1.2 Flashcards
What are meristematic tissues?
Meristematic tissues are undifferentiated living tissues in plants which are responsible for plant growth..
True or False: Meristematic tissues are responsible for the growth of plants.
True
Fill in the blank: The primary meristematic tissue responsible for lengthening of stems and roots is called __________.
apical meristem (tips of plant shoots and roots)
What is the function of lateral meristem?
Lateral meristem is responsible for the thickness or girth growth of stems and roots.
Multiple Choice: Which type of meristem is found at the tips of roots and shoots? A) Lateral meristem B) Apical meristem C) Intercalary meristem
B) Apical meristem
What types of cells make up meristematic tissues?
Meristematic tissues consist of small, actively dividing cells that are important for the growth of plants
Fill in the blank: The growth that results in an increase in length is called __________ growth.
primary
What is secondary growth in plants?
Secondary growth refers to the increase in thickness or girth of the plant, primarily due to the activity of lateral meristems.
Multiple Choice: Which type of meristematic tissue is involved in secondary growth? A) Apical meristem B) Lateral meristem C) Intercalary meristem
B) Lateral meristem
True or False: Meristematic cells can differentiate into various types of mature plant cells.
True
Fill in the blank: The process of cell division in meristematic tissues is called __________.
mitosis
What are the main characteristics of meristematic cells?
Meristematic cells are small, have a large nucleus, thin cell walls, and are capable of continuous division.
Multiple Choice: Which of the following is NOT a type of meristematic tissue? A) Apical B) Lateral C) Vascular
C) Vascular
True or False: Meristematic tissues are found only in young plants.
False
Fill in the blank: The tissue responsible for producing secondary xylem and phloem is known as __________.
cambium
Multiple Choice: Which type of growth occurs at the apical meristem? A) Lateral growth B) Primary growth C) Secondary growth
B) Primary growth
What is the main difference between primary and secondary growth?
Primary growth increases the length of the plant, while secondary growth increases the thickness.
True or False: All plants exhibit both primary and secondary growth.
False
Fill in the blank: The region where meristematic tissue is located is called the __________.
meristem
What is the role of cambium in plant growth?
Cambium is responsible for the production of new vascular tissues (xylem and phloem) during secondary growth.
Multiple Choice: In which type of plants is secondary growth most commonly found? A) Herbaceous plants B) Woody plants C) Annual plants
B) Woody plants
What is primary growth in plants?
Primary growth is the increase in length of the plant, resulting from the activity of the apical meristems.
True or False: Secondary growth occurs in all types of plants.
False. Secondary growth primarily occurs in woody plants.
Fill in the blank: Secondary growth increases the ________ of the plant.
girth
Which tissue is responsible for secondary growth?
The vascular cambium is responsible for secondary growth.
What is the main necessity of primary growth?
The main necessity of primary growth is to allow plants to reach light and resources by increasing height and developing new leaves.
Function of primary phloem?
Transport product of photosynthesis from leaves to other parts of plants
Function of primary xylem?
Transport mineral salts and water from soils via roots to the leaves. Provide support to herbaceous/young plants
Necessity of secondary growth?
Produce more xylem and phloem ( replace old/damage), provide mechanical support, provide stability to plant (increase the stem and root diameter to suit height of plants)
