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100

This organelle is the cell’s protein factory, found free-floating or attached to the rough ER.

What is the ribosome? 

100

This classification of tissue is characterized by a single layer of cells that are taller than they are wide.

What is simple columnar epithelium? 

100

This cell type produces fibers and ground substance in connective tissue.

What is a fibroblast?

100

This bone cell type is responsible for breaking down bone matrix.

What is an osteoclast?

100

This is the first type of bone formed in the developing embryo.

What is woven bone?

200

This lipid bilayer structure regulates what enters and exits the cell.

What is the plasma membrane? 

200

The apical surface of pseudostratified columnar epithelium often features these hair-like projections.

What is cilia?

200

These are the three main types of connective tissue fibers.

What are collagen, elastic, and reticular fibers?

200

This cartilage type is found at the ends of long bones and in the nose.

What is hyaline cartilage? 

200

These are the three components of connective tissue.

Cells, fibers, and ground substance

300

This type of microscopy produces a 3D rendering of the cell's surface.

What is scanning electron microscopy?

300

This type of gland releases its product via exocytosis without damaging the secreting cell.

What is a merocrine gland?

300

This connective tissue type stores energy and insulates the body.

What is adipose tissue?

300

This hormone stimulates osteoclast activity and increases blood calcium levels.

What is parathyroid hormone?

300

This genetic material is tightly packed and not readily available for transcription.

What is heterochromatin?

400

This stain is commonly used to highlight nuclei in histological slides.

What is hematoxylin?

400

Epithelial tissue is avascular but receives nutrients through this process from this tissue type.

What is diffusion from underlying connective tissue?

400

This resident immune cell of connective tissue plays a key role in allergic reactions by releasing histamine.

What is a mast cell?

400

This process replaces cartilage with bone during fetal development.

What is endochondral ossification?

400

Microvilli are comprised of this cytoskeletal element.

What are microfilaments (actin filaments)?

500

This cellular process involves the engulfing of particles or fluids and is commonly observed in macrophages.

What is endocytosis (or phagocytosis/pinocytosis depending on context)?

500

This identification of epithelium is characterized by a single layer of flattened cells found lining a blood vessel.

What is endothelium?

500

This cell is a lymphocyte derivative that can be identified by its characteristic clock-faced nucleus (notable segments of heterochromatin) and poorly staining Golgi region.

What is a plasma cell? 

500

These are the concentric rings of bone matrix surrounding a central canal in compact bone.

What are lamellae (in an osteon)? 

500

This tissue classification is characterized by several layers of cells, with dome-shaped cells in the most apical layer.

What is transitional epithelium?

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