Henry David Thoreau was born at what is now the Thoreau Farm Trust in Concord, Massachusetts on 12 July 1817 to Cynthia (1787-1872) and John Thoreau (1787-1859), pencil maker. He had two sisters and one brother; Helen, Sophia, and John.
All plant cells are characterized by several common features, such as chloroplasts, a cell wall, and a large vacuole. These features also differentiate plant cells from animal cells. In addition, there is a number of specialized types of plant cells that are found only in vascular plants.ll plant cells are characterized by several common features, such as chloroplasts, a cell wall, and a large vacuole. These features also differentiate plant cells from animal cells. In addition, there is a number of specialized types of plant cells that are found only in vascular plants.
show/hide words to know. 1  Chlorophyll: the pigment that gives plants their green color and allows them to absorb sunlight... 2  Chloroplast: a part of a cell found in plants that converts light energy into energy plants can use (sugar). 3  Thylakoid: the disk-shaped parts of a plant cell where light-dependent reactions occur... Chloroplast: a part of a cell found in plants that converts light energy into energy plants can use (sugar). 2  Other living organisms such as algae also have cells that contain chloroplasts. 3  Thylakoid: the disk-shaped parts of a plant cell where light-dependent reactions occur...