Plant Tissues Quiz

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Questions and Answers

What is a tissue?

A tissue is a group of similar cells performing a specific function.

What is the utility of tissues in multicellular organisms?

Tissues allow for division of labor and specialization in multicellular organisms, making their functions more efficient and complex .

Which of the two onions has longer roots? Why?

Jar 1, because the roots are not cut. (correct)

Jar 2, because the onion is bigger.

Jar 2, because the roots were cut.

Jar 1, because the jar is bigger.

Do the roots continue growing even after we have removed their tips?

False Signup and view all the answers

Why would the tips stop growing in jar 2 after we cut them?

Cutting the root tips removed the apical meristem, which is responsible for root growth. Signup and view all the answers

Where is apical meristem found?

Apical meristem is found at the growing tips of stems and roots. Signup and view all the answers

What is the utility of tissues in multi-cellular organisms?

Tissues allow for division of labor and specialization in multicellular organisms, making their functions more efficient and complex . Signup and view all the answers

What happens to the cells formed by meristematic tissue?

They differentiate and lose the ability to divide, forming permanent tissues. Signup and view all the answers

Why would the cells of this tissue lack vacuoles?

Vacuoles are involved in water storage and regulation of turgor pressure. These cells are highly active and require a lot of cytoplasm for carrying out their functions, so they don't need large vacuoles for water storage. Signup and view all the answers

Are all cells similar in structure?

No, there are many distinct types of cells, each with a unique purpose. Signup and view all the answers

How many types of cells can be seen?

Many types of cells can be seen. Signup and view all the answers

Can we think of reasons why there would be so many types of cells?

Different types of cells are needed to perform specialized functions in various parts of the plant. Signup and view all the answers

Which tissue makes up the husk of coconut?

Sclerenchyma Signup and view all the answers

What are the constituents of phloem?

Sieve tubes, companion cells, phloem fibres and phloem parenchyma Signup and view all the answers

Name types of simple tissues.

Parenchyma, Collenchyma, and Sclerenchyma. Signup and view all the answers

How do these body parts move?

Movement in the body is caused by the contraction and relaxation of specialized cells called muscle cells. Signup and view all the answers

Why would cells need oxygen?

Cells need oxygen for cellular respiration, which is the process of breaking down glucose to release energy in the form of ATP. Signup and view all the answers

Name the tissue responsible for movement in our body.

Muscular tissue is responsible for movement in our body. Signup and view all the answers

What does a neuron look like?

A neuron consists of a cell body, an axon, and dendrites. Signup and view all the answers

Give three features of cardiac muscles.

Cardiac muscles are striated, branched, and uninucleate. Signup and view all the answers

What are the functions of areolar tissue?

Areolar tissue is a type of connective tissue that provides support, holds organs in place, and helps in repair of tissues. Signup and view all the answers

What is the specific function of the cardiac muscle?

Cardiac muscle is responsible for the rhythmic contraction and relaxation of the heart, pumping blood throughout the body. Signup and view all the answers

Areolar tissue is a type of connective tissue.

True Signup and view all the answers

What is the role of epidermis in plants?

Protection from external environment Signup and view all the answers

How does the cork act as a protective tissue?

Cork cells are dead and have thick, suberized walls, making them impervious to water and gases. This provides protection against damage, pathogens, and water loss. Signup and view all the answers

Study Notes

Tissues

Living organisms are made of cells
Unicellular organisms have one cell performing all functions
Multicellular organisms have specialized cells
Specialized cells work together efficiently
Cells with a similar structure and function form a tissue.

Plant Tissues

Plant growth occurs in specific regions
Meristematic tissue is the dividing tissue
Apical meristem: At the growing tips of stems and roots, increasing length
Lateral meristem: Increases stem and root girth
Intercalary meristem: At the base of leaves or internodes, increasing twig length
Permanent tissues are derived from meristematic tissues
Simple permanent tissues: Similar cells performing a single task
- Parenchyma: Thin-walled, loosely packed cells, provide support, store food
- Collenchyma: Unevenly thickened cell walls, provide flexible support
- Sclerenchyma: Thickened dead cells provide hard support
Complex permanent tissues: Multiple specialized cells performing a combined function
- Xylem: Transports water and minerals
- Phloem: Transports food

Animal Tissues

Animal tissues are classified by their functions
Epithelial tissue: Protective covering; tightly packed cells
- Squamous: Thin, flat cells for diffusion
- Cuboidal: Cube-shaped cells for secretion and absorption
- Columnar: Column-shaped cells for absorption and secretion
- Stratified squamous: Many layers found on the skin
- Glandular: Specialized for secretion.
Connective tissue: Connects and supports other tissues
- Areolar: Between skin and muscles supports organs
- Adipose: Stores fat
- Cartilage: Supporting tissue in joints, nose, ears
- Bone: Rigid support, calcium matrix
- Blood: Transports substances, fluid matrix, has cells
Muscular tissue: Enables movement
- Striated: Voluntary movements (skeletal muscles)
- Smooth: Involuntary movements (digestive tract)
- Cardiac: Involuntary heart muscle
Nervous tissue: Transmits electrical signals
- Neurons: Specialized cells carrying impulses

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Description

Test your knowledge on plant tissues and their functions. This quiz covers the types of tissues, their characteristics, and roles in plant growth. From meristematic to permanent tissues, explore how plants are structured at the cellular level.