Phagotrophy (Phagocytosis) is:
A. the movement of small organic molecules across the cell membrane
B. the capture and ingestion of food particles by a cell
C. the synthesis of organic molecules from inorganic molecules using light as an energy source
D. the ability to use photosynthesis and osmosis or particle ingestion for nutrition
B. the capture and ingestion of food particles by a cell
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Which of the following is true about the structure of DNA?
A. Purine and pyrimidine bases are joined by phosphodiester bonds. B. Adjacent bases are stacked on top of each other, one base pair every 0.34 nm. C. Purine and pyrimidine bases are attached to the 1'-carbon of the deoxyribose sugars. D. All of the choices are correct.
Gluten-free food options are becoming more and more common place due to the increased incidence and awareness of celiac disease in the US population. If a person with this disease eats foods containing gluten, the immune system responds by attacking and damaging or destroying his/her own villi. What digestive symptom would NOT be consistent with greatly-reduced numbers of villi?
A. abdominal bloating and pain B. chronic diarrhea C. weight loss D. peptic ulcer E. fatty stools Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the function of villi? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
When cells are not responding to normal controls over growth and division, they form a tissue mass known as a
a. metastasis. b. malignancy. c. tumor. d. carcinogen. e. nucleosome.
Most cutaneous receptors are located ________.
Fill in the blank(s) with correct word