Tissue Assignment Quiz

In a lush garden, Aarush noticed that the girth of the tree stems was increasing significantly. Curious about this phenomenon, he wondered what was causing this growth.

• Apical meristem

• Lateral meristem

• Intercalary meristem

• Parenchyma tissue.

Answer explanation

The girth of the stem increases primarily due to the activity of the lateral meristem, not the apical meristem. Lateral meristems, such as the cambium, contribute to secondary growth, increasing stem thickness.

In a vibrant garden, Neha is studying the different types of plant cells. She learns that sieve tube and companion cells play a crucial role in transporting nutrients. Which type of plant tissue is she focusing on?

• Xylem

• Phloem

• Cork

• Cambium

Answer explanation

Sieve tubes and companion cells are specialized structures found in phloem, which is responsible for transporting nutrients and sugars in plants. Xylem, cork, and cambium do not contain these cell types.

Aisha is studying plant biology and learns about different types of plant tissues. She comes across a question in her textbook: Which of the following is an example of simple permanent tissue?

• Parenchyma

• Xylem

• Apical meristem

• Phloem

Answer explanation

Parenchyma is a type of simple permanent tissue that is involved in storage, photosynthesis, and tissue repair. Unlike xylem and phloem, which are complex tissues, parenchyma consists of a single cell type.

In a forest, Tara is studying the different components of trees. She learns about xylem and its role in transporting water. During her research, she discovers that some components of xylem are dead. Which component of xylem is dead?

• Tracheids

• Vessels

• Xylem fibres

• All of the above

Answer explanation

All components of xylem, including tracheids, vessels, and xylem fibers, are dead at maturity. This allows them to efficiently transport water and minerals in plants, making 'All of the above' the correct answer.

Aanya is studying different types of cells in her biology class. She learns that some cells do not have a nucleus. Which of the following cells lack a nucleus?

• Sieve tube

• RBC

• Companion cell

• Both A and B

Answer explanation

Sieve tubes and red blood cells (RBCs) lack a nucleus. Sieve tubes are part of the phloem in plants, while mature RBCs in mammals lose their nucleus to maximize space for hemoglobin, making 'Both A and B' the correct answer.

In a botanical garden, Arjun is studying different types of plants. He learns that a certain type of tissue in plants is capable of dividing and redividing, allowing for growth and regeneration. This tissue is essential for the plant's development. What is this tissue called?

• Complex tissue

• Permanent tissue

• Meristematic tissue

• Protective tissue

Answer explanation

Meristematic tissue consists of undifferentiated cells that can divide and redivide, allowing for growth in plants. In contrast, complex and permanent tissues are made up of differentiated cells that do not divide.

In a botanical garden, Ishaan is studying different types of plant tissues. He comes across various samples and needs to identify which of the following tissue is an example of complex permanent tissue;

• Meristematic tissue

• Xylem

• Phloem

• Both B and C

Answer explanation

Complex permanent tissues are made up of more than one type of cell. Xylem and phloem are both examples of complex permanent tissues, as they consist of various cell types working together for transport.

In a botanical garden, Alisha is studying the unique properties of cork oak trees. She learns that the cells of cork are dead and have a chemical in their walls that make them impervious to gases and water. The chemical is :

• Lignin

• Suberin

• Wax

• Cutin

Answer explanation

The correct answer is Suberin, a waxy substance found in cork cells that makes them impermeable to gases and water. Lignin, wax, and cutin do not provide the same impermeability as suberin.

In a botanical garden, Dhruv is studying the structure of various plants. He learns that the material which is present in the xylem vessels and tracheids is crucial for the plants' water transport. What is this material?

• Lignin

• Cutin

• Suberin

• Wax

Answer explanation

Lignin is the key material found in xylem vessels and tracheids, providing structural support and rigidity to the plant. It is essential for water conduction and helps prevent collapse of these vascular tissues.

Siya is studying how plants survive in the harsh conditions of the desert. She learns that in deserts, the rate of water loss from leaves gets reduced due to the presence of:

• Cuticle

• Suberin

• Stomata

• lignin

Answer explanation

The cuticle is a waxy layer on plant leaves that reduces water loss by creating a barrier against evaporation, making it essential for desert plants to conserve water in arid conditions.