The nucleus directs all activities that occur within the cell and also contains the cell’s genetic material, or DNA.The nucleus gives the signal to the cell to grow, divide or make proteins. A nuclear envelope surrounds the nucleus, allowing only certain substances to enter and exit. The n...
A. To carry out photosynthesis. B. To store water. C. To control the activities of the cell. D. To provide support. 相关知识点: 试题来源: 解析 C。中文解析:细胞核控制着细胞的活动,“The nucleus, which controls the activities of the cell, was also clearly visible.”。 反馈...
The nucleus is an organelle that contains the genetic information for that organism. In an animal cell, the nucleus is located inthe central region of the cell. In a plant cell, the nucleus is located more on the periphery due to the large water-filled vacuole in the center of the cell....
结果1 题目What contains the cell's DNA? A. The cytoplasm B. The mitochondria C. The nucleus D. The E. ndoplasmic reticulum 相关知识点: 试题来源: 解析 C。解析:细胞核包含细胞的 DNA,细胞质、线粒体和内质网都不包含 DNA。反馈 收藏
What is the non-living part of a plant cell? What is the smallest part of a cell? What are cuboidal cells? What does a nucleus do in a plant cell? What are mesodermal cells? What is another name for a prokaryotic cell? What must a cell do first to divide successfully?
结果1 题目What gives the plant cell its shape? A. The nucleus. B. The chloroplasts. C. The cell wall. D. The plasmodesmata. 相关知识点: 试题来源: 解析 C。解析:文章中提到植物细胞有一个明显的细胞壁,它赋予了细胞形状。反馈 收藏
Plant fiber is what type of cell? What structure surrounds the cell membrane in plants? What does a nucleus do in a plant cell? What are centrioles? What is the most important organelle in a plant cell? In plant cells, what does the vacuole do?
A. The nucleus. B. The central vacuole. C. The cell wall. D. The microscope. 相关知识点: 试题来源: 解析 C。中文解析:细胞壁为植物细胞提供支持和保护,文中有“The cell wall, which provides support and protection to the cell.”。 反馈 收藏 ...
What is the role of oncogenes in controlling cell division? What is the purpose of cell division? What does a nucleus do in a plant cell? What are the 2 parts of cell division? What helps hold the nucleus in place in a cell? What cell part controls the process of mitosis? What orga...
Within a cell, a DNA double helix is approximately 10 nanometers (nm) wide, whereas the cellular organelle called a nucleus that encloses this DNA can be approximately 1000 times bigger (about 10 μm). See how cells compare along a relative scale axis with other molecules, tissues, and ...