Biology 1201 lsu - Study guides, Class notes & Summaries

Exam 4: BIO1201/ BIO 1201 (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: what makes a specific locus homozygous? Answer: if both homologous chromosomes carry the same allele at a given gene locus (also called true-breeding) Q: what makes a specific locus heterozygous? Answer: if 2 homologous chromosomes carry different alleles at a given gene locus (also called hybrid) Q: what is the punnett square method? Answer:...

Exam 2: BIO1201/ BIO 1201 Review (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: what is active transport? Answer: work must me done; must use supplied energy; employs carrier molecule Q: for which transport processes are carrier molecules involved? Answer: facilitated diffusion and active transport Q: which transport processes require the input of additional energy? Answer: active transport Q: what is a semi...

Exam 1: BIO1201/ BIO 1201 (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: T/F: A compound has characteristics different from those of its elements Answer: True Q: An element's properties depend on the structure of its ______. Answer: Atom Q: An ____________ is the smallest unit of matter that still retains the properties of an element. Answer: Atom Q: Atoms can be broken down into smaller particles like ____...

How many quarters of the planet is covered with water? - ANSWER Three-quaters What is the average depth of the ocean? For every ___ meters depth increase, pressure increases___ atm - ANSWER 3800 meters. 10; 1 The deep sea is characterized by: - ANSWER Defined as the ocean below either 200 or 1000 meters. Low temperature, high hydrostatic pressure, and no sunlight. 2-4 degrees celsius What doesn't penetrate to the deep sea for photosynthesis? - ANSWER Sunlight

organisms are composed of _______________ matter anything that takes up space and has mass matter a substance that cannot be broken down to other substances by chemical reactions example: hydrogen element a substance consisting of two or more elements in a fixed ratio example: water (H2O) compound the smallest unit of matter that still retains the properties of an element atom

Heredity the transmission of traits from one generation to the next Variation __________ is demonstated by the diffferences in appearance that offspring show from parents and siblings genetics ________ is the scientific study of heredity and variation genes __________ are the units of heredity and are made up of segments of DNA gametes genes are passed to the next generation via reproductive cellls called ________ (sperm and eggs) somatic cells humans have 46 chromosomes in the nucl...

how do animals cells communicate through direct contact? - ANSWER cell junctions connecting the cytoplasms or cell - cell recognition from molecules protruding from surface of cell attaching to one another describe paracrine signaling - ANSWER -The transmitting cell secretes the local regulator (chemical signal) into the fluid surrounding the cells of a tissue. -The local regulator diffuses across the liquid. -The local regulator binds to protein receptors at the cell surface of the target...

An element has 8 protons, 9 neutrons, and 8 electrons. What are its atomic number and mass? - Answer-8 and 17 How many and what type of bonds does sulfur usually form in biology? - Answer-2 covalent A molecule that has all non polar covalent bonds would be________. - Answer-hydrophobic What substance makes up the interior of a potato tuber? - Answer-starch What is an example of a lipid? - Answer-triglyceride One characteristic shared by sucrose, lactose, and maltose is that __________. - A...

organisms are composed of _______________ matter anything that takes up space and has mass matter a substance that cannot be broken down to other substances by chemical reactions example: hydrogen element a substance consisting of two or more elements in a fixed ratio example: water (H2O) compound the smallest unit of matter that still retains the properties of an element atom atoms are composed of subatomic particles. list the subatomic particles and their charges neutron (no charg...