Download 1. The substance inside the cell membrane that consists of the

Introduction to Biology
Unit 1: Vocabulary Quiz A
active transport
cell membrane
cell wall
chloroplast
chromosomes
cytoplasm
diffusion
dynamic equilibrium
Name ____________________
equilibrium
evidence
facilitated diffusion
homeostasis
inference
input
lipid bilayer
mitochondria
negative feedback
nucleus
observations
organelle
osmosis
output
passive transport
positive feedback
qualitative
quantitative
ribosome
static equilibrium
system
vacuole
1. The substance inside the cell membrane that consists of the “watery” cytosol and all of the
organelles
2. A observation that describes “quantities” is a ___ observation; any time numbers or
measurements are used in an observation
3. The organelle that is the site of cellular respiration; found in both plant and animal cells.
4. DNA is neatly “packaged” and organized into these structures; we have 46 of them in the
nucleus of each of our body cells.
5. Energy is used to force a substance across a cell membrane from an area of low
concentration to an area of high concentration
6. Science is based on ____; this requires careful observation and testing ideas, not just
accepting them
7. The name given to the cell membrane because it is made of two layers of phospholipid
molecules
8. Science generally starts by making ____; the act of noticing and describing events or
processes in an orderly way, or using your senses to learn about the natural world
9. The movement of a substance from an area of high concentration to an area of low
concentration, but the substance must pass through a protein channel in order to cross the
cell membrane
10. The many small organelles found within the cytoplasm of all cells; this is where protein
synthesis takes place
11. The movement of a substance from an area of high concentration to an area of low
concentration
12. The diffusion of water
13. Found in eukaryotic cells, this is the “headquarters” of the cell; it contains and protects the
DNA (chromosomes)
14. Anything that relies on “inputs” and “output” to keep functioning properly; examples in
living things are: a cell, digestive, respiratory, eco-, the biosphere, etc.
15. A logical explanation for an observation; they can be reasonable or unreasonable.
16. What is removed from a system; they provide information that is used to regulate the
operation of the system (or “feedback”)
17. Maintaining a stable (balanced) internal environment; living things must maintain this in
order to properly function
18. A term that means “little organ”; these are the tiny structures found within the cytoplasm of
cells; each one has a specific job to do to keep that cell functioning properly.
19. An observation that describes the “qualities” of something is called a __ observation; colors
and shapes are examples.
20. Found in plant cells, this organelle contains the green pigment that can absorb the sun’s
energy; it is the site of photosynthesis
21. A system responds to stimuli in a manner that reduces the effect of the stimulus, which
keeps the system in balance…..like sweating when it is hot outside to keep your body
temperature at 98.6oF
22. No energy is expended to move a substance into or out of a cell across a cell membrane;
examples include diffusion, facilitated diffusion, and osmosis
23. The outer boundary of a cell that protects the cell from the external environment; it is
“selectively permeable” because it regulates what enters and leaves the cell; all cells have
one of these.
24. A system responds to stimuli in a manner that increases the effect of the stimulus, which
causes the system to continue in an “out of control” fashion until something outside the
system shuts it down.
25. A “storage unit” in a cell; plant cells have one large one that stores water and gives the plant
cell shape and helps support the plant.
26. A system is in balance because what is entering the system (inputs) are equal to what is
leaving the system (outputs).
27. A term that means “in balance”
28. What enters into a system; these include the energy sources needed to keep the system
functioning
29. A system is in balance, but there is no “net change” because there are no inputs or outputs
to the system; like a rock balancing on a cliff
30. Some cells, like plant cells, have this surrounding the outside of the cell membrane; it gives
the cell structural support