Cell Stuff Flashcards
Define a cell
Cells are the basic structural, functional, and biological units of all living organisms. They are the smallest units of life and can carry out essential processes such as metabolism, energy production, and reproduction. Cells can be classified into prokaryotic (bacteria and archaea, which lack a nucleus) and eukaryotic (plants, animals, fungi, and protists, which have a nucleus and membrane-bound organelles)
What are tissues?
Groups of cells that work together to perform a specific function.
How many primary tissue types are there in the human body?
Four: epithelial, connective, muscle, and nervous tissue.
True or False: Epithelial tissue is responsible for covering body surfaces.
True.
Fill in the blank: Connective tissue primarily provides __________.
support and structure to other tissues and organs.
What type of tissue is responsible for movement?
Muscle tissue.
Which tissue type transmits nerve impulses?
Nervous tissue.
Multiple Choice: Which of the following is NOT a type of connective tissue? A) Blood B) Bone C) Skin D) Cartilage
C) Skin.
True or False: Epithelial tissue can be classified by the shape of its cells.
True.
What are the three shapes of epithelial cells?
Squamous, cuboidal, and columnar.
Fill in the blank: The primary function of nervous tissue is to __________.
receive and transmit electrical signals.
What is the main characteristic of muscle tissue?
Its ability to contract.
Multiple Choice: Which type of muscle tissue is involuntary? A) Skeletal B) Cardiac C) Smooth D) Both B and C
D) Both B and C.
True or False: Connective tissue includes tendons and ligaments.
True.
What is the role of adipose tissue?
To store fat and provide insulation.
Fill in the blank: The basic unit of nervous tissue is the __________.
neuron.
What type of epithelial tissue is found in areas subject to abrasion, such as the skin?
Stratified squamous epithelium.
Multiple Choice: Which tissue type has a matrix? A) Epithelial B) Muscle C) Nervous D) Connective
D) Connective.
True or False: Smooth muscle tissue is striated.
False.
What is the function of ciliated epithelial tissue?
To move substances across its surface.
Fill in the blank: The connective tissue that connects muscles to bones is called __________.
tendons.
What is the function of blood as a connective tissue?
To transport nutrients, gases, and waste products.
Multiple Choice: Which type of epithelial tissue is specialized for absorption? A) Transitional B) Simple columnar C) Stratified squamous D) Cuboidal
B) Simple columnar.
True or False: Cartilage is a type of epithelial tissue.
False.
What is the primary function of transitional epithelium?
To allow stretching and recoiling.
Fill in the blank: The type of connective tissue that provides flexible support is __________.
cartilage.
What is the primary role of skeletal muscle tissue?
To facilitate voluntary movement.
What is an organ?
An organ is a group of tissues that work together to perform a specific function in an organism.
True or False: Organs are only found in animals.
False: Organs are found in both animals and plants.
Fill in the blank: The heart is an example of a ______.
muscular organ.
What are the four basic types of tissues that make up organs?
Epithelial, connective, muscle, and nervous tissues.
Multiple Choice: Which of the following is NOT an organ? A) Liver B) Heart C) Blood D) Kidney
C) Blood
What is the primary function of the lungs?
To facilitate gas exchange, bringing oxygen into the body and removing carbon dioxide.
True or False: Organs can function independently of one another.
False: Organs often work together as part of organ systems.
Fill in the blank: The ______ is the largest organ in the human body.
skin.
What is the role of the stomach in the digestive system?
To break down food using acids and enzymes.
Multiple Choice: Which organ is responsible for filtering blood? A) Brain B) Liver C) Lungs D) Stomach
B) Liver
What is the function of the kidneys?
To filter waste products from the blood and produce urine.
True or False: The brain is considered an organ.
True.
Fill in the blank: The _______ system is made up of organs that work together to transport blood.
circulatory.
What are accessory organs?
Organs that assist in the functioning of other organs, such as the pancreas in digestion.
Multiple Choice: Which organ is primarily responsible for hormone production? A) Pancreas B) Spleen C) Bladder D) Intestines
A) Pancreas
What is the function of the spleen?
To filter blood and help fight infections.
True or False: Organs are made up of multiple types of cells.
True.
Fill in the blank: The _______ organ is essential for the respiratory system.
lung.
What is the primary function of the intestines?
To absorb nutrients and water from food.
Multiple Choice: Which organ is involved in detoxifying chemicals? A) Liver B) Heart C) Brain D) Skin
A) Liver
What role do sensory organs play?
They allow organisms to perceive and respond to their environment.
True or False: The gallbladder stores bile produced by the liver.
True.
Fill in the blank: The _______ is a muscular organ that pumps blood throughout the body.
heart.
What is the function of the reproductive organs?
To produce gametes and hormones necessary for reproduction.
Multiple Choice: Which organ is primarily responsible for vision? A) Ear B) Eye C) Nose D) Tongue
B) Eye
What is the primary function of the skin as an organ?
To protect the body from external damage and regulate temperature.
What is a body system?
A body system is a group of organs and tissues that work together to perform a specific function in the body.
How many major body systems are there in the human body?
There are 11 major body systems in the human body.
True or False: The circulatory system is responsible for transporting blood and nutrients throughout the body.
True
Fill in the blank: The ______ system is responsible for protecting the body from infection and disease.
immune
What is homeostasis?
Homeostasis is the process by which the body maintains a stable internal environment despite changes in external conditions.
Name one example of a body system.
Respiratory system
Multiple Choice: Which system is primarily responsible for hormone production? A) Circulatory B) Endocrine C) Nervous D) Digestive
B) Endocrine
What role does the nervous system play in homeostasis?
The nervous system detects changes in the environment and sends signals to other body systems to maintain balance.
True or False: The digestive system is responsible for breaking down food and absorbing nutrients.
True
Fill in the blank: The ______ system helps regulate temperature and remove waste through perspiration.
integumentary
What is the function of the skeletal system?
The skeletal system provides structure, support, and protection for the body, as well as facilitating movement.
Multiple Choice: Which body system includes the heart and blood vessels? A) Respiratory B) Circulatory C) Muscular D) Nervous
B) Circulatory
How does the endocrine system contribute to homeostasis?
The endocrine system releases hormones that regulate various bodily functions, helping to maintain balance.
True or False: The muscular system is only responsible for voluntary movements.
False
What is the primary function of the respiratory system?
The respiratory system is responsible for exchanging oxygen and carbon dioxide between the body and the environment.
Fill in the blank: The ______ system is involved in the production of blood cells.
skeletal
Multiple Choice: Which system is responsible for the excretion of waste products? A) Digestive B) Excretory C) Circulatory D) Nervous
B) Excretory
What is the role of the lymphatic system?
The lymphatic system helps defend the body against infection and maintains fluid balance.
True or False: Homeostasis only involves temperature regulation.
False
What is feedback inhibition?
Feedback inhibition is a regulatory mechanism in which the output of a process inhibits its own production, helping to maintain homeostasis.
Fill in the blank: The ______ system coordinates the body’s responses to internal and external stimuli.
nervous
Name one factor that can disrupt homeostasis.
Stress
Multiple Choice: Which system includes organs such as the kidneys and bladder? A) Digestive B) Endocrine C) Excretory D) Muscular
C) Excretory
What is the primary role of the integumentary system?
The integumentary system protects the body, regulates temperature, and provides sensory information.
True or False: All body systems work independently of one another.
False
What are the four main types of tissues in the human body?
Epithelial, connective, muscle, and nervous tissue.
True or False: The circulatory system is responsible for transporting oxygen and nutrients throughout the body.
True.
Fill in the blank: The _____ system is responsible for producing hormones that regulate metabolism, growth, and development.
endocrine
What is the primary function of the respiratory system?
To facilitate the exchange of oxygen and carbon dioxide.
Multiple Choice: Which system includes the brain and spinal cord? A) Circulatory B) Nervous C) Digestive D) Muscular
B) Nervous
What is the role of the digestive system?
To break down food into nutrients that can be absorbed into the body.
True or False: The skeletal system is primarily responsible for producing red blood cells.
True.
Fill in the blank: The _____ system helps protect the body from disease and infection.
immune
What is the largest organ in the human body?
The skin.
Multiple Choice: Which system is responsible for movement and posture? A) Endocrine B) Muscular C) Nervous D) Integumentary
B) Muscular
What is homeostasis?
The maintenance of a stable internal environment in the body.
True or False: The urinary system is responsible for filtering blood and producing urine.
True.
Fill in the blank: The _____ system is responsible for reproduction.
reproductive
What is the function of the lymphatic system?
To transport lymph and help defend the body against infections.
Multiple Choice: Which body system includes the heart and blood vessels? A) Endocrine B) Circulatory C) Respiratory D) Digestive
B) Circulatory
How many major body systems are there in the human body?
There are 11 major body systems in the human body.
True or False: The circulatory system is responsible for transporting blood throughout the body.
True
Fill in the blank: The _____ system is responsible for producing hormones that regulate various body functions.
endocrine
Which body system is primarily responsible for the exchange of gases?
The respiratory system.
Multiple Choice: Which of the following is NOT one of the major body systems? A) Nervous B) Digestive C) Reproductive D) Excretory E) Skeletal F) Cardiovascular G) Muscular H) Immune I) Integumentary J) Endocrine K) Lymphatic
All listed are major body systems.
