Immune
What is a pathogen?
Give one example.
Anything that can harm the human body.
Virus, bacteria, fungi, etc.
Covid, flu, strep, E. coli, etc
In which part of the reproductive system does the fetus develop during pregnancy?
Uterus
Which hormone is responsible for raising blood glucose levels?
Glucagon
What sugar is the main source of energy in the human body?
GLUCOSE
The human body uses energy to make heat. Name two body systems that provides humans with the raw materials (oxygen and glucose) necessary to release this energy:
Respiratory
Circulatory
What is an antigen?
Protein on a cell membrane that serves as an name tag for the identity of that cell.
What is fertilization?
egg and sperm combine to make zygote.
What is meant by the term dynamic equilibrium?
Maintaining stable conditions (homeostasis) even while things in the body are changing
What is the name of the protein molecule that breaks down materials needed for digestion?
ENZYME
To communicate between cells, many multicellular animals use
hormones and neurotransmitters
What 2 roles does an antibody play in the immune system response?
2. attack the pathogen.
If sperm cells did not have enough ATP to swim, what important job could they not do?
Fertilization. Won't be able to make their way to the fallopian tubes to find the egg and fertilize it.
Using the TERMS “stimulus and response”, explain how the human body responds to an increase in temperature beyond the normal range.
The stimulus is the body temperature rising too much.
The body responds by making you sweat to release the extra heat and bring body temp back to homeostasis (98.6 degrees F).
Describe the lock and key method of enzyme function.
In humans, certain glands produce chemicals that are distributed by the circulatory system and influence various target organs. These glands are classified as
Endocrine glands
Explain what a vaccine is and how it stimulates the immune system.
Weakened part of the pathogen injected into the body.
Body recognizes foreign antigen, launches Immune attack, makes antibodies and gets rid of pathogen's antigens. When the body actually encounters the actual pathogen, the body already has antibodies made that will be easily able to recognize and attack the pathogen, sometimes without you even noticing that you're sick.
What role does the placenta play in reproduction?
Exchange of nutrients and waste products between mom and fetus.
Explain how the scenario of body temp rising and then being brought back down to homeostasis is an example of feedback mechanisms in the human body.
Your body gets information that the temperature is too high and it corrects the temp back to homeostasis. That's a feedback mechanism.
Provide three examples of lock and key discussed in this unit.
Receptor and neurotransmitter.
Receptor and hormone.
Enzyme and substrate.
Antigen and antibody.
Give an example of the endocrine system working with the reproductive system to maintain homeostasis.
Anything reasonable
Why is it important to give immuno-suppressive drugs to the recepient of an organ transplant?
What is meant by differentiation during the development of an embryo?
Cells take on specific roles as baby grows more cells.
Using the terms “pancreas, insulin, and glucagon”, explain how the human body uses a feedback mechanism to maintain blood sugar levels.
edr
Enzymes break down proteins into
AMINO ACIDS
Give an example of the digestive and immune systems working together.
Anything reasonable.