2. The diagram below shows how food is processed in an organism.
The letter X most likely represents
1) Digestion 3) ATP
2 )Synthesis 4) Energy

3. The flow of energy in an ecosystem is best described as energy moving in
(1) one direction from the Sun to the
autotrophs and then the heterotrophs
(2) one direction from a consumer to a
producer and then to the Sun as heat
and light
(3) two directions between the producers
that are present
(4) two directions, back and forth, between
the producers and the consumers

4. The diagram represents a biochemical process.
Which molecule is represented by X?
Oxygen (3) protein
(2) starch (4) ATP

5. A biological process that occurs in both plants and animals is shown below.
Which row in the chart below identifies the lettered substances in this process?

6. A small water plant (elodea) was placed in bright sunlight for five hours as shown. Bubbles of oxygen gas were observed being released from the plant.
What substance did the plant most likely absorb from the water for the process that produces the oxygen gas?
dissolved nitrogen (3) an enzyme
(2) carbon dioxide (4) a hormone
Since oxygen gas is being released, it can be inferred that the plant is
producing glucose (3) releasing energy from water
(2) making protein (4) carrying on active transport

7. (2) glucose (4) lipid (fats)
A sample of food containing one type of a large molecule was treated with a specific digestive enzyme. Tests show the products of the enzyme catalyzed reaction are simple sugars, only. Based on these test results, the original large molecules contained in the food sample were molecules of
(1) protein (3) starch
(2) glucose (4) lipid (fats)

8. Because photosynthesis makes glucose!
Which phrase, if placed in box X, would correctly complete the flowchart shown below?
Increased use of starch in root cells
(3) Decreased ATP in root cells
(4) Decreased concentration of oxygen in leaf cells
(2) Increased concentration of glucose in leaf cells
Because photosynthesis makes glucose!

9. The diagram represents part of a cellular process .
Energy is released and made available for metabolic activities at
1) step 1, only 3) both step 1 and step 2
2) step 2, only 4) neither step 1 nor step 2

10. The diagram represents processes that occur in the chloroplasts of plant cells.

11. Which set of terms best identifies the letters in the diagram below?

12. By which process is the stored energy of organic molecules transferred to a form of energy that is usable by cells?
1) digestion ) photosynthesis
2) aerobism ) respiration

13. Much of the carbon dioxide produced by green plants is not sent away as a metabolic waste because it
can be used for photosynthesis
(2) is too large to pass through cell
membranes
(3) is needed for cellular respiration
(4) can be used for the synthesis of proteins

14. The diagram here represents a
process that occurs in a structure
of a specialized cell.
Which row in the chart
correctly identifies the
letters in the diagram?

15. The diagram shows a laboratory set-up used by students in a biology class.
After a day, what is a likely observation a student may make?
The solution outside the membrane will change to white
The solution outside the membrane will change to yellow
The solution inside the membrane will change to yellow
The solution inside the membrane will change to black

18. When changing from the low to the high power on a compound light microscope, how will the image appear to change?
(1) It becomes larger in a smaller field
(2) It becomes larger in a larger field
(3) It becomes smaller in a larger field
(4) It becomes smaller in a smaller field

19. WOO HOO!
organelle
cell
tissue
organ
organism

20. Identify a specific structure in a single-celled organism
Identify a specific structure in a single-celled organism. State how that structure is involved in the survival of the organism.
– stores info.
Nucleus
Cell membrane
– regulates what
enters and leaves.
Communicates.
Vacuole
– stores
material
Mitochondrion
– releases energy
from food
Chloroplast
– catch solar energy, make sugar

21. Which life function is not demonstrated?
In the diagram of a single-celled organism shown below, the arrows indicate various activities taking place.
Which life function is not demonstrated?
(1) Transport
(2) Nutrition
(3) Regulation (Control)
(4) Reproduction

22. Which letter indicates a cell structure that controls the movement of molecules into and out of the cell?
(1) A
(2) B
(3) C
(4) D

23. Which labeled structure regulates homeostasis by determining the rate of diffusion of oxygen and carbon dioxide?
Which structures located on organelle 1 play an important role in cellular communication?
(1) Receptor molecules
(2) Channel Proteins
(3) Waste indicators
(4) Passive ATP producers
(1) 1
(2) 2
(3) 3
(4) All

24. The diagram below represents a specimen on a slide as seen with the low-power
objective of a compound light microscope.
The specimen is partly hidden, how should the slide be moved to observe the entire specimen?
What is the circle in the diagram called?
To the left.
The field of view.

25. Which of the objective lenses is probably the 4 x (finder) lens?
The diagram here shows a person working with a compound light microscope.
Which of the objective lenses is probably the 4 x (finder) lens?
What is the total magnification of the highest power lens on our microscopes? A B C
400 X

26. The diagram represents a cross section of
part of a leaf.
Which life functions are directly regulated through the actions of the structures labeled X?
excretion and immunity
(2) digestion and coordination
(3) circulation and reproduction
(4) respiration and photosynthesis

27. WHY?

28. The arrows in the diagram indicate the
movement of materials into and out of a single celled organism.
These materials will enter or leave the cell without utilizing ATP energy because of
respiration pushing them with air flow
(2) diffusion from higher to lower concentrations
(3) the loss of ATP energy
(4) that these materials are not needed by the cell

29. Which laboratory procedure is represented in
the diagram?
placing a coverslip over a specimen
(2) removing a coverslip from a slide
(3) adding stain to a slide without removing the
coverslip
(4) reducing the size of air bubbles under a coverslip

30. (4) cellular respiration
Starch turns blue black in the presence of a starch indicator. Dialysis tubing tied at both ends and containing starch solution is placed in a beaker of water. Yellowish brown starch indicator is then added to the water.
What will the solutions in the beaker and the tubing look like after 20 minutes?
(1) The indicator solution in the beaker will be blue black and the
starch solution in the tubing will not change color.
(2) The starch solution in the tubing will be blue black and the
indicator solution in the beaker will not change color.
(3) Neither the indicator solution nor the starch solution will be blue
black.
(4) Both the indicator solution and the starch solution will be blue
This laboratory setup would most likely be used to demonstrate the process of
(1) diffusion
(2) active transport
(3) replication
(4) cellular respiration