Which of the following is not a connective tissue?
- Blood
- Adipose Tissue
- Cartilage
- Neuroglia
The Correct Option is D
Solution and Explanation
In the field of biology, the term "connective tissue" refers to a group of tissues that support, bind together, and protect various tissues and organs of the body. Let's analyze each option to determine which one is not a connective tissue:
- Blood: Blood is considered a connective tissue because it connects the body systems, providing oxygen and nutrients while removing waste.
- Adipose Tissue: This is a specialized connective tissue that stores fat and provides insulation and cushioning to the body.
- Cartilage: Cartilage is another type of connective tissue that is more rigid than adipose tissue and supports structures and joints.
- Neuroglia: Neuroglia, also known as glial cells, are not a connective tissue. Instead, they are cells that provide support and protection for neurons in the nervous system.
Thus, the option that is not a connective tissue is Neuroglia.
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Concepts Used:
The Tissue System
Epidermal Tissue System:
The epidermal tissue system forms the outer-most covering of the whole plant body and comprises epidermal cells, stomata, and the epidermal appendages – the trichomes and hairs. The epidermis is the outermost layer of the primary plant body. It is made up of elongated, compactly arranged cells, which form a continuous layer. The epidermis is usually single-layered.
Ground Tissue System:
All tissues except the epidermis and vascular bundles constitute the ground tissue. It consists of simple tissues such as parenchyma, collenchyma, and sclerenchyma. Parenchymatous cells are usually present in the cortex, pericycle, pith, and medullary rays, in the primary stems and roots. In leaves, the ground tissue consists of thin-walled chloroplast-containing cells and is called mesophyll.
Vascular Tissue System:
The vascular system consists of complex tissues, the phloem, and the xylem. The xylem and phloem together constitute vascular bundles. In dicotyledonous stems, cambium is present between phloem and xylem. Such vascular bundles because of the presence of cambium possess the ability to form secondary xylem and phloem tissues and hence are called open vascular bundles. In the monocotyledons, the vascular bundles have no cambium present in them. Hence, since they do not form secondary tissues they are referred to as closed.
Read More: Plant Tissue