Ansc 300 Final Exam with 100 questions and correct answers 2024 lately updated

Ansc 300 Final Exam with 100 questions and correct answ ers 2024 lately updated Communication using ____ and ____ is key to homeostasis - ✔✔ANSW✔✔electrical and chemical signals What are examples of homeostasis? - ✔✔ANSW✔✔body temperature, blood glucose What is energy made from? - ✔✔ANSW✔✔Fats, carbs (glucose/cellulose), protein What are the similarities between prokaryotic and eukaryotic cells? - ✔✔ANSW✔✔- have a cell membrane -have cytoplasm -have ribosomes -have DNA What are the differences between prokaryotes and eukaryotes? - ✔✔ANSW✔✔prokaryotes: small and simple, unicellular, nucleus is absent, bacteria, circular DNA, lack membrane bound organelles Eukaryotes: large and complex, unicellular or multicellular, cell division by mitosis, plant, animal, human cells What is the function of the cell membrane? - ✔✔ANSW✔✔-separates the cell from ECF -regulates exchanges of molecules w/ environment -structural support What is the membrane composed of? - ✔✔ANSW✔✔- inner mitochondria membrane: 76% proteins, 24% lipids - Myelin around never cells: 79% lipids, 18% proteins -Lipids: mainly phospholipids -Proteins: integral or peripheral -Carbs: attached to proteins and lipids on external of cell What makes up phospholipids? - ✔✔ANSW✔✔- polar head (hydrophillic - attracted to water) -non-polar fatty acid tail (hydrophobic - not attracted to water) What is the job of the cytoskeleton? - ✔✔ANSW✔✔-provides shape, organization, movement, intracellular transport, cell connection What are microfilaments? - ✔✔ANSW✔✔- form a network -just inside the cell membrane: made of actin what are microtubules? - ✔✔ANSW✔✔-largest cytoskeleton fiber -ex: cilia and flagella what are examples of intermediate filaments? - ✔✔ANSW✔✔myosin and keratin What is contained in centrosome? what does it do? - ✔✔ANSW✔✔-has 2 centrioles - directs the movement of DNA in cell division