Bio 141 Study guides, Class notes & Summaries

All cells must have... - Answer--Nucleic acids that store and transmit info -Proteins that perform most of the cells functions -Carbs that provide chemical energy, carbon, support, identity -A plasma membrane which serves as a selectively permeable membrane barrier. Pro: Chromosome - Answer-Singular, circular chromosome that consists of large DNA molecules with a small number of proteins Pro: Nucleoid - Answer-location and structural organization of circular chromosome. Pro: Plasmids - An...

BIO 141 Final Exam with complete solution / Latest updated .

BIO 141 Final Exam 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

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...

Compare and contrast meiosis and mitosis. - Number of times DNA is replicated 1 Number of cell divisions 1 mitosis, 2 meiosis Number of daughter cells produced 2 mitosis, 4 meiosis "Ploidy" of daughter cells stays the same in mitosis, cut in half in meiosis Type of cells in which the process occurs somatic cells mitosis, germ cells meiosis Number and genetic make-up of chromosomes in parent cell compared to daughter cells What is the difference between diploid and haploid? - Diploid orga...

Bio 141 Unit 1 Exam with complete solution / Latest updated .

Bio 141 Unit 1 Exam with complete solution / Latest updated .

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 EXAM 1 STUDY QUESTIONS with complete solution / Latest updated .