Characteristics of Life
How many Characteristics of Life must something have to be considered living?
ALL 8
Cell wall
Chloroplast
What organelle(s) work together for cell structure?
Cell membrane
Cell wall
Give an example of an organ and name the system it belongs to
Ex: Heart; cardiovascular/circulatory system
Brain; nervous system
What are collections of tissues grouped together performing a common function called?
Organs
It grows and develops, it responds to a stimulus (shine light, expose to heat, etc.), it reproduces, you could say any of the 8 characteristics of life.
MOVEMENT AND BREATHING ARE NOT CHARACTERISTICS OF LIFE!!!
What are the two functions of the cell membrane?
1. To control what enters and leaves the cell
2. Separates the inside of the cell from the outside/keeps all the organelles in the cell.
Which organelle(s) are responsible for energy production?
Mitochondria
Chloroplast
The muscular and skeletal systems work together to help the body with movement. Muscle cells have lots of mitochondria because they need a lot of energy
List the levels of organization from smallest to largest
cell, tissue, organ, organ system, organism
Explain the difference between living and nonliving.
Nonliving: Something that has never had the characteristics of life
Animal: 9
Nucleus, cell membrane, mitochondria, lysosome, vacuole, ribosomes, ER, golgi body, cytoplasm, cell wall, chloroplast
Which organelles work together to allow waste to exit the cell? What does each of the organelles do?
Nucleus: gives instructions
Lysosome: breaks down the waste
Cytoplasm: allows waste to travel through the cell
Cell membrane: allows the waste to leave the cell
What would happen to your cells if your heart stopped beating?
The blood with the oxygen and nutrients would not be delivered to your cells, which they need to survive.
Where do photosynthesis and cellular respiration occur? Name the organelles involved in these processes.
Photosynthesis: Chloroplast (ONLY DONE BY PLANTS) Cell membrane, Nucleus, Chloroplast
Cellular Respiration: Mitochondria (IN BOTH PLANTS AND ANIMALS) Nucleus, Mitochondria
What is homeostasis? How does this relate to cell function?
Homeostasis is the ability to maintain a stable internal environment.
Cells and body systems must perform their functions properly or the organism will not be able to maintain homeostasis.
What is the function of a vacuole? How are they different in plant v. animal cells?
The function of the vacuole is for storage. In plant cells there is one large vacuole and in animal cells there are many smaller vacuoles.
Your cell needs to make protein to help your body do certain functions. How do the organelles in your cells work together to make and transport these proteins?
Nucleus: gives instructions to begin making protein
Ribosomes: make the proteins
Golgi: Packages the proteins
ER: transports the proteins
How do the Respiratory, Digestive and Cardiovascular systems work together in the body?
The digestive system breaks down the food. The respiratory system takes in the oxygen and the cardiovascular system delivers the oxygen and nutrients to your cells.
What is the goal of Photosynthesis? Name the products and reactants.
Carbon Dioxide + Water + Sunlight --> Glucose + Oxygen
What is the acronym for the characteristics of life? What does each letter stand for?
DOGRACER
DNA, Organized to Maintain Homeostasis, Response to Stimulus, Adaptation, Cells, Energy/Metabolism, Reproduce
What is the job of the nucleus? (Name two)
1. Controls the cell/gives instructions
2. Holds the genetic information for reproduction (DNA)
You are running as fast as you can to catch the bus in the morning so you do not miss it. Your body needs to convert sugar into energy. When it does this, it produces carbon dioxide, which is toxic to your cells. How do the organelles in your cells work together to get rid of this toxic waste product?
Cytoplasm allows the carbon dioxide to travel to the cell membrane where it is released.
What is the function of the immune system? What is the main organ of the immune system? How are the immune and cardiovascular systems related?
To defend the body and fight against infection. White blood cells are the defenders of the body and are carried by the cardiovascular system around the body.
To break down glucose and create energy in the form of ATP.
Glucose + Oxygen --> Carbon Dioxide + Water + ATP (energy)