Biology 211 Exam Questions and Answers

Feedback mechanisms Answer> Negative feedback=Stimulus invoking a response and the response inhibiting stimulus. Positive feedback=the stimulus invoking a response and the response providing a stimulus. IE. platelets increase, cells dividing. Kingdoms Answer> Bacteria, Archaea bacteria,...

Characteristics of Life Answer> Living things: -are organized -need energy and materials -maintain homeostasis -respond to stimuli (changes in environment) -reproduce and grow -have adaptations matter Answer> Anything that has mass and takes up space element Answer> A substance t...

Scientific theories are just "ideas" (T/F) Answer> false What is NOT considered a quality within the definition of life? Living things evolve Living things can grow and develop Living things are sentient Living things use energy Answer> Living things are sentient In some cases an ...

A Bacteria cell gives rise to 2 genectically identical daughter cells by what process Answer> Binary Fission All zygotes are Answer> diploid Products of mitosis are Answer> 2 genetically identical nuclei Replication of DNA occurs during what phase of the cell cycle Answer> S pha...

What is the difference between a hypothesis and a theory? Answer> Hypothesis: Testable prediction Theory: Explanation for a natural phenomenon What makes a well-accepted scientific theory? Answer> Supported by evidence Incorporates relevant laws What are the 5 fundamental characteristics...

What are the 5 fundamental traits of life? With these traits in mind, are viruses alive? What evidence supports your conclusion? Answer> -Energy Use and Metabolism -Cell Theory -Information, Genetics -Replication or reproduction -Biological Evolution -No, viruses are not alive because the...

What are the key characteristics of plants? Answer> - Composed of one or more eukaryote cell(s) - Cell wall composed of cellulose - Chlorophyll in chloroplast How do plants acquire energy? Answer> By autotrophy (photosynthesis) How do plants acquire nutrients? Answer> Absorbed from t...

What stage of cellular respiration produces the most ATP? Answer> Oxidative Phosphorylation (26-28 ATP) During what stage of the cell cycle is cyclin most prevalent and MPF most active? Answer> M phase During which phase of meiosis do homologous chromosomes move toward opposite poles o...