Biology –Practice Quiz
CELLS-fill in the blanks.
Organelle
Function
Nucleus
Cell membrane
Main office
Lets some things in/out
Burns sugar to release
energy
Rough Endoplasmic
Reticulum (ER)
&
Smooth ER
Produces
_______________
Vs.
Produces
_______________
Golgi Apparatus
Packages proteins
Ribosomes
Put together proteins
Plant cells only Stores
sunlight energy in
sugar for later use
Lysosomes
Vesicles
Factory part
Generator
Conveyor belt
Packing dept.
Solar panels
Animal cells only
Recycles used cell parts
Storage of food &
water; very large in
plant cells
Storage room
Plant cells only
Structural support
Fence; external support
beams
Moves particles around
cell or to cell
membrane for export
MEMBRANES
Cellular transport. Below are some pictures of cells in solution. Label the solutions as hypertonic,
hypotonic, or isotonic. Use an arrow to indicate the direction of water movement. (3 points each)
= salt
1. ________________
2. ________________
3. ________________
Define and draw a simple illustration of each of the following. (5 points each)
4. endocytosis
5. exocytosis
6. facilitated diffusion
PHOTOSYNTHESIS
Vocabulary. Match the word with its definition. Write the letter of your choice on your answer sheet.
1.
2.
3.
4.
5.
6.
7.
granum ___
stroma ___
stomata___
chlorophylls___
carotenoids ___
PGAL ___
glucose___
a. pigments which reflect yellow and red light
b. the simplest sugar
c. small openings on the lower leaf surface
d. pigments which absorb violet and red light
e. a stack of circular membranes containing chlorophyll
f. the liquid portion inside the chloroplast
g. the precursor for carbohydrates
8.
Draw and label a chloroplast below. Include: stroma, thylakoid, granum, outer membrane.
9.
Describe the thylakoid membrane. How many layers is it? ______ What molecules make it up?
____________________________
10. Photosynthesis occurs in ________ main parts. Name them.
11. Plants take in energy from the sun. What happens when light strikes Photosystem I & II?
12. What happens to the electrons from Photosystem I & II when light hits them?
13. How do the electrons lost from Photosystem I get replaced?
14. How do the electrons lost from Photosystem II get replaced?
15. Why can’t the plant use energy from the sun directly?
16. What molecule(s) represent small units of energy?
17. How is ATP formed? Give 3 steps
Short Answer. Follow the instructions for each question.
18 In the video, some famous scientists were mentioned. For the two people below, write a statement to
explain why he is remembered for his work in photosynthesis.
a. Joseph Priestley
b.
Melvin Calvin
19. Draw and label a chloroplast below. Label the thylakoids, grana, outer memberane, and stroma.
20. Draw a simple Calvin Cycle. Label CO2, RuBP, PGAL, and sugar. This process occurs in the
(a)________________ of the chloroplast. It represents a series of reactions we call the (b)__________
Reaction.
21. Photosynthesis occurs in (a)______ distinct phases. The products of the (b)______________ reaction
are (c)__________ and high-energy electrons (or NADPH). The products of the (d)______________
Reaction, or (e)_____________ Cycle, are (f)______________. Both reactions occur during
(g)_________________.
22.
Explain why C4 plants are adapted to hot climates.
23.
What are stomata and where are they located?
24.
Write the over-all equation for photosynthesis.
25.
Why are enzymes needed in cell processes?
Use the diagrams above to answer the following questions:
1. How many layers is the thylakoid membrane? What molecules make it up?
2.
What happens when light strikes P2 and P1?
3.
When electrons are lost from P2 what replaces them?
4.
When electrons are lost from P1 what replaces them?
5.
What happens as the electrons from P2 are passed through the electron transport chain?
6.
What is the waste product of photosynthesis?
7.
What happens after the proton gradient is high inside of the thylakoid? What is produced with this
energy?