Biology Histology Basics
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Questions and Answers

What is the primary function of mitochondria?

  • Transport of materials
  • ATP production (correct)
  • Synthesis of proteins
  • Cell division

Which cell organelle is involved in the modification and packaging of proteins?

  • Golgi apparatus (correct)
  • Endoplasmic reticulum
  • Ribosomes
  • Lysosomes

Which type of epithelium is specialized for absorption and secretion, commonly found in glands?

  • Stratified squamous epithelium
  • Transitional epithelium
  • Cuboidal epithelium (correct)
  • Simple squamous epithelium

What process describes the engulfing of particles by a cell?

<p>Phagocytosis (C)</p> Signup and view all the answers

What structure within the cell is responsible for synthesizing ribosomes?

<p>Nucleolus (C)</p> Signup and view all the answers

During which phase of cell division does the nuclear membrane start to break down?

<p>Prophase (A)</p> Signup and view all the answers

Which layer of an embryo is primarily responsible for forming the muscles, bones, and circulatory system?

<p>Mesoderm (D)</p> Signup and view all the answers

What is the role of smooth endoplasmic reticulum in a cell?

<p>Detoxification (D)</p> Signup and view all the answers

What type of tissue forms boundary layers in the body?

<p>Simple epithelium (A)</p> Signup and view all the answers

Which cells are responsible for engulfing and digesting debris and pathogens?

<p>Macrophages (C)</p> Signup and view all the answers

What is the primary function of the Golgi apparatus in a cell?

<p>Modify and package proteins (C)</p> Signup and view all the answers

Which type of epithelium is characterized by multiple layers of cells?

<p>Stratified squamous epithelium (C)</p> Signup and view all the answers

What is the main component of the zona pellucida?

<p>Proteins or glycoproteins (B)</p> Signup and view all the answers

What is the primary function of microvilli in epithelial cells?

<p>Increase surface area for absorption (D)</p> Signup and view all the answers

Which structure is primarily responsible for synthesizing ATP in cells?

<p>Mitochondrion (D)</p> Signup and view all the answers

What type of connective tissue contains a gel-like matrix?

<p>Loose connective tissue (B)</p> Signup and view all the answers

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Flashcards

Dehydration

The process of removing water from a specimen, often using alcohol or other dehydrating agents, to prepare it for embedding in paraffin wax for sectioning.

The cell

The basic unit of life, characterized by a membrane-bound nucleus containing DNA.

Histology

The study of the microscopic structure of tissues, using techniques like staining and microscopy.

Mitochondria

A specialized organelle responsible for energy production in the cell.

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Endoplasmic reticulum

A network of interconnected membranes within the cytoplasm, involved in protein synthesis and lipid metabolism.

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Golgi apparatus

A membrane-bound organelle involved in packaging and modifying proteins and lipids.

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Endocytosis

The process by which cells take in substances from their surroundings, often through the formation of vesicles.

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Interphase

The phase of the cell cycle during which the cell grows and replicates its DNA, preparing for division.

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Simple columnar epithelium

A type of epithelium characterized by a single layer of cells that are tall and columnar in shape.

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Dense regular connective tissue

A type of connective tissue composed of cells called fibroblasts that produce collagen fibers.

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Mast cell

A type of cell that is involved in the immune response by secreting histamine and other chemicals.

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Compound alveolar gland

A type of gland that has a branched duct system and secretory units that are shaped like tiny sacs.

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Oogenesis

The process of egg cell development in the ovary.

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Cell

The functional unit of a multicellular organism, typically characterized by a membrane-bound nucleus and other specialized organelles.

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Simple microscope

A type of microscope that uses a single lens to magnify an object.

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Compound microscope

A type of microscope that uses two or more lenses to magnify an object.

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Study Notes

Tissue Preparation for Microscopy

  • Dehydration is the procedure immediately preceding clearing a specimen with an organic solvent in tissue preparation for light microscopy.

Basic Living Unit

  • The cell is the basic living unit of all plants and animals.

Study of Tissues

  • Histology is the study of tissues.

Mitochondria's Vital Product

  • ATP (Adenosine Triphosphate) is the vital product of mitochondria.

Microscope Structures

  • The body tube connects the eyepiece to the objective lens.
  • An electron microscope does not depend on visible light.
  • Sectioning is the step after tissue is embedded in paraffin.
  • Hematoxylin stains structures blue or purple.

Organelles and Cellular Structures

  • Ribosomes
  • Lysosomes
  • Golgi apparatus
  • Cristae (folds on the inner mitochondrial membrane)
  • Mitochondria (powerhouse of the cell)
  • Endoplasmic reticulum (not an inclusion)
  • Smooth endoplasmic reticulum (involved in lipid metabolism)
  • Cytoplasm (fluid inside the cell)
  • Plasma membrane
  • Endocytosis
  • Rough endoplasmic reticulum (produces protein for export)
  • Nucleolus (where ribosomes are assembled)
  • Phagocytosis (transport of solid particles)
  • Peptidoglycan (not part of the plasma membrane)
  • Peroxisomes (contain detoxifying enzymes)
  • Glycocalyx (polysaccharide on outer surface of cell membranes)
  • Ribosomes (site of protein synthesis)
  • Cytoskeleton
  • Microtubules
  • Nucleus (where ribosomal subunits are formed)

Additional Cellular Processes and Structures

  • Telophase (last phase of mitosis)
  • Eukaryotes (organisms with nuclei surrounded by nuclear membranes)
  • Rough endoplasmic reticulum and smooth endoplasmic reticulum (most developed in liver cells)
  • Lysosomes (contain digestive enzymes)

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Histology Answers (PDF)

Description

This quiz covers fundamental concepts of histology, including tissue preparation techniques and cellular structures. Explore essential topics like the cellular unit, mitochondria functions, and microscopy equipment. Perfect for students looking to reinforce their understanding of biological tissues.

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