Name: 
 

Gateway Practice 3



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?
a.
25 percent
b.
50 percent
c.
75 percent
d.
100 percent
 

2. 

The umbrella-shaped sporophyte of a liverwort is necessary for --
a.
transportation of water
b.
absorption of water
c.
photosynthesis
d.
reproduction
 

3. 

An organism's scientific name consists of --
a.
its class name and its family name
b.
its kingdom name and its phylum name
c.
its genus name and its species name
d.
its phylum name and its species name
 

4. 

What is a characteristic of almost all producers?
a.
They contain chlorophyll.
b.
They are large organisms.
c.
They do not decompose.
d.
They reproduce slowly.
 

5. 

Which of the mammal forelimbs shown below is BEST adapted for living in trees?
a.
gateway_practice_3_files/i0060000.jpg
c.
gateway_practice_3_files/i0060001.jpg
b.
gateway_practice_3_files/i0060002.jpg
d.
gateway_practice_3_files/i0060003.jpg
 

6. 

Fruit hanging on the branches of a tree indicates that the tree is
a.
a flowering plant
b.
growing near bees
c.
never going to produce seeds
d.
has not yet been pollinated
 

7. 

Which of these types of pollution would cause the MOST sudden changes to a marshland biome?
a.
acid rain
b.
greenhouse gases
c.
oil spill
d.
smog
 

8. 

Identify the hypothesis from the following list of statements:
a.
The vacuum picked up twenty strips of paper.
b.
The water in this bottle froze in fifteen minutes.
c.
If the rate of the rain flow continues, the pool will fill in ten minutes.
d.
The roses on the bush have all turned red.
 

9. 

Usually, food and energy flow from
a.
sun, producers, decomposers, consumers
b.
sun, decomposers, consumers, producers
c.
consumers, sun, producers, decomposers
d.
sun, producers, consumers, decomposers
 

10. 

Unicellular organisms without a nucleus and many other structures found in other cells are known as:
a.
animals
b.
plants
c.
protists
d.
bacteria (monerans)
 

11. 

Which statement is true regarding the eye color of the offspring of one parent with a genotype of BB (brown) eyes and the other parent with a genotype of bb (blue) eyes? Brown eyes are dominant over blue.
a.
all four will have blue eyes
b.
one will have blue eyes and the other three will have brown eyes
c.
two will have brown eyes and two will have blue eyes
d.
all four will have brown eyes
 

12. 

Which of these questions would produce results that can be measured for a scientific investigation?
a.
Which brand of pizza tastes best?
b.
Who is the best athlete in the world?
c.
Which battery lasts the longest?
d.
What is the most beautiful wildflower in Georgia?
 

13. 

Which of the following is NOT made up of cells?
a.
pine cone
b.
sand
c.
dog
d.
leaf
 

14. 


Directions: Use the diagram to answer questions 14 and 15.
gateway_practice_3_files/i0150000.jpg
What level of organization is represented by structure D?
a.
A cell
b.
An organ
c.
A tissue
d.
An organ system
 

15. 

Structure B is made up of similar cells working together. What level of organization is structure B?
a.
A cell
b.
A tissue
c.
An organ
d.
An organ system
 

16. 

During Jill's laboratory investigation, she had to use a Bunsen burner. Which lab rules would be most important during this lab experiment?
a.
Move electrical equipment away from the water.
c.
Never eat or drink anything used in a lab experiment.
b.
Wash hands throughly with soap and water.
d.
Tie back any loose hair and oversized clothing.
 

17. 

In a field experiment with plants, which of the following is NOT a rule students should follow?
a.
Wash your hands throughly after handling plants.
c.
Tell your teacher if you are allergic to certain plants.
b.
Use the taste method to identify plant types.
d.
Remove only the leaves and flowers needed.
 

18. 

Maria is doing an experiment in which she uses jelly beans to model alleles for a trait. Which lab rule is most important to remember in this situation?
a.
Keep chemicals away from the eyes and skin.
c.
Never eat or drink anything used in a lab experiment.
b.
Wash hands throughly with soap and water.
d.
Properly dispose of waste as instructed by your teacher.
 

19. 

What does the SI prefix deca- mean?
a.
10
c.
100
b.
1,000
d.
10,000
 

20. 

Which number corresponds to the prefix centi-?
a.
0.01
c.
1000
b.
0.1
d.
10
 

21. 

What is the SI unit of measurement for temperature?
a.
Fahrenheit
c.
Newton
b.
Celsius
d.
Kelvin
 

22. 

What SI prefix does gateway_practice_3_files/i0230000.jpg stand for?
a.
Milli
c.
Micro
b.
Deka
d.
Mega
 

23. 

If you travel 5 miles, about how many kilometers have you gone?
a.
5
c.
8
b.
10
d.
1.6
 

24. 

Which of the following would you use to measure the length of an object?
a.
Yardstick
c.
Thermometer
b.
Balance
d.
Graduated cylinder
 

25. 

What would a graduated cylinder be used to measure?
a.
Time
c.
Mass
b.
Length
d.
Volume
 

26. 

What measurement is a scientist using a balance probably trying to find?
a.
Volume
c.
Length
b.
Mass
d.
Temperature
 

27. 

Respiration in most cells requires
a.
water
c.
chlorophyll
b.
oxygen
d.
carbon dioxide
 

28. 

Which term refers to proteins that speed up chemical reactions in living things?
a.
Carbohydrates
c.
Amino acids
b.
Enzymes
d.
Nucleic acids
 

29. 

Which organelles release chemicals that break down large food particles into smaller ones?
a.
Endoplasmic reticulum
c.
Lysosomes
b.
Golgi bodies
d.
Vacuoles
 

30. 

Directions: Use the diagram to answer questions 30 and 31.
gateway_practice_3_files/i0310000.jpg
Which labeled structure produces most of the energy the cell needs?
a.
A
c.
C
b.
B
d.
D
 

31. 

What is the function of structure C?
a.
To package proteins
c.
To direct cell activities
b.
To provide energy to the cell
d.
To transport proteins
 

32. 

Directions: Use the diagram to answer questions 32 through 34.
gateway_practice_3_files/i0330000.jpg
The structure labeled A are chloroplasts. What are their functions?
a.
To store substances
c.
To control cell activities
b.
To aid photosynthesis
d.
To package proteins
 

33. 

Structure B is a vacuole. What is its function?
a.
To store substances
c.
To contol cell activities
b.
To aid in photosynthesis
d.
To package proteins
 

34. 

Which structures in the diagram are NOT found in animal cells?
a.
Nucleus
c.
Structure B
b.
Structure A
d.
Structures A and C
 

35. 

A group of cells that perform a similar function is called
a.
an organ
c.
a tissue
b.
an organ system
d.
the cytoplasm
 

36. 

Which of the following lists the levels of cell organization from least to most complex?
a.
Organs, cells, organ systems, tissues
c.
Tissues, organs, organ systems, cells
b.
Cells, tissues, organs, organ systems
d.
Cells, organs, organ systems, tissues
 

37. 

What is the level of organization at which organs work together to perform a function?
a.
Tissue system
c.
Cells
b.
Organ system
d.
Organism
 

38. 

What is the function of a cell membrane?
a.
To protect and support the cell
c.
To control what enters and leaves the cell
b.
To perform different functions in each cell
d.
To form a hard outer covering for the cell
 

39. 

Which term refers to the movement of water molecules through a selectively permeable membrane?
a.
Osmosis
c.
Diffusion
b.
Engulfing
d.
Concentration
 

40. 

What happens during meiosis?
a.
Each sex cell loses half of its chromosomes.
c.
Each sex cell copies itself to form four new chromosomes.
b.
Chromosome pairs separate to form new sex cells.
d.
Chromosome pairs remain together when new sex cells are formed.
 

41. 

What is the process in which a cell's nucleus divides to form two identical nuclei?
a.
Mitosis
c.
Interphase
b.
Meiosis
d.
Sexual reproduction
 

42. 

What is the process in which a parent cell divides twice to produce sex cells?
a.
Cell cycle
c.
Interphase
b.
Mitosis
d.
Meiosis
 

43. 

Directions: Use the diagram to answer questions 43 and 44.
gateway_practice_3_files/i0440000.jpg
What stage of mitosis is shown in the drawing 5 above.
a.
Prophase
c.
Metaphase
b.
Telephase
d.
Anaphase
 

44. 

Which of the following lists the stages of mitosis in the correct order, with interphase listed first?
a.
3, 1, 5, 4, 2
c.
2, 5, 1, 4, 3
b.
1, 2, 4, 3, 5
d.
3, 2, 5, 1, 4
 

45. 

What forms around the chromatids during mitosis?
a.
Two new chromosomes
c.
Two new cells
b.
Two new nuclei
d.
Two new DNA molecules
 

46. 

Which organ systems help deliver oxygen to body cells?
a.
Digestive and excretory systems
c.
Endocrine and muscular systems
b.
Circulatory and immune systems
d.
Respiratory and circulatory systems
 



 
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