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Semester 1 Review Biology

Total questions: 77

Worksheet time: 1hrs 17mins

Name
Class
Date
1.

What is the study of the biotic and abiotic factors in relation to one another called?

a)

Genetics

b)

Protein Synthesis

c)

Photosynthesis

d)

Ecology

2.

What is the greenhouse effect?

a)

It is a phenomenon where the sun’s rays are absorbed by clouds.

b)

It is a phenomenon that occurs when heat escapes into space.

c)

It is when heat is trapped by gases, then sent back to earth’s surface.

d)

It describes the atmosphere’s composition.

3.

In this photo, what is an abiotic factor?

a)

Deer

b)

Grass

c)

rain

4.

What Biome is very dry; receives very little rainfall?

a)

Tropical Rain Forest

b)

Desert

c)

Tundra

d)

Tropical Savanna

5.

What would be a good example of a primary consumer?

a)

carnivore

b)

detrivore

c)

decomposer

d)

herbivore

6.

Which organisms would be at the top or last trophic level?

a)

plant

b)

herbivore

c)

omnivore

d)

carnivore

7.

The monkey would be a

a)

decomposer

b)

producer

c)

primary consumer

d)

secondary consumer

8.

Introduced species disrupt ecosystems because they are a/an

a)

Keystone Species

b)

Endemic Species

c)

Invasive Species

d)

Native Species

9.

Mice might grow in population and destroy the community by eating all of the berry bushes if

a)

wolves and snakes were removed from the food web

b)

another predator migrated in to the community

c)

the snake population grew

d)

none of these

10.

These organisms are often not shown in a food chain, but are important for recycling nutrients

a)

producers

b)

decomposers

c)

primary consumers

d)

carnivores

11.

90% of the energy that gets lost as you move up a food pyramid or chain gets lost as

a)

pollution to the environment

b)

heat to the environment

c)

energy for decomposers

d)

gets recycled

12.

What percentage of energy is passed on to the next trophic level?

a)

5%

b)

10%

c)

50%

d)

90%

13.
Non-living factor that affects an ecosystem
a)
biotic factor
b)
abiotic factor
c)
food chain 
d)
biome
14.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
15.
Evaporation of water from the leaves of a plant gives of purified water to be evaporated.
a)
precipitation
b)
concentration
c)
transpiration
d)
evaporation
16.
The air we breathe is only ____% oxygen.
a)
10
b)
21
c)
78
d)
90
17.
Organisms that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals
a)
Autotroph
b)
Heterotroph
c)
Omnivore
d)
Carnivore
18.
All these organisms share the same
a)
Biome
b)
Population
c)
Community
d)
Habitat
19.
At what stage does this population reach it's carrying capacity on the Demographic Transition Model
a)
1
b)
2
c)
3
d)
4
20.
Bacteria which convert nitrogen gas into bio-available forms of nitrogen, such as ammonia and nitrate, are known as _____
a)
De-nitrification bacteria 
b)
Nitrogen fixing bacteria
c)
Oxidizers
d)
Buffers
21.
In which reservoir is carbon stored the shortest period of time ______
a)
Limestone rocks
b)
The ocean
c)
The atmosphere
d)
Coal
22.
Fungi are a  ________
a)
Autotrophs
b)
Heterotroopers
c)
Decomposers
d)
Primary Consumers
23.

All the green plants that provide the energy for consumers.

a)

consumers

b)

producers

c)

decomposers

d)

herbivores

24.

A diagram that shows the transfer of energy from one organism to another (who is eaten by what).

a)

ecosystem

b)

environment

c)

food chain

d)

food web

25.

A diagram that shows the transfer of energy in an ecosystem by using several food chains.

a)

ecosystem

b)

food web

c)

environment

d)

food chain

26.

When water is heated in the ocean by the sun and turns into water vapor

a)

Condensation

b)

Evaporation

c)

Transpiration

27.

Number 5 in this picture is showing

a)

Precipitation

b)

Condensation

c)

Collection

d)

Evaporation

28.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
29.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
30.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
31.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
32.
What is deforestation?
a)
Clearing Earth's forests on a massive scale
b)
Eating too much vegetables
c)
Going to a forest and pulling weeds
d)
Clearing the five trees in my backyard
33.
Deforestation is caused by
a)
agriculture activities
b)
snakes
c)
banks
d)
schools
34.

Deforestation causes an increase in atmospheric carbon dioxide

a)

true

b)

false

35.
What are the effects of deforestation ?
a)
loss of habitat
b)
increased green house gasses 
c)
soil erosion and flooding
d)
all of the above
36.
Does deforestation contribute to global warming?
a)
No, trees aren't that important
b)
Sometimes because only the cutting down of Maple trees contributes to global warming
c)
No, deforestation adds methane to the atmosphere, which makes the Earth cooler
d)
Yes; less trees means less CO2 is turned into oxygen.
37.

When we create something new out of old materials we_______________

a)

Cycle

b)

Recycle

38.
Where does photosynthesis take place in the plant cell?
a)
Nucleus
b)
Cytoplasm
c)

Chloroplast

d)
Mitochondria
39.
What are the two products of photosynthesis?
a)
Oxygen and Carbon Dioxide
b)

Oxygen and Sugar

c)
Sunlight and Sugar
40.
What is the opposite reaction of photosynthesis called?
a)
Cellular Respiration
b)
Fermentation
c)
Photosynthetic Process
d)
Non-photosynthesis
41.
Pigment in green plants that captures the energy in sunlight is called _______.
a)
Pigment
b)
Chlorophyll
c)
Stomata
d)
Green Thing
42.
What is one of the 3 products of cellular respiration?
a)
Sunlight
b)
Energy
c)
Oxygen
d)
Sugar (Glucose)
43.
The three things plants need are sunlight, water, and CO2 for photosynthesis.
a)
True
b)
False
44.
Why are Respiration and photosynthesis opposites?
a)
Plants and living things trade what they make to what they give away as waste.
b)
They are not opposites, they are the same thing.
c)
Plants only do respiration not photosynthesis.
d)
Animals make their own food which is photosynthesis.
45.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
46.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
47.
What is photosynthesis?
a)
The process in which humans eat their food
b)
When a photographer takes a photo.
c)
To get your pictures from the photo lab.
d)
The process in which plants make their food.
48.
Which of the following structure is where cellular respiration occurs in the cell?
a)
nucleus
b)
cytoplasm
c)
mitochondria
d)
vacuoles
49.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
50.

Which plant organelle transforms light into glucose to use as food?

a)

Mitochondria

b)

Vacuoles

c)

Chloroplasts

d)

Nucleus

51.
Glucose is...
a)
A product of photosynthesis and cellular respiration
b)
A reactant of photosynthesis and cellular respiration
c)
A product of photosynthesis and a reactant of cellular respiration
d)
A reactant of photosynthesis and a product of cellular respiration
52.
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
53.
What gas is released by plants during photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
54.
What are the reactants of photosynthesis?
a)
carbon dioxide and oxygen
b)
water and oxygen
c)
carbon dioxide and water
d)
water and glucose
55.

This is the chemical formula for a molecule of...

a)

Oxygen

b)

Carbon dioxide

c)

Glucose

d)

Water

56.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
57.
Which of the following go through the process of photosynthesis?
a)
bees
b)
algae
c)
humans
d)
mushrooms
58.
What is the name of the simple sugar that is produced in photosynthesis?
a)
Sucrose
b)
Dextrose
c)
Glucose
d)
Lactose
59.
Which plant part absorbs water and nutrients?
a)
Leaf
b)
Stem
c)
Roots
d)
Flower
60.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
reflects green light.
d)
does not absorb violet light.
61.
After intense activity, your muscles feel sore because of 
a)
the accumulation of NAD+
b)
the accumulation of lactic acid 
c)
the accumulation of ATP
d)
the accumulation of carbon dioxide
62.

Which organism go through cellular respiration?

a)

animals

b)

plants

c)

both animals and plants

d)

none

63.

Cellular Respiration occurs in what cell organelle?

a)

chloroplast

b)

cytoplasm

c)

mitochondria

d)

animal

64.

Which molecule is the reactant of Glycolysis?

a)

water

b)

glucose

c)

carbon dioxide

d)

ATP

65.

The Electron Transport Chain is a series of chemical reactions in which energy is transferred to form a large amount of what molecule?

a)

glucose

b)

oxygen

c)

pyruvic acid

d)

ATP

66.

What type of respiration requires oxygen?

a)

Aerobic

b)

Anaerobic

67.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
68.
Which organ excretes carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
69.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
70.

What type of respiration does not require oxygen?

a)

Aerobic

b)

Anaerobic

71.
Which of the following is an example of a renewable natural resource?
a)
Solar power
b)
Crude oil
c)
Coal
d)
Aluminum
72.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
73.

Which of the following are fossil fuels?

a)

Coal, Water, Oil

b)

Oxygen, Coal, Oil

c)

Coal, Oil, Natural Gas

d)

None of these

74.

Why should we conserve fossil fuels?

a)

They are expensive

b)

One day they will run out

75.
The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that
a)
. ecosystems are interconnected and human action can alter ecosystem equilibrium.
b)
recycling programs have failed to conserve biotic resources.
c)
natural processes can alter ecosystem stability.
d)
 direct harvesting practices have led to irreversible destruction of ecosystems.
76.
DDT and other pesticides used over 50 years ago are still affecting the environment today. Scientists have found these substances in recent glacier runoff. Glacier runoff occurs during the summer, when precipitation that has fallen on glaciers during the winter is released. Ice layers from existing glaciers have been analyzed. The results of this analysis show that the concentrations of DDT and other pesticides were highest about 10 years after the use of these substances was banned. This information shows that
a)
DDT and other pesticides cause glacier runoff during the summer.
b)
it takes humans over 50 years to analyze a glacier.
c)
precipitation helps to break down pesticides.
d)
the decision of one human generation may have an impact on future generations.
77.
The diagram shows the carbon cycle.  If many trees are removed from a forest by logging, what is the most immediate effect on the carbon cycle in that forest?
a)
 increase in the rates of decomposition
b)
increase in the rates of atmospheric carbon dioxide
c)
decreased combustion of fossil fuel
d)
 increase production of organic compounds

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