Download practice - Humble ISD

Unit 2 Test Review Sheet
I. Starts with:
1.
2.
3.
4.
5.
Small structure in a cell that performs a specific function = _O_ __ __ __ __ __ __ __ __
Dark spot in the nucleus where RNA for ribosomes is made = _N_ __ __ __ __ __ __ __ __
Sac of digestive hydrolytic enzymes = _L_ __ __ __ __ __ __ __
_R_ __ __ __ __ ER is covered by ribosomes and transports substances to the Golgi
apparatus.
The _C_ _ __ __ _W_ __ __ __ is found outside the cell membrane in plants and bacteria
and provides support and protection.
6. These sausage shaped organelles burn glucose and store the energy as ATP
= _M_ __ __ __ __ __ __ __ __ __ __ __
7. The molecule used by cells to store genetic information = _D_ __ __
8. An organism with a nuclear membrane and organelles surrounded by membranes =
_E_ __ __ __ __ __ __ __ __
9. The _N_ __ __ __ __ __ __ is surrounded by a double membrane, contains the cells DNA,
and acts as the control center.
10. One or two long hair-like structures called _F_ __ __ __ __ __ __ __ extend from the surface and
help move the cell.
11. The _C_ __ __ __ __ __ __ __ __ contains the gel-like material and organelles located between the
nucleus and cell membrane.
12. Smooth ER has several functions including regulating calcium levels in muscle cells, breaking
down
toxins in liver cells, and making membrane lipids called _S_ __ __ __ __ __ __ __.
13. The mitochondria and chloroplast have a _D_ __ __ __ __ __ membrane.
14. A cell membrane is a _B_ __ __ __ __ __ __ because the phospholipids line up in TWO
ROWS to try and keep their hydrophobic tails away from water.
15. The _C_ __ __ __ _M_ __ __ __ __ __ __ __ surrounds all cells and is selectively
permeable to control what enters and leaves the cell.
16.The function of ribosomes is to make _P_ __ __ __ __ __ __ __.
17. ER is an abbreviation for _E_ __ __ __ __ __ __ __ __ __ __
_R_ __ __ __ __ __ __ __ __
18. _S_ __ __ __ __ __ ER does NOT have ribosomes attached.
19. The thylakoid sacs found inside a _C_ __ __ __ __ __ __ __ __ __ __ are where photosynthesis
happens in plant cells.
20. _P_ __ __ __ __ __ __ __ __ __ __ __ __ have a polar head and two non-polar tails and combine with
proteins to make cell membranes.
21. A _G_ __ __ __ __
apparatus looks like stacks of pancakes which modifies, sorts, and packages
molecules for storage or transport out of the cell.
22. INTERGRAL proteins stick into the cell membrane. They can go part way or all the way through to the
other side.
23. Space for storing food, water, enzymes, or waste = _V_ __ __ __ __ __ __
24. A _P_ __ __ __ __ __ __ __ __ __ is an organism like a bacterium with NO NUCLEAR
MEMBRANE and NO MEMBRANE BOUND ORGANELLES.
25. _R_ __ __ __ __ __ __ __ __ are small structures that make proteins.
26. _B_ __ __ __ __ __ __ __ would be examples of cells that are PROKARYOTES.
27. The _C_ __ __ __ __ __ __ __ __ __ __ __ is made of microtubules and microfilaments in
the cytoplasm which provide support and give the cell its shape.
28. Molecule used by mitochondria to store energy = _A_ __ __
29. _C_ __ __ __ __ __ __ __ __ __ are log-like structures that appear during cell division in
animal cells and pull the chromosomes apart.
II. Matching – each response is used one time
A. Hooke
________30. The first scientist to describe living organisms in
pond water as seen through a microscope.
________31. Named the Nucleus
________32. Uses 2 or more lenses to magnify either living cells
or prepared slides, magnifies to 1000X
________33. Sends a beam of electrons through a specimen to show
Internal structures
________34. Came up with the Endosymbiotic Theory
________35. The scientist who first discovered that cork was composed
of tiny, hollow boxes
________36.. Concluded that all animals are made of cells.
B. Transmission E.M.
________37. Stated cell membrane is a physical structure
H. Scanning E.M.
________38. Concluded that all cells come from preexisting cells.
I.
________39. Concluded that all plants are made of cells.
J. Janet Plowe
________40. Can give a 1,000,000X 3D image
K. Robert Brown
C. van Leeuwenhoek
D. compound light microscope
E. Matthais Schleiden
F. Rudolf Virchow
G. Theodor Schwann
Lynn Margulis
III. Complete the table by placing a check mark under the appropriate column(s).
Characteristic
Prokaryotic cells
Contain definite nucleus
Have complex membrane bound structures
Eukaryotic Cells
Cells are larger
All are single-cellular
Contain DNA
Have a cell membrane
. Contains Ribosomes
IV. Identify each statement as describing cell membrane or cell wall.
______________41. A firm structure that protects and gives shape to the cell.
______________42. Flexible, allows the cell to change its shape
______________43. Not found in animal cells, but in plants, bacteria, & fungi
______________44. Helps maintain a chemical balance within the cell
V. Viruses
45. Viruses can only reproduce in a ________________ cell and are considered _________________.
46. Viruses are composed of _____________________ and a ________________ coat.
47. The viral cycle that quickly causes the cell to burst is the _________________cycle. EX:____________
48. Examples of a lysogenic infection are ______________________________and HIV.