Download Test Two

________ pts out of 50 pts or ________ %
NAME/SECTION: ___________________________________________
Life Science Test # 2 on Chapter Two - AUGUST 2016
Matching
_______
1. This is the second phase of mitosis where the chromosomes
all line up across the MIDDLE of the cell and attach to a
spindle fiber at their centromere.
a. anaphase
b. cytokinesis
_______
_______
_______
2. This is the 1st stage of the cell cycle before cell division
occurs when the cell grows to its mature size, makes a
complete copy of its DNA, and prepares for mitosis.
3. In this final stage of the cell cycle, the cell membrane pinches
the cell in two so that the CYTOPLASM divides into two new
daughter cells, each with identical chromosomes.
4. This is the third phase of mitosis where the centromeres split
and the spindle fibers pull the chromatids apart so that
they move AWAY from each other to opposite ends of
the stretching cell.
_______
5. In this first phase of mitosis the nuclear membrane breaks
down, the chromatin in the nucleus condenses to form
chromatids and then chromosomes, spindle fibers appear.
_______
6. This is the final phase of mitosis where the cell elongates,
two new nuclei form around each region of chromosomes,
and the chromosomes again begin to appear as chromatin
(getting longer and thinner like threads rather than rods).
7.
c. telophase
d. interphase
e. prophase
f. metaphase
The process of making an exact COPY of something, for example, what DNA does, is called
________________________________________________ .
8.
The shape of a DNA molecule: ___________________________________________
WORD BANK for question 9:
Adenine
Guanine
Thymine
Cytosine
9. (2 pts) List how the nitrogen bases in DNA can ONLY pair up with each other:
_________________________
and
_________________________
_________________________
and
_________________________
10. Write the complete EQUATION for the process of photosynthesis:
11. What is the most important product (main purpose) of photosynthesis?
12. Write the complete EQUATION for the process of cellular respiration:
13. What is the important product (main purpose) of cellular respiration?
14. (2 pts) A process to obtain energy when NO OXYGEN (or very little oxygen) is present is
____________________________________________ . Give an example of this process:
_____________________________________________________________________________
15.
Passive transport does NOT require or use what and includes what two methods? (3 pts)
Cell does NOT need/use ______________________________ to occur
Two methods: ______________________________ and _____________________________
16.
The part of the PLANT that has the most chloroplasts in its cells because they act like solar
panels and collect or capture energy from the sun for photosynthesis to occur are the
________________________________________________________ .
17.
What are the tiny OPENINGS or pores on the underside of the leaves of a plant where
carbon dioxide enters and oxygen goes out called? ______________________________
True or False:
18.
______ Most of the Earth's oxygen is produced by cellular respiration.
19.
______ Fermentation is a more efficient process, so more energy is released in this process
than in cellular respiration.
20.
______ The cell cycle is divided so that each stage lasts approximately the same length of
time.
21.
______ Thankfully, all of the cells in the human body go through mitosis.
22.
______
Photosynthesis and cellular respiration can be thought of as opposite processes.
More Matching!
_______
23. The MOVEMENT of materials through a cell
membrane USING ENERGY
a. element
b. molecule
_______
24. Any substance that cannot be broken down into
simpler substances (such as oxygen)
c. active transport
________ 25. The MOVEMENT of WATER through a cell membrane
d. carbohydrates
________ 26. The smallest UNIT of most compounds (think H2O)
e. diffusion
_______
f. atom
27. Proteins that SPEED UP a chemical reaction in living
things
g. compound
_______
28. The smallest unit of an ELEMENT
h. carbon
_______
29. The MOVEMENT of materials through a cell
membrane from an area of higher concentration to
an area of lower concentration
i. nucleic acids
j. enzymes
_______
_______
30. What you have when two or more elements COMBINE
chemically in a set ratio or formula
31. Starches and sugars are two types of these energyrich organic compounds
k. lipids
l. proteins
m. osmosis
_______
32. ORGANIC compounds all contain this element
n. lactic acid
_______
33. Large organic compounds made up of amino acids
which are necessary to BUILD CELLS AND TISSUES
_______
34. Very large organic molecules that contain the
GENETIC material and instructions
_______
35. A byproduct of fermentation by muscle cells that
causes muscle soreness
_______
36. Organic compounds like fats that supply longlasting energy (especially for sleepy bears)
37. IN WORDS (no need to include numbers) fill in the blanks to describe the process of
photosynthesis. (5 pts)
raw materials:
__________________________________ and _______________________
energy source:
___________________________
end products:
____________________________________ AND _____________________
38. The term photosynthesis comes from the root words “photo” meaning _________________
and “synthesis” meaning __________________________________________ . (2 pts)
39. Active Transport requires or uses what and includes what two methods? (3 pts)
Cell uses/needs __________________________________ to occur
Two methods: _________________________________________________ AND
__________________________________________________