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3/13 Daily Catalyst. 1. Compare and contrast ectotherms and endotherms. 2. Based on the graph, what enzymes are represented here? How do you know?. 3/13 Daily Catalyst. 1. Compare and contrast ectotherms and endotherms.

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3 13 daily catalyst
3/13 Daily Catalyst
  • 1. Compare and contrast ectotherms and endotherms.
  • 2. Based on the graph, what enzymes are represented here? How do you know?
3 13 daily catalyst1
3/13 Daily Catalyst
  • 1. Compare and contrast ectotherms and endotherms.
  • Ectotherms rely on the environment to control their bodily temperature (conformer) and endotherms can regulate their own body temperature. Both are a form of thermoregulation to maintain homeostasis.
  • 2. Based on the graph, what enzymes are represented here? How do you know?
3 13 class business
3/13 Class Business
  • Grades are due today
    • Please check infinite campus
  • Happy PI (3.14) Day!
  • Update from eye lab?
brain teaser
Brain Teaser
  • How can you tell if a leprechaun is having a good time?
  • He is Dublin over with laughter!
3 13 agenda
3/13 Agenda
  • Daily Catalyst
  • Class Business
  • Objective
  • Ruminant digestion
  • Dissection lab quiz
  • Homeostasis quiz
3 13 objective
3/13 Objective
  • Interactions among cells of a population of unicellular organisms can be similar to those of multicellular organisms, and those interactions lead to increased efficiency and utilization of energy and matter.
objective breakdown
Objective breakdown
  • Interactions among cells of a population of unicellular organisms can be similar to those of multicellular organisms, and those interactions lead to increased efficiency and utilization of energy and matter.
slide16

Vertebrates whose diet is primarily plants (cellulose) house bacteria in their alimentary canal

    • Symbiotic relationship
    • How?
slide18

The most elaborate adaptations for an herbivorous diet have evolved in the animals called ruminants

    • Deer, cattle, and sheep
    • How is this an example of an adaptation?
slide19

Cud is swallowed again and water is removed

Cow’s own enzymes finally digest the cud

Boluses enter the reticulum where bacteria began hydrolysis. Regurgitation and rechewing of “cud” occurs

Grass boluses enter the rumen

practice question
Practice Question
  • “Chewing its cud” is a common expression about cattle. What is the cud, and what role does it play in bovine nutrition?
  • The cud is regurgitated brew of material from the rumen-once chewed vegetation with bacteria. After a second chewing, the cow swallows the cud, and the stomach chambers continue to break down the cud using its own enzymes.