cell membrane C. cytoplasm D. vacuole 相关知识点: 试题来源: 解析 A。本题考查细胞结构的功能。nucleus(细胞核)是细胞的控制中心,控制着细胞的代谢和遗传。cell membrane(细胞膜)主要起控制物质进出细胞的作用。cytoplasm(细胞质)是细胞进行生命活动的主要场所。vacuole(液泡)主要储存物质。
NotificationCenter ObjCRuntime OpenGL OpenTK PdfKit Photos PhotosUI PrintCore QTKit QuartzComposer QuickLook QuickLookUI SafariServices SceneKit ScriptingBridge SearchKit Security Social SpriteKit StoreKit System System.Net.Http SystemConfiguration UserNotifications VideoSubscriberAccount VideoToolbox Vision WebKit...
Skeletal muscle contains a designated population of adult stem cells, called satellite cells, which are generally quiescent. In homeostasis, satellite cells proliferate only sporadically and usually by asymmetric cell division to replace myofibres damaged by daily activity and maintain the stem cell pool...
Growth extent and direction determine cell and whole-organ architecture. How they are spatio-temporally modulated to control size and shape is not well known. Here we tackled this question by studying the effect of brassinosteroid (BR) signalling on the
For example, you can specify the number of digits to the right of a decimal point, or you can add a pattern and border to the cell. You can access and modify the majority of these settings in the Format Cells dialog box (on the Format menu, click Cells). The "More Information" ...
DataGridCell A content control displays a single piece of content by setting its Content property. The content property is of type Object, so there are no restrictions on what a content control can contain. Because many classes that derive from object can contain other controls, you can create...
When three objects lie on the vertices of an isosceles triangle near the center of the cylinder they rarely exert any control over the angular positions of firing fields. However, if the isosceles triangle is dilated so that its vertices are against the apparatus wall, the objects exert ...
The characteristic leaf shapes we see in all plants are in good part outcome of the combined action of several transcription factor networks that translate into cell division activity during the early development of the organ. We show here that wild-type leaves have distinct transcriptomic profiles ...
The AutoSizeControl method in this example also has a textPadding parameter that represents the padding to apply to all edges of the control. To make the padding appear equal, align the text with the MiddleCenter value of System.Drawing.ContentAlignment if your control supports it. C# Copy ...
The center of the transducer was left uncoated with gold in order to permit bright-field light to reach the sample, allowing us to align optics and obtain even illumination for DIC imaging. Recordings were carried out in response to peak negative pressures ranging from 0.2–0.25 MPa, as...