A biologist isolates numerous tiny, green pigment cells from a sample of lake water. The cells are covered with a mucilaginous sheath. They contain relatively large amounts of chlorophyll a and phycobilin pigments and lack a compact, organized nucleus. Electron microscopy will reveal that these cells are also contain which of the following pairs of subcellular structures?
A. Ribosomes and chloroplasts
B. Ribosomes and mitochondria
C. Golgi bodies and a cell wall
D. Thylakoids and a cell wall
E. Chloroplasts and mitochondria
Ans: D. Thylakoids and a cell wall
You might also like to view...
In the figure above, which of the following conclusions is most logical based on the data?
A) Females produce more eggs more quickly when exposed to breeding males. B) Females produce eggs more quickly when exposed to many males than females paired with a male. C) All non-isolated females do just as well as isolated females. D) After four weeks together, females with males produce mature follicles to the same extent as females without males.
Humans provide ecological niches for bacterial populations
A. true B. false
Areas with a high population and low vaccination rates are susceptible to which type of transmission for yellow fever?
A) urban B) jungle C) intermediate D) jungle, intermediate, and urban E) jungle and intermediate
Which of the following are energy-storing polymers?
A. lipids B. carbohydrates C. carbohydrates and lipids D. proteins and lipids E. proteins