The simplest type of cells were most likely the first type of cells that formed on Earth. These are calledprokaryotic cells. All prokaryotic cells have a cell membrane surrounding the cell, cytoplasm where all of the metabolic processes happen, ribosomes that make proteins, and a circular DNA ...
In a biological research, the scientist observed different types of cells. The main component of plant cells is ___. A. cellulose B. chlorophyll C. starch D. protein 相关知识点: 试题来源: 解析 A。本题考查生物结构中植物细胞的主要成分。cellulose(纤维素)是植物细胞细胞壁的主要成分。chlorophyll...
In culturing Toxoplasma gondii, it was demonstrated that they could invade different types of cells. Primary and transplantable cell cultures were used; they were obtained from man (from the liver, uterus, amnion, pharyngeal, epithelium), monkey (from the heart and kidney), chick embryo and ...
One of the primary roles of this messenger molecule is to instruct a cell to divide into two sister cells. This molecule, though essential to normal cellular function, has been linked to cancer because it instructs all cells to divide, including cancer cells. Most cell membrane phospholipids ...
What are all the different blood types? Which blood types are universal donors? What type of blood cell has proteins on it that determines blood type? There are different stem cells that give rise to red blood cells, the various white blood cells, and platelets in our bodies. (a) What ...
This lesson will teach you about different cells in the human body. You will learn about four of the main type of cells that help the human body perform important functions. What Are Cells? Take a look at your hand. You may notice that it is covered in skin, or that you need to...
Plant cells have several types of cells that perform multiple functions. The least specialized plant cell is the parenchyma cell, which metabolizes and store food. Collenchyma and sclerenchyma cells help support the plant. Xylem cells conduct water whilephloemconducts food. Epidermal cells cover the...
Stem cells can ___ into different types of cells in the body. A. differentiate B. multiply C. mutate D. degenerate 相关知识点: 试题来源: 解析 A。本题考查干细胞的特性相关的动词。在生物技术中,干细胞能够分化(differentiate)成身体内不同类型的细胞。“multiply”是增殖的意思;“mutate”是突变;“...
Cells consist of my parts, what is considered the power house of cells? What jobs do ALL cells have to be able to carry out? what do they mean by cells? What are the five major components of a cell? What are the different types of cells in the body? Explain each in detail....
Cells EQ: What are the structures and functions of the different types of cells and cell parts? Discovery of Cells First cells were discovered by Robert Hooke –Looked at cork cells –No organelles were visible Van Leeuwenhoek looked a living cellular life in pond water –“EEWW this is in...