecture Exam Questions and Answers Hydroxyapatite - Answer-Hardy crystals consisting of calcium and phosphate that form the bone matrix. -Work with osteoid Osteocytes - Answer-mature bone cells (osteoblasts) in lacunae that no longer divide -Maintain bone matrix and act as stress or strain sensory -Respond to mechanical stimuli such as increased force on bone or weightlessness -Communicate information to osteoblasts and osteoclasts (cells that destroy bones) so bon...

BIO 141 Final Exam (2)

PVCC Bio 141 Exam 4 Questions with Answers White and gray rami communicants contain ______- system neurons only. - Answer-sympathetic Sympathetic fibers emerge from _______- and synapse in the superior cervical ganglion - Answer-T1 to T4 These fibers innervate _____ and _________ of the head; stimulate _______ muscles of the iris; inhibit ______ and _______ glands; innervate smooth muscle of the ___________ and branch to the _______ - Answer-skin, blood vessels, dilator, nasal, salivary,...

BIO 141 EXAM 1 STUDY QUESTIONS with complete solution / Latest updated .

study of the functions of the body parts - physiology increase in body size without change in shape - growth movement of substances from place to place in body fluids - circulation change in the position of the body or a body part; motion of an internal organ - movement study of the structure of body parts - anatomy breakdown of food into simpler substances - digestion obtaining oxygen, using oxygen in releasing energy from foods and removing carbon dioxide - respiration

What are the four most common elements? - Answer-Hydrogen, oxygen, carbon, nitrogen What is the difference between and atom and a molecule? - Answer-An atom is composed of subatomic particles and the smallest unit of an element A molecule is 2 or more atoms combing to form a distinctive particle What does it mean that water is polar? - Answer-There is an uneven distribution of electrical density Partial (-) charge near oxygen atom and (+) charge near hydrogen atom What are the bonds that a...

BIO 141 Final Exam

PVCC BIO 141 Integumentary System – Lecture Questions with Answers Squamous Cell Carcinoma - Answer--Second most common -Arises from keratinocytes from stratum spinosum -Metastasize (spread) -irregular pink ulcer w/ raised edge -Managed by surgical removal -Prognosis good - if treated early Malignant Melanoma - Answer--Will kill you -Sometimes hidden (most dangerous!) -Cancer of the melanocytes (ie moles) -Metastasize (spread) early on -Early detection is very important skin c...