Cellfie
What is the function of the mitochondria?
Site of cellular respiration providing energy for the cell
What type of tissue covers the body and lines cavaties?
Epithelial
What is the main function of the nervous system?
collect, process, and respond to sensory information
What is a hypertonic solution?
lower water concentration than the cell's cytoplasm (causes water to leave the cell)
What is the role of a ligand in cell signaling?
ligand binds to receptor proteins to initiate a cellular response
Ribosomes
What is the primary function of connective tissue?
support, protection and binds other tissues together
What does the respiratory system do?
responsible for gas exchange
Define hypotonic solution
high water concentration than the cell's cytoplasm (causing water to enter the cell)
Describe the signal transduction pathway. Draw a picture!
a signal transduction pathway is a sequence of events initiated by a signal that leads to a cellular response
What role do lysosomes play in the cell?
breaking down waste materials and cellular debris
Describe the role of muscle tissue.
movement and stabilization
Describe the function of the digestive system.
breaks down food and absorbs nutrients
What happens to a cell placed in an isotonic solution?
Remains the same - concentration is the same inside and outside of the cell
What is feedback inhibition?
when the output of a process inhibits the overall process itself to maintain balance
What is the primary function of the golgi apparatus?
processes and packages proteins for secretion or use within the cell
Name the 4 types of connective tissue
connective tissue proper, cartilage, bone and blood
What is the primary function of the endocrine system?
Produce and secrete hormones for regulation
Give an example of a substance that moves via simple diffusion in our body.
Oxygen, Carbon Dioxide
What is the role of the second messenger in signaling?
amplify and distribute the initial signal received by a receptor
Describe the structure and function of the cell membrane - draw a picture!
phospholipid bilayer with embedded proteins controlling what goes in and out of the cell
What distinguishes cardiac muscle from smooth muscle?
Cardiac muscle is involuntary and striated.
What organs are included in the cardiovascular system?
heart, blood vessels, blood
Explain the process of osmosis.
diffusion of water from an area of high concentration to low concentration across a selectively permeable membrane.
Explain the importance of specificity in receptor proteins
Allow certain ligands to bind only to their corresponding receptors - ensures regulation of signaling pathways