Skip to content
Login Register

#tissue organization

3 public questions tagged with this topic.

Animal Classification

Diploblastic animals possess

Diploblastic animals possess only two primary germ layers formed during gastrulation: outer ectoderm giving rise to epidermis and nervous elements, and inner endoderm lining gastrodermis or gastrovascular cavity, with intervening acellular or sparsely cellular mesoglea not true mesoderm producing muscle. Cnidaria and Ctenophora exemplify this architecture, where epitheliomuscular cells derived from ectoderm and endoderm perform contraction, lacking coelom and mesodermally derived organs. Triploblasts add third layer mesoderm generating musculature, circulatory and skeletal tissues enabling complex organogenesis. This concept holds high importance for NEET, CBSE board, CUET and competitive examinations focusing on comparative morphology and evolutionary

Ref: NCERT Class 11 Chapter 4 Diploblastic Condition; Campbell Biology 12th ed. Chapter 32 Germ Layers

View Details
Cancer

Increase in cell number with normal organization is termed

Hyperplasia, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

View Details
Cell Communication and Cell Adhesion

E-cadherin is typically expressed in

Epithelial cells, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

View Details