BIOLOGY NC EOC REVIEW UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

BIOLOGY NC EOC REVIEW UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. Cell Wall
Answer:
A rigid structure that surrounds the cells of plants, fungi, many protists, and most bacteria

Question:
2. Chloroplast
Answer:
A plastid containing chlorophyll; the site of photosynthesis

Question:
3. Chromatin
Answer:
The DNA and proteins in a non-dividing cell

Question:
4. Chromosome
Answer:
DNA and protein in a coiled, rod-shaped form that occurs during cell division

Question:
5. Cilium (cilia)
Answer:
A short, hairlike organelle that extends from a cell and functions in locomotion

Question:
6. Cytoplasm
Answer:
The region of a cell between the cell membrane and the nucleus

Question:
7. Cytoskeleton
Answer:
A network of long protein strands in the cytosolthat helps maintain the size and shape of the eukaryotic cell

Question:
8. Cytosol (cytoplasm)
Answer:
The gelatin like aqueous fluid that bathes the organelles on the inside of the cell membrane

Question:
9. Endoplasmic Reticulum

,Answer:
A system of membranous tubes and sacs in eukaroyotic cells that functions as a path along which
molecules move from one part of the cell to the other

Question:
10. Flagellum (flagella)
Answer:
A hair-like structure made up of microtubles that function in locomotion

Question:
11. Fluid Mosaic Model
Answer:
A model of cell membranes structure representing the dynamic nature of membrane lipids and proteins

Question:
12. Golgi Apparatus
Answer:
A system of membranes in eukaryotic cells that modifies protiens for export by the cell

Question:
13. Lysosome
Answer:
A organelle containing digestive enzymes, existing primarily in animal cells

Question:
14. Microtubule
Answer:
A hollow tube of protein that constitutes the largest strand in the cytoskelton

Question:
15. Mitochondria
Answer:
The organelle that is the site of aerobic respiration in eukaryotic cells

Question:
16. Nuclear Envelope
Answer:
A double membrane that surrounds the nucleus of eukaryotic cells

Question:
17. Nuclear Pore
Answer:
A small hole in the nuclear envelope through which substances pass between the nucleus and the
cytoplasm

Question:
18. Ribosome

, Answer:
An organelle that funtions in the synthesis of proteins

Question:
19. Rough Endoplasmic Reticulum
Answer:
The portion of the endoplasmic reticulum that contains attached ribosomes

Question:
20. Selectively Permeable Membrane
Answer:
A membrane that keeps some molecules out but allows others to pass through

Question:
21. Smooth Endoplasmic Reticulum
Answer:
The portion of the endoplasmic reticulum that lacks attached ribosomes

Question:
22. Spindle Fiber
Answer:
One of the microtubles that extend across a dividing eukaryotic cell; assists in the movement of
chromosomes

Question:
23. Vacuole
Answer:
A fluid filled organelle that store enzymes of metabolic waste material

Question:
24. Concentration Gradient
Answer:
the difference of a concentration of substance across a space

Question:
25. Contractile Vacuole
Answer:
an organelle in protists that expels water

Question:
26. Diffusion
Answer:
the process, by which, molecules move from an area of greater concentration to an area of lesser
concentration

Question:
27. Equilibrium