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Biology Semester one final review

Total questions: 66

Worksheet time: 2hrs 14mins

Name
Class
Date
1.

What is the pH that will cause this particular enzyme to have a higher rate of reaction?

(a)  

2.

Enzymes are substances that speed up the rate of chemical reactions. The rate of enzyme action is affected by several factors. A researcher studying these factors made this graph. Which would be an appropriate title for this graph?

a)

Enzyme Action and Changes in pH

b)

The Effect of Temperature on Enzyme Populations

c)

How Enzyme Action Alters Temperature

d)

The Effect of Temperature on Enzyme Action

3.

A molecule is composed of chains of amino acids. The sequence of the amino acids determines the shape and the function of the molecule. Identify the molecule.

a)

Protein

b)

Carbohydrate

c)

Lipid

d)

Nucleic Acid

4.

The diagram shows a molecule made up of chains of hydrogen, carbon, and oxygen. This molecule performs numerous roles in living organisms. What type of molecule does the diagram represent?

a)

Lipid

b)

Carbohydrate

c)

Protein

d)

Nucleic Acid

5.

Identify the structures and processes at T.

a)

Mitochondria

b)

Chloroplast

c)

Ribosomes

d)

Cell membrane

6.

Which one of the cells shown is eukaryotic?

a)

The cell that contains the nucleus

b)

The cell that contains the ribosomes

c)

The cell that contains the ribosomes

d)

The cell that contains the ribosomes

7.
Which animal is not the apex predator but, a predator to a mouse?
a)
hawk
b)
rabbit
c)
snake
d)
grass
8.

Why is a wolf a carnivore?

a)

because it eats willow trees

b)

because it eats dead animals

c)

because it eats sand

d)

because it eats other animals

9.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
10.

Click on the picture of the graph. What is this graph showing?

a)

Lynx and hare populations over time

b)

Lynx and hare captures over time

c)

Lynx and hare offspring over time

d)

Lynx and hare speed over time

11.

Which pattern is found in the graph?

a)

The populations do not show a similar pattern

b)

The populations cycle opposite of each other about every 10 years. When one increases, the other decreases

c)

The populations cycle with each other about every 10 years. When one increases, the other also increases

12.

Provide an example of an abiotic factor in the ocean ecosystem image.

a)

coral

b)

fish

c)

water

d)

microorganisms

13.

Analyze the graph and describe the population over time of the lynx & the hare.

a)

The hare population increases and the lynx population stays the same.

b)

The lynx population increases and the hare population stays the same.

c)

When the hare population increases, the lynx population increases and when the hare population decreases, so does the lynx.

d)

The hare and lynx population stay the same over time.

14.

Identify a predator/prey relationship in the food web.

a)

grasshopper & butterfly

b)

python & rat

c)

fruit fly & corn

d)

lavender & flowering plant

15.

Look carefully at the image. If energy is lost as it moves up the food chain, what trophic level has the most amount of energy?

a)

1st level - producers

b)

2nd level - primary consumers

c)

3rd level - secondary consumers

d)

4th level - tertiary consumers

16.

If producers in this food web have 2,000kCal of energy, how much of that would end up going to the herring (secondary consumers)?

a)

200 kCal

b)

20 kCal

c)

2 kCal

d)

0.2KCal

17.

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

a)

There would be a decrease in the small bird population.

b)

There would be a decrease in the grass/flowers population.

c)

There would be a decrease in the mice population.

d)

There would be an increase in the grass/flowers population.

18.

As the elk decrease, what happens to the population of willow trees?

a)

Increases

b)

Decreases

c)

Stays the same

19.

What is the carrying capacity of the graph?

a)

around 500

b)

more than 800

c)

less than 300

d)

around 700

20.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

21.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

22.
The process whereby plants capture energy and make complex molecules is
a)
chemosynthesis
b)
cell respiration
c)
photosynthesis
d)
homeostasis
23.
What gas does the process of photosynthesis release into the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
24.
organelle where photosynthesis occurs is the
a)
mitochondria
b)
ribosome
c)
chloroplast
d)
nucleus
25.
What three things are always needed for photosynthesis
a)
water, light, fertilizer, oxygen
b)
water, light, chlorophyll, oxygen
c)
water, roots, stems, leaves
d)
water, light, chlorophyll, carbon dioxide
26.
Cellular respiration is...
a)
the process by which cells break down glucose into energy. 
b)
the process by which cells break light down into energy. 
c)
the process by which cells communicate with other cells. 
27.
Cellular respiration occurs in 
a)
chloroplasts 
b)
mitochondria
c)
golgi aparatus 
d)
thylakoid 
28.
Please select who performs cellular respiration: 
a)
Animals 
b)
Both animals and plants 
c)
plants 
29.
Cellular respiration and photosynthesis are related because...
a)
They both make glucose
b)
They both require oxygen
c)
The products of one reaction are the reactants of the other reaction
d)
They both make carbon dioxide
30.
Which of the following illustrates the correct ordering of trophic levels?
a)
decomposers-carnivores-autotrophs-herbivores
b)
herbivores-autotrophs-carnivores-decomposers
c)
producers-herbivores-carnivores-decomposers
d)
carnivores-producers-omnivores
31.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
32.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
33.
What is happening at 1?
a)
respiration: releasing CO2
b)
decomposing CO2 in the soil
c)
photosynthesis: absorbing CO2
d)
turning CO2 from the atmosphere into organic molecules
34.
Greenhouse gases....
a)
make plants green
b)
increase the temperature of the earth
c)
produce oxygen
d)
decrease the temperature of the earth
35.
Abiotic factors are parts of the environment that are...
a)
Nonliving 
b)
Living
c)
Populations
d)
Vegetation
36.
Which of the following statements is not part of the cell theory?
a)
Cells are the basic unit of structure and function in all living things.
b)
All cells are produced from other cells.
c)
Only animal cells are composed of cells.
d)
All living things are composed of cells.
37.
What is one way in which all living things on Earth are alike?
a)
All living things have hair.
b)
All living things are made of cells and come from other cells.
c)
The cells of all living things have chloroplast.
d)
All living things can move. 
38.
What structures distinguish a plant cell from an animal cell?
a)
Plant cells have cell walls and ribosomes.
b)
Plant cells have cell walls and chloroplasts.
c)
Plant cells have chloroplasts and ribosomes.
d)
Plant cells have chloroplasts and mitochondria.
39.
Living things need energy to survive?
a)
True
b)
False
40.
What type of cell is pictured?
a)
Prokaryotic
b)
Eukaryotic
c)
Plant
d)
Animal
41.
Which is true of prokaryotic and eukaryotic cells?
a)
Prokaryotic cells are larger than eukaryotic cells.
b)
Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
c)
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
d)
Eukaryotic cells are simpler than prokaryotic cells.
42.
Which of the following would be found in both eukaryotic AND prokaryotic cells?
a)
chloroplast
b)
cytoplasm
c)
nucleus
d)
endoplasmic reticulum
43.
Type of cell shown?
a)
Bacterial
b)
Prokaryotic
c)
Eukaryotic
d)
Red blood 
44.
Which organelle does photosynthesis take place in?
a)
Mitochondrion
b)
Chlorplast
c)
Cytoplasm
d)
Nucleus
45.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
6CO2 + 6H2O --> 6O2 + C6H12O6
b)
6CO2 + C6H12O6 + 6H2O --> O2 
c)
6O2 + 6H2O --> 6CO2 + C6H12O6
d)
C6H12O6 + 6O2 ---> 6H2O + 6CO2 
46.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
47.
How can photosynthesis be related to cellular respiration?
a)
What's produced (made) by one is needed (the reactants) for the other
b)
They both produce the same products
c)
They both have the same reactants (need the same things)
d)
These 2 processes have nothing in common
48.
What is one of the reactants of cellular respiration?
a)
energy
b)
glucose
c)
carbon dioxide
d)
water
49.
______________ produces the most ATP.
a)
photosnthesis
b)
aerobic respiration
c)
anaerobic respiration
d)
glycolysis
50.
What part of our cells holds our DNA?
a)
cytoplasm
b)
cell membrane
c)
nucleus
d)
ribosomes
51.
What has DNA?
a)
animals
b)
plants
c)
bacteria
d)
all of the above
52.
Which biomolecule includes fats, such as triglycerides, oils, waxes, and steroids (cholesterol); insoluble in water; provides energy storage, insulation, part of cell membrane, and hormones 
a)
Nucleic Acid
b)
Lipids
c)
Carbohydrate
d)
Protein
53.
Which organic macromolecules are composed of chains of amino acids that join to form the structural components of organisms.
a)
Carbohydrates
b)
Proteins
c)
Amino Acids
d)
Lipids
54.
Based on the graph, what temperature does this enzyme work best? 
a)
15 C
b)
40 C
c)
30 C
55.
Which organelle is only found in a plant cell? 
a)
nucleus
b)
chloroplast
c)
mitochondria
d)
cell membrane
56.
This organelle converts organic material (food) to ATP (cell energy).
a)
Nucleus
b)
Ribosome
c)
Mitochondria
d)
ER
57.
Which of the following provide evidence for the hypothesis that prokaryotes evolved before eukaryotes.
a)
prokaryotes are more complex
b)
prokaryotes have no nucleus and fewer genes
c)
eukaryotes are multicellular which makes them simpler
d)
prokaryotes grow into eukaryotes
58.

The _ is an organized set of investigation procedures used by scientists.

a)

scientific method

b)

scientific law

c)

scientific theory

59.

A _ is an educated guess or testable prediction

a)

control

b)

hypothesis

c)

dependent variable

60.

A _ is a standard for comparison.

a)

hypothesis

b)

control

c)

dependent variable

61.

The factor that is adjusted by the experimenter is the _.

a)

control

b)

independent variable

c)

dependent variable

62.

The factor whose value depends on the independent variable is the _.

a)

experiment

b)

constant

c)

dependent variable

63.
Rigoberto writes down his hypothesis that more salt will dissolve in cold water than in warm water.  He adds salt to different temperatures of water and records his observations including the amount of undissolved salt.  He finds that there is more salt dissolved in warm water than cold water.  What should Rigoberto do next to make sure that his conclusion is valid?
a)
do another investigation with sugar
b)
repeat his investigation using a different liquid than water
c)
repeat his investigation to see if his results are the same
d)
change his results to match his original hypothesis
64.
How many variables should be changed in a simple experiment?
a)
5
b)
3
c)
1
d)
6
65.
A scientist tested an exercise machine.  He had two groups of volunteers.  Group A exercised every day for a month.  Group B did not exercise.  He made the table below to compare their muscle strength over 30 days. What is Group B’s role in the scientist’s investigation?
a)
Group B's role is the variable.
b)
Group B's role is the control group.
66.
 A biologist is investigating the effects of growth hormone on the rate of metamorphosis in butterflies. Which of the following methods of investigation would work best for the biologist investigating any possible effects?
a)
models
b)
controlled experiments
c)
systematic observations
d)
random sampling of populations

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