What is the main function of a cell membrane? A. To control what enters and leaves the cell B. To store genetic information C. To produce energy D. To break down food 相关知识点: 试题来源: 解析 A。本题考查细胞膜的主要功能。选项 A 控制物质进出细胞是细胞膜的主要功能;选项 B 存储遗传...
The function of the cell membrane almost does not exist during osmosis as well. Osmosis is the movement of water in and out of a cell. This water movement happens naturally to try and balance the solution concentration of the water. If there are too many solutes such as proteins in a sol...
解析 B。本题考查细胞膜的主要成分。选项 A“Protein”蛋白质在细胞膜中有重要作用,但不是主要成分;选项 B“Lipid”脂质是细胞膜的主要成分;选项 C“Carbohydrate”碳水化合物在细胞膜上起识别等作用,并非主要成分;选项 D“Nucleic acid”核酸主要存在于细胞核和细胞质中,不是细胞膜的主要成分。
What is the function of cell cortex?A.Although actin is found throughout the cytoplasm of a eukaryotic cell, in many cells it is highly concentrated in a layer just beneath the plasma membrane. In this region, called the cell cortex, actin filaments are linked by actin-binding proteins into...
What is a specialized plant cell? Where is the cell membrane located in a plant cell? In a plant cell, what is the function of the cell membrane? What is the opposite of a turgid plant cell? What does the nuclear pore do in a plant cell?
What is the function of the cell membrane? Why is cell division so important? What is the function of a plant cell? Why is the cell cycle important? What are the advantages of cell differentiation? What is the function of Sertoli cells?
What is the function of the cell wall in an onion cell? Building Blocks Of Living Organisms: Cells are the fundamental building blocks of all living things, including plants. Plant cells are eukaryotic, which means that they are complex with many structures and organelles that keep them alive ...
1. What is the cell membrane? 2. What does it contain? How does it function? 3. Is it prokaryotes or eukaryotes? What is the structure of the cell membrane? What is the internal membrane system of plastids called? What is the more complex cell type that has a membrane-enclosed nucleus...
The egg is covered in a thick membrane which the sperm must penetrate. Once inside of the egg, a chemical reaction takes place to keep other sperm from gaining entry. Meanwhile, the successful sperm cell will lose its tail while its DNA packed head will fuse with the nucleus of the egg....
Briefly describe five functions of membrane proteins. Why does a eukaryotic cell need so many compartments(organelles)? What is the function of the nucleus? How do genes in the nucleus control the functions of other parts of the cell?