Exam (elaborations)
BIO 201- Midterm Exam Latest Updated 2024 With Complete Solutions
- Course
- Institution
BIO 201- Midterm Exam Latest Updated 2024 With Complete Solutions
[Show more]
Content preview
BIO 201- Midterm Exam Latest Updated 2024With Complete Solutions
Human life depends on what 5 environmental factors? - ANSWER-1) water
2) food
3) oxygen
4) heat
5) pressure
1) Water - ANSWER--most abundant substance in body
- environment for metabolic processes
-required for transport of substance
-regulation of body temperature
2) Food - ANSWER--provides necessary nutrients
-supplies energy
-supplies raw materials for building living tissue
3) Oxygen (gas) - ANSWER--one fifth of air
-used to release energy from nutrients
4) Heat - ANSWER--heat is a form of energy in out environment
- helps maintain body temperature
- partly controls rate of metabolic reactions
5) Pressure - ANSWER--application of force on an object
- atmospheric pressure// important for breathing
-hydrostatic pressure// keeps blood flowing
anatomy - ANSWER-study of the structure/morphology of the human body and its parts
physiology - ANSWER-study of the functions of the human body and its parts
List the levels of organization from simplest to most complex. - ANSWER-subatomic
particles
atom
molecule
macro-molecule
organelle
cell
tissue
organ
,organ system
organism
cell - ANSWER--composed of organelles
-the basic units of structure and function of the body
tissue - ANSWER-layer or mass of cells with specific function
organ - ANSWER-group of different tissues with a function
system/ organ system - ANSWER-group of organs with common function
homeostasis - ANSWER-maintenance of a stable internal environment
metabolism - ANSWER-all of the chemical reactions in an organism that support life
positive feedback loop - ANSWER--homeostatic mechanism
-response enhances or exaggerates original stimulus
-uncommon in body
-short lived
-examples are contractions in labor by oxytocin and platelet plug formation+ blood
clotting
negative feedback loop - ANSWER--homeostatic mechanism
-most feedbacks in the body
-response reduces or shuts off original stimulus/ goes in opposite direction
-examples are regulation of body temperature, regulation of blood glucose by insulin
Identify the parts of a basic homeostatic mechanism. - ANSWER-1) receptor
2) control center
3) effector
1) receptor - ANSWER-detects and provides information about the stimuli
2) control center - ANSWER-decision- maker that maintains the set point
3) effector - ANSWER-muscle or gland that responds to the control center and causes
the necessary change in the internal enviroment
Organ systems in the human body
-basic functions and major organs - ANSWER-integumentary
skeletal
muscular
nervous
endocrine
, cardiovascular
lymphatic
digestive respiratory
reproductive
urinary
integumentary system - ANSWER-the skin and its accessory structures such as hair
and nails
-protects deeper tissue from injury
-protection, body temperature regulation, sensory reception, and production of vitamin D
skeletal system - ANSWER-bones and ligaments
-protects, supports, and provides a framework the muscles use to cause movement
-attachment sites, storage of inorganic salts, production of blood cells, and movement
muscular system - ANSWER-skeletal muscles and tendons
-allows movement and produce heat (main source)
- maintenance of posture
nervous system - ANSWER-brain, spinal cord, nerves
-fast acting control system, responds to changes
-integration and coordination of organ function through nerve impulses or hormones
endrocrine system - ANSWER-pituitary gland, thyroid gland, adrenal gland, pancreas,
ovaries, testes, and thymus
-glands secrete hormones that regulate processes by cells
-integration and coordination of organ function through nerve impulses or hormones
cardiovascular system - ANSWER-heart, arteries, veins, capillaries, blood
-blood transport stuff around the body
-transportation of gases, nutrients, blood cells, and waste
lymphatic system - ANSWER-lymphatic vessels, lymph nodes, thymus, spleen
-pick up leaked fluid from blood vessels and returns it to blood
-transportation of fluids, lymphocyte production, and body defense
digestive system - ANSWER-mouth, tongue, teeth, salivary glands, pharynx,
esophagus, stomach, liver, gallbladder, pancreas, small intestine, and large intestine
-breaks down food and absorbs nutrients
-receives food, excretes waste
respiratory system - ANSWER-nasal cavity, pharynx, larynx, trachea, bronchi, lungs
-keeps blood constantly supplied
-exchange of gases
reproductive system - ANSWER-male- scrotum, testes, penis, urethra
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller PDFSSELLER. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $20.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now