What are the rules for drawing diagrams?
General Rules for drawing Diagrams and Graphs
- Serial number: Every diagram or graph must have a serial number. It is necessary to distinguish one from the other.
- Proper size and scale: A diagram or graph should be of normal size and drawn with proper scale.
- Index: Every diagram or graph must be accompanied by an index.
What makes a good scientific diagram?
a simple line diagram that is accurate such as a visual description, a plan or map. an illustration that describes the subject accurately but incorporates specific surface detail such as colour and patterns, etc.
What are two rules of scientific drawing they have followed?
How to do Scientific Drawings for Biological courses
- Look at the specimen carefully and examine the significant features that will be included in the drawing.
- DRAW ONLY WHAT YOU SEE!!
- All drawings must be done in pencil ONLY.
- Drawings must be large and clear so that features can be easily distinguished.
- No more than two drawings should be on a single page.
How do you label a biological drawing?
Title: The title should state what has been drawn and what lens power it was drawn under (for example, phrased as: drawn as seen through 400X magnification). Title is informative, centered, and larger than other text. The title should always include the scientific name (which is italicized or underlined).
What is a high power drawing?
High-power diagrams draw only a few representative cells. draw the cell wall of all plant cells (usually as a double line) do not draw the nucleus as a solid blob (this is a particularly common error).
What is tissue?
A tissue is a group of cells with a similar structure, organised to carry out specific functions. Examples of tissues: muscle, epithelial tissue (which forms your skin and the lining of your intestine). An organ like the intestine, lung or liver can contain many different types of tissues.
What are the 4 tissue types?
There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).
What are the 5 types of tissue?
- Introduction to cells and tissues Epithelial tissue Connective tissue Nervous tissue Muscle tissue Cartilage and bone.
- Fetal tissues.
What is tissue class 9th?
A tissue is defined as a cluster of cells which are similar in structure and work together to perform a particular function. 2. The use of tissues in multicellular organisms is to provide structural and mechanical strength as well as to allow division of labour.
What is epidermis class 9th?
Epidermis: It is the outermost protective layer of plant organs. The epidermis is usually made of a single layer of cells. Cells of epidermis are elongated and flattened, without intercellular space. In leaves, epidermis bears small pores called stomata.
What is tissue Short answer?
Question 1: Define the term “tissue”. Answer: A group of cells which is meant to perform a specific function is called tissue. Answer: Simple tissues are composed of similar cells, while complex tissues are composed of different types of cells.
What are the 3 types of meristems?
There are three primary meristems: the protoderm, which will become the epidermis; the ground meristem, which will form the ground tissues comprising parenchyma, collenchyma, and sclerenchyma cells; and the procambium, which will become the vascular tissues (xylem and phloem).
What is Tunica and Corpus?
Tunica forms a protoderm which gives rise to the sterna and leaves the epidermis. Corpus is the inner mass that splits to create procambium and terrestrial meristem. Sometimes, tunica is multilayered, and then only the outer layer builds the epidermis and the leftover layers with a corpus from the cortex of the shoot.
What are primary meristems?
A primary meristem is a type of meristematic tissue that is responsible for the primary growth. Primary growth is a growth in length. An example of a primary meristem is the apical meristem. Apical meristems are meristematic tissues located in the apices of plant, e.g. root apex and shoot apex.
Why there are no vacuoles in the intercalary meristem?
Explanation: vacuoles are responsible for storage of food and water the intercalary tissue do not store them the vacuoles contain with sap provide rigidity to SAP. this is provided is rigidity to cell this property of vacouls may not allowed the intercalary to to divide and manufacture new cell.
Can we think why they would lack vacuoles?
Meristematic cells have immense potential to divide. For this purpose, they have dense cytoplasm and thin cell wall. Due to this reason meristematic cells lack vacuole.
Why vacuoles are absent in animal cell?
Animal cells have small vacuoles because they don’t need to store as much water as other organisms such as plants.
Why are vacuoles absent in marriage Matic tissue?
Vacuole is a cell organelle used to store waste materials, store nutrients, excess salts etc. Meristematic cells are mainly concerned with cell division. Their primary function is mitosis. They do not have any waste material to store so vacuoles are usually absent in the meristematic cells.
What is the difference between Meristematic and permanent tissue?
Difference between Meristematic and Permanent Tissue Meristematic tissues in plants consist of a mass of undifferentiated cells whose main function is to participate in plant growth. Permanent tissues, on the other hand, are differentiated tissues, carrying out dedicated functions.
Why do meristematic cells have large nuclei?
Answer: As the meristematic tissues have the function of the multiplication of the cells through the mitosis, therefore they have a large size of the nuclei as DNA is present in the nucleus which is the main reproductive site for the new cells.
Where will you look for meristematic cells in a plant body?
Where will you look for meristematic cells in a plant body? The meristematic tissues are present only at the growing regions such as shoot tip, root tip and cambium parts of the plant.