Characteristics of Life
Gas regulation, thermoregulation, and osmoregulation are examples of which characteristic of life?
Homeostasis
List 1 of the 3 main parts of Cell Theory.
1. All living things are composed of one or more cells
2. The cell is the structural and functional unit of life
3. New cells arise from existing cells
This structure makes proteins using instructions that come from within the nucleus.
Ribosome
This organelle is only found within animal cells. It contains digestive enzymes, and breaks down materials inside the cell.
Lysosome
This is the highest level of organization, extending 8 km upwards, and 11km down into the Earth.
Biosphere
Which characteristic of life involves a measurable change in size, height, width and mass, AND a change in life cycle or specialization of cells?
Growth & Development
These 4 structures are found within ALL cells.
Ribosome, Genetic Material, Cell Membrane, Cytoplasm
Found only in plant cells, this structure surrounds the outside of the cell. It serves the function of providing strength, rigidity, and protection for the cell.
Cell Wall
This is found within the Nucleus, and is responsible for producing ribosomes in the cell.
Which level of organization is composed of many organisms of the same species, living in one area?
Population
Give the full definition of the following characteristic:
Cells & Organization
Cells are the basic structural and functional unit of life. Organelles work together to help the cell function
Comparing their shape to rooms in a monastery, who observed cork cells under a compound microscope?
Robert Hooke
Composed of microfilaments, microtubules, and intermediate filaments; what is the name for the structural network that helps the cell maintain its shape?
Cytoskeleton
This organelle can be found within both plant and animal cells, and converts chemical energy in the form glucose into chemical energy in the form of ATP.
Mitochondrion
Which level of organization includes BOTH Biotic and Abiotic factors?
Ecosystem
The characteristic, "Evolves", involves a *change in an organism due to natural selection occurring over a long period of time. What type of change is this?
Genetic Change
Theodor Schwann was one of the co-founders of Cell Theory. What part of Cell Theory did he contribute regarding animal cells?
All animals are made up of cells. The cell is the basic unit of animal structure.
The membrane of a cell is often referred to as a "Fluid Mosaic". Give the name of one of the many individual components of the Cell Membrane.
Phospholipid, Protein, Cholesterol, Polysaccharide/Carbohydrate Chain
This organelle is found within both plants and animals. It appears as a collection of folded membranes. The function of this organelle is the sorting and packaging of proteins for secretion from the cell.
Golgi
Our intestines are Organs that are responsible for absorbing nutrients from digested food and delivering it into our bloodstream. What level of organization makes up an Organ? (What level is lower than 'Organ')
Tissue
Even though they have at least 2 characteristics of life, Viruses are classified as nonliving. Name one characteristic of life that Viruses do possess.
DNA/Genetic Material, Evolves
Debatable:
Reproduces* but not on their own
Antonie Van Leeuwenhoek is remembered as the "Father of Microbiology", from his detailed observations of different "Animalcules". Many of the organisms he viewed did not contain a Nucleus, what type of organisms were these?
Prokaryotic
Also acceptable:
Bacteria, Protozoans
Made up of protein filaments, this structure can be found in BOTH prokaryotes and eukaryotes. It helps the cell in locomotion, using energy to beat rapidly.
Flagella/Flagellum
These 3 organelles can be found in plant cells, but NOT in animal cells.
Chloroplast, Chromoplast, Leucoplast
If we observe a a population of blue tang fish living among a population of clownfish in water, what level of organization is this?
Ecosystem