Old Stuff
Food chains are different from food webs in what way?
Food webs consist of many, interrelated food chains.
What uses oxygen and glucose to produce carbon dioxide, water, and energy for the cell?
Cellular respiration in the mitochondria
The cell wall is mostly made of what kind of molecule?
phospholipids
What is one difficulty of measuring in an experiment?
Accuracy of the measuring instrument, accuracy of reading the measurement, inconsistency of the thing being measured.
chlorophyll
Which two forms of transport are passive?
diffusion and osmosis
What is the difference between a control variable and an experimental variable?
Experimental variables are those you are testing; control variables are those which you keep the same for the sake of isolating the experimental variable.
Movement of molecules that requires energy is called what?
Active transport.
Which organelle in plants store water to keep the cell turgid?
central vacuole
What are the steps of the scientific method?
Wondering
Hypothesizing
Testing
Concluding
The movement of water across a membrane is called what?
Osmosis
What does photosynthesis produce?
What are the 5 levels of organization in biology?
Cell
Tissue
Organ
Organ System
Organism
Powerful enzymes are found in what organelle?
The lysosome
What spectrum of light does chlorophyll absorb?
mostly blue, some red.