A&P I Lecture Quiz 1 Practice

How does negative feedback help maintain homeostasis?

The body increases variations of the responses to stimulus

Response reduces or shuts of the original stimulus

The body ignores fluctuations or changes in response to stimulus

It does not maintain homeostasis

How does positive feedback contribute to physiological processes

By inhibiting responses to stimuli

By maintaining stability through opposing changes

By amplifying the initial stimulus for a greater response

By preventing fluctuations for homeostasis

What is homeostasis?

A condition where the body ignores internal fluctuations

The process of amplifying stimuli for a greater response

The maintenance of relatively stable internal conditions

A state of constant change in the body

Anatomical position is described as the body erect, feet slightly apart, palms facing backward with thumbs pointing toward the body

True

False

The plane that divides the body into anterior and posterior parts is called the _________.

Tissues are groups of similar ________ that have a common function

Organelles

Organs

Cells

Atoms

Which of the following is/are NOT included in the axial part of the body?

The glutes

The head

The abdomen

The arms

Which of the following types of epithelial tissue lines the interior of blood vessels?

The basement membrane is located between which of the following tissue types?

Epithelial and connective tissues

Nervous and connective tissues

Muscle and nervous tissues

Connective and muscle tissues

Which of the following is a unicellular gland associated with mucus production?

Chondrocyte

Goblet cell

Fibroblast

Plasma cell

Which of the following epithelial tissue types is best adapted for the rapid transport of materials across its membranes

Transitional

Pseudostratified ciliated columnar

Stratified cuboidal

Simple squamous

Which of the following correctly characterizes epithelial tissue?

It is vascularized.

It has loosely compacted cells.

It has a high rate of regeneration.

It exhibits nonpolarity.

Which of the following tissues lines the majority of the digestive tract, from the stomach to rectum?

Psuedostratified ciliated columnar

Simple columnar

Stratified cuboidal

Simple squamous

Transitional epithelium can be found in which body system?

Urinary

Respiratory

Nervous

Cardiovascular

Which cells secrete the ground substance of cartilage?

Osteoblasts

Fibroblasts

Hematopoietic cells

Chondroblasts

Which of the following types of epithelial tissue provides the greatest amount of protection from rubbing, wear, and tear?

Transitional

Simple squamous

Stratified squamous

Stratified columnar

Which type of muscle is unstriated, unbranded, involuntary, spindle-shaped, and found in the walls of most hollow organs?

Epithelium

Cardiac

Skeletal

Smooth

Which type of membrane transport process uses ATP as a source of energy

Osmosis

Primary active transport

Simple diffusion

Facilitated diffusion

Which of the following molecular components of the lipid bilayer of the plasma membrane possesses a charged polar phosphate "head" and uncharged nonpolar fatty acid "tails"?

Phospholipid

Cholesterol

Glycolipid

Integral protein

Which of the following is the correct sequence for the stages of mitosis

Telophase, anaphase, prophase, metaphase

Prophase, metaphase, anaphase, telophase

Metaphase, anaphase, telophase, prophase

Prophase, anaphase, metaphase, telophase

Which of the following transport mechanisms specifically involves the movement of water?

Filtration

Primary active transport

Osmosis

Secondary active transport

Which of the following statements best describes the fluid mosaic model of the plasma membrane?

A single layer of lipids surrounding a layer of proteins

A single layer of proteins surrounding a single layer of lipids

A protein bilayer sandwiching a layer of lipids

A lipid bilayer with protein molecules dispersed within it

Enzymes __________the rate of a chemical reaction by __________ the activation energy.

Increase; lowering

Decrease; lowering

Decrease; raising

Increase; raising

Match the following cell junctions to their correct functions.

Tight junctions

Prevent molecules from passing through the extracellular space between adjacent cells

Gap Junction

Important for cell communication

Desmosomes

Anchor junctions found in areas subjected to pulling forces

A&P I Lecture Quiz 1 Practice

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