university of michigan

Ecology - Answer The interactions of an organism with other organisms and with its environment Mutualism - Answer An interaction between two species in which both species benefit Commensalism - Answer An interaction between two species in which one species benefit and the other is unaffected Predation/parasitism - Answer An interaction between species in which one species benefit and the other is harmed Neutralism - Answer An interaction between two species which inter...

What hormones are secreted from the anterior pituitary? - Answer Prolactin FSH TSH LH Gonadotropin ACTH Growth Hormone What hormones are secreted by the posterior pituitary? - Answer ADH Oxytocin What hormones does the adrenal cortex secrete (and in response to what)? - Answer Secreted in response to ACTH Aldosterone, Cortisol, Androgens/sex hormones What does ADH do? - Answer Causes increased resorption of water from the collecting duct (ADH --> more concentrated...

what are enzymes - Answer proteins catalyzing biological reactions are enzymes consumed in the reaction - Answer no what do enzymes do then - Answer make the reaction go faster give formula for enzyme reaction - Answer substrate <--> enzyme substrate complex <--> product + enzyme what do enzymes do to activation energy? - Answer they lower it to make a reaction proceed how do enzymes make reaction go faster? - Answer binding to substrate and stabilizi...

Scientific Method - Answer Observation, Question, Hypothesis, Prediction, Test, Analyze Data/Form Conclusion, Repeat or Publish Results Dilution - Answer Adding water to a solution in order to decrease the concentration Example: 1/3 Dilution - Answer 1 part substance + 2 parts water Serial Dilution - Answer Dilution of a substance several times by the same amount each time Example: 1/8 Serial Dilution - Answer Dilute 3 times by a factor of two Qualitative Data - Ans...

Enzyme - Answer A protein that catalyzes (speeds up) biological reactions Active site - Answer An area on an enzyme where the substrate binds during a reaction; The part of an enzyme where the chemical reaction occurs. Substrate - Answer The reactant of an enzyme-catalyzed reaction Product - Answer A substance produced in a chemical reaction Vmax - Answer The maximum rate of reaction, when virtually all enzyme active sites are filled km - Answer Substrate concent...

Define sustainability - Answer The ability to continue using resources indefinitely; living off the interest, not the capital Define "per capita ecological footprint" - Answer The area of land needed to provide the resources to support one person; impact on the environment per person Which of the following would be an example of a non-point source of pollution - Answer run-off from agricultural fields In the eco-centered world view, what would be a reason to protect a spe...

What is the major fitness cost of sexual reproduction compared to asexual reproduction for females? Describe at least 2 other costs of sexual reproduction. Describe 3 hypotheses for why almost all animal species have sexual reproduction as part of their life cycles despite this cost. - Answer For females, sexual reproduction requires much of their energy, resources, and ultimately decreases their fitness by 50%. It also often does not produce as man y viable offspring since fewer offsprin...

History of human population - Answer Very little growth for much of human history, • Big increase in growth beginning with the start of agriculture 10,000 years ago and especially over the last 150 years beginning with the Industrial Revolution Growth over the last 150 years has been nearly exponential how to find human population for particular countries? - Answer Population change (year) = (births + immigration) - (deaths + emigration) What is percentage growth rate? - Answer ...

Metabolism - Answer The entire set of chemical reactions that sustain life Oxidation - Answer The loss of electrons (more positive charge) Potential; covalent - Answer Organic molecules store ____________ energy in their ____________ bonds Cadherin is an example of - Answer a cell adhesion molecule second law of thermodynamics - Answer an increase in disorder in the universe over time Integrins - Answer proteins that form connections between the cytoskeleton and ...

cell division - Answer Process by which a cell divides into two new daughter cells cell cycle - Answer An ordered sequence of events (including interphase [non-dividing] and the m-phase [dividing]) that extends from the time a eukaryotic cell is first formed from a dividing parent cell until its own division into two cells. The lengths of each stage of the cell cycle can vary in different tissues or organisms interphase - Answer Cell grows, performs its normal functions, and prepa...