Name: 
 

Gateway Practice Test No. 1



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

1. 

Directions: The question below shows the chemical reaction that occurs during photosynthesis. Use the equation to answer questions 1 -2.

gateway_practice_te_files/i0020000.jpg
What is produced during photosynthesis?
a.
Carbon dioxide and water
b.
Light energy     
c.
Carbon dioxide and glucose
d.
Glucose and oxygen
 

2. 

Why are the words "light energy" written above the arrow in the equation?     
a.
Light energy is necessary for the reaction to occur     
b.
Light energy is produced during the reaction.     
c.
Oxygen exists only in the presence of light.
d.
Glucose exists only in the presence of light.
 

3. 

Which of the following statements is NOT part of the cell theory?
a.
Cells are the basic unit of structure and function in living things.
b.
All cells are produced from other cells.
c.
Only animals are composed of cells.
d.
All living things are composed of cells.
 

4. 

What is binomial nomenclature?
a.
Classifying organisms into seven levels.
b.
The naming system developed by Aristotle.
c.
Grouping animals based on how they move.
d.
A naming system in which each organism is given a two-part name.
 

5. 

A human body cell has 46 chromosomes. How many chromosomes will each of its daughter cells have?
a.
23 (46 ÷2)
b.
46
c.
92 (46 x 2)
d.
184 (46 x 4)
 

6. 

Which biome is located along the equator?
a.
Boreal forest
b.
Tropical rain forest
c.
Temperate rain forest
d.
Desert
 

7. 

Which of the following is an SI unit of mass?
a.
Centimeter (cm)
b.
Kilogram (kg)
c.
Milliliter (mL)
d.
Cubic centimeter (gateway_practice_te_files/i0080000.jpg)
 

8. 

Directions: Use the information and the table below to answer questions 8 through 10.
Alligators are large reptiles with muscular tails, large teeth, and strong jaws. Like nearly all reptiles, alligators hatch from eggs.
The table shows the results of an experiment conducted with alligator eggs. Scientists incubated the eggs of one alligator species at different temperatures. When the eggs hatched, the scientists counted the numbers of males and females born in each group of eggs.

Incubation Temperature
Number of Females
Number of Males
29.4°C
80
0
30.6°C
19
13
31.7°C
13
38
32.8°C
0
106

What question were the scientists most likely trying to answer?
a.
Does the body temperature of newborn alligators depend on the incubation temperature?
b.
Do different alligator species hatch at different incubation temperatures?
c.
Do high incubation temperatures prevent alligator eggs from hatching?
d.
Does the incubation temperature of the eggs affect the sex of the alligator?
 

9. 

What was the manipulated variable in the experiment?
a.
Day of the week
b.
Location of the laboratory
c.
Incubation temperature
d.
Color of the egg
 

10. 

What might the scientists conclude from these data?
a.
The number of males increases with increasing temperature.
b.
The number of males decreases with increasing temperature.
c.
The number of females increases with increasing temperature.
d.
No females are born at temperatures above 31°C.
 

11. 

Which of these shows the correct path of air through the human respiratory system?
a.
Nose gateway_practice_te_files/i0120000.jpg tracheagateway_practice_te_files/i0120001.jpgesophagusgateway_practice_te_files/i0120002.jpgbronchigateway_practice_te_files/i0120003.jpgalveoli
b.
Nosegateway_practice_te_files/i0120004.jpgalveoligateway_practice_te_files/i0120005.jpgpharynxgateway_practice_te_files/i0120006.jpgtracheagateway_practice_te_files/i0120007.jpgbronchi
c.
Nosegateway_practice_te_files/i0120008.jpgpharynxgateway_practice_te_files/i0120009.jpgtracheagateway_practice_te_files/i0120010.jpgalveoligateway_practice_te_files/i0120011.jpgbronchi
d.
Nosegateway_practice_te_files/i0120012.jpgpharynxgateway_practice_te_files/i0120013.jpgtracheagateway_practice_te_files/i0120014.jpgbronchigateway_practice_te_files/i0120015.jpgalveoli
 

12. 

Which animal has an adaptation that allows it access to a source of food that is protected from most other plant-eating mammals?
a.
gateway_practice_te_files/i0130000.jpg
c.
gateway_practice_te_files/i0130001.jpg
b.
gateway_practice_te_files/i0130002.jpg
d.
gateway_practice_te_files/i0130003.jpg
 

13. 

An organism is a multicellular heterotroph. Its cells have nuclei and cell walls. Into which kingdom could this organism be classified?
a.
Plants
b.
Animals
c.
Fungi
d.
Eubacteria
 

14. 

Which source should you turn to first for a broad overview of the plant kingdom?
a.
Internet
b.
Gardening magazine
c.
Encyclopedia
d.
Newspaper
 

15. 

What is the purpose of the Human Genome Project?
a.
To identify the DNA sequence of every gene in the human genome
b.
To clone every gene on a single chromosome in human DNA
c.
To splice every gene on a single chromosome in human DNA
d.
To inbreed the best genes on every chromosome in human DNA
 

16. 

What is the best way to dispose of chemicals after an experiment?
a.
Wear goggles while pouring them down a drain.
b.
Use a funnel to return them to their original container.
c.
Follow your teacher's instructions.
d.
Pour them into a wide-mouth glass jar, seal the jar, then gently place it in the trash.
 

17. 

An ameba is a unicellular organism that lacks a cell wall. It can move from place to place to obtain food by eating other organisms. Scientists classify amebas as --
a.
animals
b.
bacteria
c.
fungi
d.
protists
 

18. 

Directions: Use the table below to answer question 18.
Immunity Type
Antibody Source
Duration
Active immunity
Within body
Many years
Passive immunity
Outside body
Few months

How can active immunity be acquired?
a.
Vaccination with a weakened pathogen
b.
Injections of antibodies
c.
Passed from mother to baby before birth
d.
Taking medication for an illness
 

19. 

Which of these is an inherited trait?
a.
Pierced ears
b.
Long fingernails
c.
Long hair
d.
Brown eyes
 

20. 

Which of the following plants is classified as a moss?
a.
gateway_practice_te_files/i0210000.jpg
c.
gateway_practice_te_files/i0210001.jpg
b.
gateway_practice_te_files/i0210002.jpg
d.
gateway_practice_te_files/i0210003.jpg
 

21. 

Why is water important for a cell?
a.
Water is the main ingredient in DNA.
b.
All proteins require water to function.
c.
Most chemical reactions in cells require water.
d.
Water is an essential organic compound for the body.
 

22. 

Directions: Use the information given below to answer questions 22 through 24.

A dog breeder has begun to raise Labrador retrievers. So far, she hasn't been able to predict the color of the puppies that she breeds. She does not know that dark fur (D) is dominant over yellow fur (d).

When the breeder crossed a yellow female Labrador retriever with a male Labrador with dark fur, she expected half of the puppies to be yellow and half of the puppies to be dark. However, in a litter of 8 puppies, all had dark fur. The breeder next crossed the same yellow female with a different dark male. This time, half of the puppies were yellow and half were dark.

Which letters represent the genotype of the first male?
a.
Dd
b.
DD
c.
dD
d.
dd
 

23. 

Which letters represent the genotype of the second male?
a.
Dd
b.
DD
c.
DO
d.
dd
 

24. 

How can the woman breed a litter of all yellow puppies?
a.
By making sure that either the mother or the father is yellow.
b.
By making sure that both the mother and the father are yellow.
c.
By making sure that at least one of the grandparents is yellow.
d.
She cannot breed a yellow litter since yellow fur is recessive.
 

25. 

The largest mammal on Earth is the blue whale, which can grow to be 33.5 meters in length. The smallest mammal is the bumblebee bat, at 2.5 centimeters long. How many bumblebee bats would it take to equal the length of a blue whate?
a.
13,400
b.
1,340
c.
134
d.
13.4
 

26. 

One characteristic used to place organisms into kingdoms is --
a.
how they move
b.
where they live
c.
their ability to make food
d.
their ability to reproduce
 

27. 

Invertebrate carnivores that use stinging cells to capture their prey and defend themselves are classified as --
a.
arthropods
b.
mollusks
c.
echinoderms
d.
cnidarians
 

28. 

Which of these organisms stays in one place like a plant, but is an animal because it takes in food?
a.
gateway_practice_te_files/i0290000.jpg
c.
gateway_practice_te_files/i0290001.jpg
b.
gateway_practice_te_files/i0290002.jpg
d.
gateway_practice_te_files/i0290003.jpg
 

29. 

Which form of selective breeding crosses genetically different individuals in an attempt to keep the best traits of both parents?
a.
Genetic engineering
b.
Inbreeding
c.
Hybridization
d.
Cloning
 

30. 

A group of ecosystems with similar climates and organisms is called a(n) --
a.
energy pyramid
b.
climate
c.
biome
d.
food web
 

31. 

gateway_practice_te_files/i0320000.jpg

According to the Punnett square above, what percent of the offspring will have purple flowers?
a.
25%
b.
30%
c.
50%
d.
75%
 

32. 


Directions: Use the diagram below to answer questions 32 and 33.
gateway_practice_te_files/i0330000.jpg

What are the organisms in the number one level called?
a.
Primary consumers
b.
Producers
c.
Parasites
d.
Predators
 

33. 

In this food web, the number five level includes bacteria and fungi. What are the organisms in the number five level called?
a.
Herbivores
b.
Decomposers
c.
Scavengers
d.
Carnivores
 

34. 

Factors that control traits are called --
a.
genes
b.
purbreds
c.
recessives
d.
parents
 

35. 

What is taxonomy?
a.
The scientific study of how living things are classified.
b.
The name of Aristotle's classification system.
c.
The process used by geologists to classify rocks.
d.
The process of observing an organism's behavior.
 

36. 

Diffusion, osmosis, and active transport are all --
a.
methods by which substances move into and out of a cell.
b.
means by which cells reproduce.
c.
proceses that speed up chemical reactions in a cell.
d.
ways that cells convert food to energy.
 

37. 

Directions: Use the diagram below to answer questions 37 and 38.
gateway_practice_te_files/i0380000.jpg

Where does blood enriched with oxygen from the lungs enter the heart?
a.
Right atrium
b.
Right ventricle
c.
Left ventricle
d.
Left atrium
 

38. 

What muscle divides the heart into a right side and a left side?
a.
Left ventricle
b.
Left atrium
c.
Septum
d.
Aorta
 



 
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