bio quiz

Question 1

Monocot
Seed Structure

Answer 1

Monocots have seeds with one cotyledon (seed leaf).

Question 2

Monocot
Root System

Answer 2

Fibrous root system, consisting of thin, branching roots.

Question 3

Monocot
Stem Anatomy

Answer 3

Vascular bundles scattered throughout the stem.

Question 4

Monocot
Leaf Venation

Answer 4

Parallel venation, where veins run parallel to each other along the length of the leaf.

Question 5

Dicot
Seed Structure

Answer 5

Dicots have seeds with two cotyledons (seed leaves).

Question 6

Dicot
Root System

Answer 6

The taproot system is characterized by a main root that grows downward and lateral roots branching off.

Question 7

Dicot
Stem Anatomy

Answer 7

Vascular bundles are arranged in a ring around the stem.

Question 8

Dicot
Leaf Venation

Answer 8

Netted or reticulate venation, where veins form a branching network

Question 9

(Stem) Epidermis

Answer 9

The outermost layer of cells covers the stem, providing protection.

Question 10

(Stem) Cortex

Answer 10

Region of parenchyma cells between the epidermis and vascular bundles, involved in storage and support.

Question 11

(Stem) Vascular Bundles

Answer 11

Contains xylem (responsible for water and mineral transport) and phloem (responsible for nutrient transport).

Question 12

(Stem) Parenchyma Cells

Answer 12

Found in the cortex and pith, involved in photosynthesis, storage, and secretion.

Question 13

(Stem) Collenchyma Cells

Answer 13

Elongated cells with thickened cell walls, provide flexible support to the stem.

Question 14

(Stem) Sclerenchyma Cells

Answer 14

Provide rigidity and support, often found as fibres or sclereids.

Question 15

(Root) Epidermis

Answer 15

The outermost layer of cells covering the root, is responsible for the absorption of water and nutrients.

Question 16

(Root) Cortex

Answer 16

The region between the epidermis and vascular cylinder, contains parenchyma cells for storage and radial movement of water and nutrients.

Question 17

(Root) Endodermis

Answer 17

A single layer of cells surrounds the vascular cylinder, regulating the passage of water and nutrients into the vascular tissue.

Question 18

(Root) Pericycle

Answer 18

Surround vascular bundles and supports xylem and phloem.

Question 19

(Root) Vascular Cylinder

Answer 19

Contains xylem and phloem for the transport of water, minerals, and nutrients.

Question 20

(Root) Root Hairs

Answer 20

Extensions of epidermal cells that increase surface area for absorption.

Question 21

(Leaf) Epidermis

Answer 21

The outermost layer of cells covers the leaf, serving as a protective barrier.

Question 22

(Leaf) Palisade Mesophyll

Answer 22

The layer of elongated parenchyma cells containing chloroplasts, responsible for photosynthesis.

Question 23

(Leaf) Spongy Mesophyll

Answer 23

Loose arrangement of parenchyma cells with air spaces between them, facilitating gas exchange.

Question 24

(Leaf) Stomata

Answer 24

Pores in the epidermis are surrounded by guard cells, regulating gas exchange and water loss.

Question 25

(Leaf) Guard Cells

Answer 25

Specialized cells that control the opening and closing of stomata.

Question 26

(Leaf) Veins

Answer 26

Contains xylem and phloem for transport of water, minerals, and nutrients

Question 27

Dermal Tissue

Answer 27

• Function: Protection, regulation of gas exchange, and absorption of water and nutrients.
• Location: Outermost layer of the plant, covering all aerial parts.

Types:
- Epidermis: Single layer of tightly packed cells covering the plant’s surface.
- Cuticle: Waxy layer secreted by the epidermis, reducing water loss and providing protection against pathogens.

Question 28

Vascular Tissue

Answer 28

• Function: Transport of water, minerals, and nutrients throughout the plant.
• Location: Found in the vascular bundles, which are distributed throughout the plant.

Types:
- Xylem: Conducts water and minerals from the roots to the rest of the plant.
- Phloem: Transports sugars, amino acids, and other organic compounds from sources (e.g., leaves) to sinks (e.g., roots).

Question 29

Meristematic Tissue

Answer 29

• Function: Responsible for plant growth and development through cell division.
• Location: Found in regions of active growth, such as the tips of roots and shoots, and in lateral meristems.

Types:
- Apical Meristem: Located at the tips of roots and shoots, responsible for primary growth in length.
- Lateral Meristem: Found in the cambium, responsible for secondary growth in thickness.

Question 30

Ground Tissue

Answer 30

• Function: Performs various functions such as photosynthesis, storage, and support.
• Location: Fills the space between dermal and vascular tissues.

Types:
- Parenchyma: Thin-walled cells with large central vacuoles, involved in photosynthesis, storage, and secretion.

• Collenchyma: Cells with unevenly thickened cell walls, providing flexible support to growing parts of the plant.
• Sclerenchyma: Cells with thick, rigid cell walls, providing mechanical support and protection. Includes fibers and sclereids.