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In Biology / High School | 2025-07-03

Write the answers to the following questions:

Q1. Define reproduction?

Q2. Identify and describe the functions of any two plant tissues.

How many types of mesophyll tissues are there and what are their functions?

Asked by zoeyanderson3400

Answer (2)

Reproduction is the process by which organisms produce new individuals, essential for species survival. Two plant tissues, xylem and phloem, serve to transport water/nutrients and sugars, respectively. Mesophyll tissues are divided into palisade and spongy types, which are critical for photosynthesis and gas exchange.
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Answered by Anonymous | 2025-07-04

Q1. Define Reproduction:
Reproduction is a biological process by which organisms give rise to offspring, ensuring the continuation of their species. It can occur through two main types: asexual reproduction, where a single organism or cell produces offspring identical to itself, and sexual reproduction, which involves the combination of genetic material from two parent organisms, resulting in genetic diversity among the offspring.
Q2. Identify and Describe the Functions of Any Two Plant Tissues:

Xylem:

Function: Xylem is responsible for the transportation of water and dissolved minerals from the roots to the rest of the plant. It also provides structural support due to its lignified cell walls.
Description: It consists of various cell types, including tracheids and vessel elements, which form tubes for water conduction, and parenchyma cells for storage.


Phloem:

Function: Phloem's primary role is the transport of organic nutrients, especially sugar (sucrose), throughout the plant from the leaves where photosynthesis occurs to other parts of the plant for growth and storage.
Description: It is composed of sieve tube elements, companion cells, phloem fibers, and phloem parenchyma. The sieve tube elements form the channels for nutrient flow, facilitated by companion cells that help load and unload materials.



How many types of mesophyll tissues are there and what are their functions?
Mesophyll, located in plant leaves, is primarily involved in photosynthesis. There are two main types of mesophyll tissues:

Palisade Mesophyll:

Function: This tissue is primarily responsible for capturing sunlight for photosynthesis. It contains tightly packed cells rich in chloroplasts, maximizing light absorption.
Location: Found beneath the upper epidermis of the leaf.


Spongy Mesophyll:

Function: It facilitates gas exchange for photosynthesis and respiration through its loosely arranged cells with air spaces.
Location: Located below the palisade mesophyll and above the lower epidermis, it enhances the circulation of gases like carbon dioxide and oxygen.

Answered by DanielJosephParker | 2025-07-06