Qingdao Edition Fourth Grade Science Volume 1

Qingdao Edition Fourth Grade Science Volume 1
Category Format Size
Qingdao Edition Fourth Grade Science Volume 1 pptx 6 MB
限时免费领取网站会员

Qingdao Edition Fourth Grade Science Volume 1

Download Points: 0.00
Free Download Upgrade VIP
Favorite Views: 4221 / Downloads: 171
Description

Qingdao version of the first volume of science for the fourth grade, the roots of plants PPT courseware

Part One: Division of Roots

1. Divide according to the occurrence of roots

1. Tap root 2. Lateral root 3. Adventitious root

2. Divide according to root functions

1. Storage roots ⑴ fleshy roots ⑵ tuberous roots

2. Aerial roots ⑴ Climbing roots ⑵ Support roots ⑶ Respiratory roots

3. Parasitic roots

3. Divide according to the overall shape of the roots

1. Tap root system 2. Fibrous root system

Plant Roots PPT, Part 2: Root Structure

1. Root cap: a cap-like structure composed of thin-walled cells. Located at the top of the root apex and surrounding the meristematic zone of the root apex.

2. Meristematic zone: The meristematic zone is located on the inside of the root cap, with a total length of 1-2 mm. It is the main place where new cells divide and produce, and is also called the growth point.

3. Elongation zone: The elongation zone is located in the later part of the meristematic zone. The cell division activity in this zone becomes weaker and weaker and gradually stops, while the cell volume continues to expand and elongate along the longitudinal axis of the root.

Plant Roots PPT, Part 3: The Function of Roots

Plant roots anchor the plant.

Plant roots mainly rely on root hairs to extend into the soil to absorb water. While the roots absorb water, they also absorb nutrients dissolved in the water.

Roots are reservoirs of nutrients.

Keywords: Free download of Qingdao version of fourth grade science PPT courseware, Volume 1, Roots of Plants PPT download, .PPT format;

For more information about the "Roots of Plants" PPT courseware, please click on the "Roots of Plants" ppt tag.

"Plant Roots and Material Absorption" PPT courseware:

"Plant Roots and Material Absorption" PPT courseware Part 1: Discussion 1. What are the fundamental reasons for the continuous growth and elongation of roots? The division of cells in the root apical meristematic zone and the differentiation and elongation of cells in the elongation zone. 2. In agricultural production, transplanting crop seedlings...

"Plant Roots and Material Absorption" PPT:

"Roots of Plants and Material Absorption" PPT Part One: Introduction to Root Systems (1) Root System of Plants: All the roots of a plant together are called root systems. A root system with clearly developed main roots and lateral roots is called a tap root system. There are no obvious main and lateral roots...

"Roots of Plants" PPT download:

Qingdao Edition Fourth Grade Science Volume 1, Plant Roots PPT Download Part One: Observing the Characteristics of Roots 1. Observing the Characteristics of Roots What are the common characteristics of the above roots? Roots have root tips and root hairs, all grow downward, all grow underground, and have main roots, lateral roots, branches...

File Info

Update Time: 2024-10-31

This template belongs to science courseware Qingdao Edition Fourth Grade Science Volume 1 industry PPT template

Qingdao Edition Fourth Grade Science Volume 1 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!

Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content Qingdao Edition Fourth Grade Science Volume 1 is enough.

How to use the Windows system template

Directly decompress the file and use it with office or wps

How to use the Mac system template

Directly decompress the file and use it Office or wps can be used

Related reading

For more detailed PPT-related tutorials and font tutorials, you can view: Click to see

How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box

Notice

Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com

Qingdao Edition Fourth Grade Science Volume 1, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.

(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)

Preview
青岛版四年级科学上册(1)青岛版四年级科学上册(2)
VIP免费客服咨询
赚钱
成为签约合伙人
种草
觅知网“种草官”开始招募啦!!!
客服
售前客服
工作日:9:00-18:00
立即咨询
售后客服
工作日:9:00-22:30
周末:14:00-22:30
立即咨询
需求
填写您的需求