BIO 201- Exam 1- Ch. 1-6- Rio Salado Latest Update 2025-2026 Exam 135 Questions with 100% Verified Correct Answers Guaranteed A+
1. Apical surfaces - CORRECT ANSWER: some are smooth and slick, and others
contain microvilli which are fingerlike extensions of the plasma membrane. They line the kidney tubules and intestines and give a fuzzy look called a brush border. There is also cilia, which propels substances along their free surface (ex. trachea).
- Basal surfaces - CORRECT ANSWER: Basal lamina lies adjacent to the basal layer.
Basal lamina acts as a selective filter by choosing which molecules from underlying connective tissue get to come up to the epithelia. It also acts as a place where epithelia cells come to repair a wound.
- specialized contacts - CORRECT ANSWER: epithelial cells fit close together with
tight junctions and desmosomes to create a protection from apical surfaces diffusing into basal surfaces. Tight junctions keep the polarity stable.
3 Characteristics of Connective Tissue - CORRECT ANSWER: 1. Common origin
- Degrees of vascularity
- Extracellular matrix
3 shapes of epithelial cells - CORRECT ANSWER: squamous, cuboidal and columnar
3. Supported by connective tissue - CORRECT ANSWER: Just deep to the basal
lamina, is the reticular lamina. This is a layer of extracellular material containing network of collagen fibers that belongs to connective tissue. The basal and reticular lamina form to create the basement membrane which helps keep the epithelial from tearing or stretching outside of epithelial boundaries.
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- main classes of connective tissue - CORRECT ANSWER: 1. Connective tissue proper
- Cartilage
- Bone tissue
- Blood
(fat, and fibrous tissue of ligaments)
- Avascular but innervated - CORRECT ANSWER: No blood vessels, but the epithelial
tissue is innervated which means it is supplied by nerve fibers).
5. Regeneration - CORRECT ANSWER: Highest generation capacity
Adipose - CORRECT ANSWER: "Fat" tissue, matrix is sparse, closely packed adipocytes (fat cells), and has nucleus pushed to the side by large fat droplet.
Adipose Function and location - CORRECT ANSWER: provides reserve food fuel,
insulates against heat loss and supports and protects organs. Located under skin, around kidneys and eyeballs, within the abdomen and in breasts.
Anatomical position - CORRECT ANSWER: standing human facing forward, with the
feet together and the arms relaxed at the sides, with the palms out and the thumbs facing away from the body.
Anatomy - CORRECT ANSWER: Study of the structure of the human body
Appendicular - CORRECT ANSWER: Limbs (appendages) attached to body's axis
Areolar Function - CORRECT ANSWER: Wraps and cushions organs, macrophages
phagocytize bacteria, plays important role in inflammation, and holds and conveys tissue fluid. Surrounds capillaries.
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Areolar- Appearance and contains - CORRECT ANSWER: Gel like- contains all three
fiber types, cells: fibroblasts, macrophages, mast cells and some white blood cells.
Axial - CORRECT ANSWER: Head, neck and trunk which make up body's axis
Blood - CORRECT ANSWER: Red and WBC in fluid matrix (plasma), Transport of
respiratory gases, wastes and other substances. Contained within blood vessels.
Bone (Osseous Tissue) - CORRECT ANSWER: Very well vascularized, osteocytes lie in the lacunae (gap in the matrix) and it is hard and calcified. Supports and protects.Stores calcium and other minerals, as well as fats. Marrow is site of blood cell formation (hematopoiesis)
Cardiovascular system - CORRECT ANSWER: pumps blood; blood vessels transport
blood which contains carbon dioxide, nutrients, waste, etc.
Cartilage- 3 types - CORRECT ANSWER: Hyaline, Elastic and Fibrocartilage
Cells structure and functions (in a nutshell) - CORRECT ANSWER: The main part of the cell is called the NUCLEUS .where the action happens. Basically, it's your most important part of the cell structure. The red structures around the cell roaming freely are the MITOCHONDRIA. These are the structures that regulate the strength of a cell. The white, bone-like structures around the nucleus are the ECTOSKELETONS. They are the "bones" of the cell, acting like real bones to support the cell.
Cellular - CORRECT ANSWER: Cells are made of molecules
Characteristics of epithelial tissue ( 5) - CORRECT ANSWER: 1.Polarity- there is an apical surface which is an upper free surface exposed to body exterior or the cavity of an internal organ, and a lower attached basal surface. Apical-basal polarity- they differ in structure and function and are maintained by cytoskeleton of epithelia cells.
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