The energy required for organisms to respond to the environment comes from...
Food
Circulation is another way for materials in a cell to be what?
Transported
All living things are made up of these
Cells
Which cell structure do nutrients pass through to enter a cell?
Cell Membrane
Which structures are found in every living cell?
Cytoplasm and cell membrane
Many organisms produce harmful substances. Through what process are they eliminated?
Excretion
A catepillar turning into a butterfly is an example of what life Process?
Development
Which invention led to the cell theory?
Light microscope.
Which cell structure(s) is/are found in plant cells, but not in animal cells?
Cell wall and chloroplasts
What process do ribosomes go through?
Protein Synthesis
TRUE OR FALSE:
All living organisms carry out some form of respiration.
TRUE
What is true about each of these organisms?
They all contain one cell
all living things
According to the cell theory, all cells come from where?
Preexisting cells
What is the site of protein synthesis in plant cells?
Ribosomes
Which organelles must be in a cell of a leaf for photosynthesis to occur?
Chloroplasts
The sum of all the chemical processes in the human body
Metabolism
Viruses are exceptions to the cell theory, but they have some characteristics of living things. What is one of these characteristics?
They contain genetic material or DNA
Living things contain units of structure and function that arise from preexisting units.
This statement describes what?
Which organelle contributes the energy for muscles in an earthworm?
Mitochondria
Which structures are used by a paramecium for maintaining water balance?
Vacuole
Both a deer and a tree react to changes in their external surroundings, helping them to maintain a constant internal environment. This statement describes what process?
Homeostasis
The creation of DNA and genetic information is what type of life Process?
Synthesis
What is the proper order from least to greatest the levels of organization?
cells --> tissue --> organs --> organ system --> organism
The structures found in a living cell can be compared to the parts of a factory that produces cars. Which part of the factory is most similar to the nucleus of a living cell?
A computer room or control center
Which organelle contains the enzymes needed to synthesize ATP in the presence of oxygen?
Mitochondria