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Week 6 Stack
from weeks 1-6
Question | Answer |
---|---|
(ch2) Negative feedback loops vs. Positive feedback loops | Negative are inhibitory. Positive feedback is stimulatory. |
(ch3) What info does atomic number tell you? | number of protons in the nucleus |
(pg46) Difference btw Catabolism and Anabolism | Catabolism describes chem rxtn that break down larger food molecules and release energy. Anabolism is the many chem rxtns that build larger and more complex chem molecules. |
(pg58) What are lipids composed of? Why don't they dissolve in water? | carbon, hydrogen and oxygen. They are generally nonpolar. |
(pg90) What are the three cell extensions? | microvilli, cilia and flagella. |
(pg107) Endocytosis meaning and examples, and Exocytosis. | In endocytosis, the plasma membrane "traps" and brings materials into cell. Ex: phagocytosis and pinocytosis. Exocytosis are when cells "pinch" off entire vesicle and it moves out. |
(pg128) Mitosis has 4 distinct phases? | P-prophase, M-metaphase, A-anaphase, T-telophase |
(pg138) The four prinicipal types of Tissue? | Epithelial, Connective, muscle and Nervous tissues. |
(pg170) What are examples for some functions of the 4 tissues? | Skeletal-movemt of bones/heat production. Smooth-movemt of substances along tracts. Cardiac-contraction of heart. Nervous-excitability conduction. |
(pg186) What network of nerves are in the dermis? What sensory info do they process? | Somatic sensory receptors. Process pain, pressure, touch, temperature. |