OMTEX AD 2

HSC 12th Biology Important Diagram for Board Exam 2026

Structure of Chloroplast (Ultrastructure)

Structure of Chloroplast (Ultrastructure).webp

Reflex Arc Diagram

Reflex Arc Diagram.webp

Explain internal structure of kidney with the help of suitable diagram

Explain internal structure of kidney with the help of suitable diagram..webp

Germinating pollen grain with a pollen tube containing two male gametes

A diagram should be drawn showing a germinating pollen grain with a pollen tube containing two male gametes, a tube nucleus, and cytoplasm..webp

Diagram A: Expiration vs Diagram B: Inspiration

Diagram A- Expiration (Ribs in, Diaphragm domed Diagram B- Inspiration (Ribs out, Diaphragm flat).webp

Planaria showing Eye spots, Ganglia, and Ladder-like nerve cords

Diagram- Planaria showing Eye spots, Ganglia, and Ladder-like nerve cords.webp

Upright Pyramid showing Producers → Herbivores → Carnivores

Upright Pyramid showing Producers → Herbivores → Carnivores with decreasing energy bars.webp

Identify the chromosomal aberrations

Identify the chromosomal aberrations.webp

Developmental flow chart in plant (Colorful)

the developmental flow chart in plant from seed germination to death of plant Colorful.webp

Developmental flow chart in plant (Simple)

the developmental flow chart in plant from seed germination to death of plant Simple.webp

Diagrammatic representation of Decomposition Cycle

diagrammatic representation of 'decomposition cycle.'.webp

Diagram of Heart showing SA Node, AV Node, and Bundle of His

Diagram of Heart showing SA Node, Internodal pathways, AV Node, Bundle of His, Bundle Branches, Purkinje Fibers.webp

Draw a neat and labelled diagram to show mesogamy

Draw a neat and labelled diagram to show mesogamy..webp

T.S. of Testis Diagram

T.S. of Testis Diagram.webp

Anatropous ovule (Inverted ovule)

Anatropous ovule (Inverted ovule)..webp

Mechanism of Hormone Action (Membrane Bound Receptor)

Diagram of Mechanism of Hormone Action (Membrane Bound Receptor).webp

Labelled diagram describing the structure of human sperm

With the help of a neat labelled diagram, describe the structure of human sperm..webp

Labelled diagram showing structure of stomatal apparatus in dicotyledons

labelled diagram showing structure of stomatal apparatus in dicotyledons.webp

Diagram of Graafian Follicle

Diagram of Graafian Follicle.webp

Diagram of Graafian Follicle (Variation)

Diagram of Graafian Follicle .webp

Graph Image showing Species Richness vs Area

Graph Image showing Species Richness vs Area.webp

Functional Areas of Cerebrum

Functional Areas of Cerebrum.webp

Sketch and label the V.S. of anatropous ovule

Sketch and label the V.S. of anatropous ovule.webp

Sketch and label the V.S. of anatropous ovule (Colorful)

Sketch and label the V.S. of anatropous ovule Colorful.webp

HSK-pathway-c4-cycle

HSK-pathway-c4-cycle.webp

Diagram of Hairpin model of tRNA

Diagram of Hairpin model of tRNA.webp

Malpighian Body

Malpighian Body.webp

Redraw, complete and label the diagram given below, which relates to reflex arc

Redraw, complete and label the diagram given below, which relates to reflex arc

Diagram: Cross section of spinal cord with reflex arc pathway

Redraw, complete and label the diagram given below, which relates to reflex arc

Diagram: Process of fertilization in human with the help of four sequential diagrams

Redraw, complete and label the diagram given below, which relates to reflex arc

Diagram: Sketch of the internal structure of human heart

Redraw, complete and label the diagram given below, which relates to reflex arc

Diagram: Sketch and label angiospermic embryo sac.

Redraw, complete and label the diagram given below, which relates to reflex arc

Diagram: The process of transcription takes place on a part of DNA molecule known as transcription unit

The process of transcription takes place on a part of DNA molecule known as transcription unit

Diagram: diagram of ovule most commonly seen in angiosperms

diagram of ovule most commonly seen in angiosperms

Diagram: Neat labelled diagram of L. S. of the human brain. - Biology

Neat labelled diagram of L. S. of the human brain. - Biology

Diagram: diagram of brain to show ventricles in coronal plane.

diagram of brain to show ventricles in coronal plane.