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Bio 9 > Midterms 2021-2022 Ecology > Flashcards

Midterms 2021-2022 Ecology Flashcards

1
Q

True or False:

Like matter, energy is also recycled by living organisms.

A

False

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2
Q

True or False:

Because you are able to cook your own food in a microwave oven, you are a producer.

A

False

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3
Q

True or False:

Photosynthesis provides almost all the energy used by living things on Earth.

A

True

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4
Q

True or False:

Earth’s oxygen comes from photosynthesis.

A

True

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5
Q

True or False:

All cells have chloroplasts.

A

False

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6
Q

True or False:

During the light-dependent reactions, water molecules are made.

A

False

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7
Q

True or False:

Both stages of photosynthesis need sunlight to proceed.

A

False

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8
Q

True or False:

Just like energy, matter is lost as it passes through an ecosystem.

A

False

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9
Q

True or False:

The deep ocean stores carbon for thousands of years or more.

A

True

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10
Q

True or False:

The ocean is a reservoir for water.

A

True

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11
Q

True or False:

The water on earth is billions of years old.

A

True

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12
Q

True or False:

The water cycle takes place on, above, and below Earth’s surfaces.

A

True

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13
Q

True or False:

Carbon cycles quickly between organisms and the atmosphere.

A

True

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14
Q

True or False:

Global warming is caused by too much carbon dioxide in the atmosphere.

A

True

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15
Q

Glucose and _________________ are the products of photosynthesis.

A

Oxygen

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16
Q

Photosynthesis is the process in which energy from ____________________ is transferred to glucose.

A

The sun

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17
Q

Without photosynthesis there would be no _______________________ in the atmosphere.

A

Supply of oxygen

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18
Q

Photosynthesis occurs in the ______________________, and cellular respiration occurs in the ______________________________.

A
  1. Chloroplasts

2. Mitochondria

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19
Q

______________________ make their own food, whereas ______________________ get food by eating other living things.

A
  1. Autotrophs

2. Heterotrophs

20
Q

_______________________ are organelles where photosynthesis takes place.

A

Chloroplasts

21
Q

Stage 1 of photosynthesis is called the _________________________ reactions.

A

Light-Dependent

22
Q

Stage 2 of photosynthesis is called the ____________________________________ reactions.

A

Light-Independent

23
Q

During the first stage of photosynthesis, a molecule of _______________________ gas is released.

A

Oxygen

24
Q

The green pigment, __________________________, absorbs light to start photosynthesis.

A

Chlorophyll

25
Q

During the light-dependent reactions, ______________ and _________________ are produced.

A

O2 and ATP

26
Q

During the light-independent reactions _______________________ is produced.

A

Glucose

27
Q

The ____________________ of matter involves specific interactions between the biotic and abiotic factors in an ecosystem.

A

Recycling

28
Q

A ____________________ holds an element or water for a long period of time.

A

Reservoir

29
Q

Photosynthesis

a. Uses energy in sunlight to make food
b. Uses glucose in sunlight to make food
c. Breaks down glucose to form ATP
d. Uses energy in sunlight to make ATP

A

d. Uses energy in sunlight to make ATP

30
Q

In the food chain grass → grasshopper → snake → hawk, which organisms are consumers?

a. The grass
b. The grass and the grasshopper
c. The hawk
d. The grasshopper, snake, and hawk

A

d. The grasshopper, snake, and hawk

31
Q

Which of the following statements is true about glucose and ATP?

(1) Glucose is made during photosynthesis.
(2) The energy in sunlight is temporarily stored in glucose before it is transferred to ATP.
(3) ATP is the energy-carrying molecule that cells use for energy.
(4) The processes that make ATP and glucose also recycle oxygen in Earth’s atmosphere.
a. Statement 1 only
b. Statements 2 and 3 only
c. Statements 1, 2, and 3 only
d. All 4 statements are correct

A

d. All 4 statements are correct

32
Q

Photosynthesis can be described as the process that…

a. Uses carbon dioxide and water, in the presence of sunlight to produce food (glucose) and oxygen.
b. Uses glucose and oxygen to produce energy for the cell (ATP), releasing carbon dioxide and water.
c. Uses glucose and oxygen, in the presence of sunlight, to make ATP.
d. Uses carbon dioxide and water, in the presence of sunlight, to produce ATP and oxygen

A

a. Uses carbon dioxide and water, in the presence of sunlight to produce food (glucose) and oxygen.

33
Q

Which statement best describes the relationship between a consumer and producer?

a. A lion eating an antelope
b. A caterpillar eating a leaf
c. A snake eating a rat
d. A flower absorbing sunlight

A

b. A caterpillar eating a leaf

34
Q

Which of the following statements are true?

a. The products of photosynthesis are the reactants of cellular respiration.
b. The products of cellular respiration are the reactants of photosynthesis.
c. Both statements are true
d. Neither statement is true.

A

c. Both statements are true

35
Q

The correct chemical formula for photosynthesis (in the presence of sunlight)_ is

a. 6CO2 + 6O2 → C6H12 O6 + 6H2O.
b. 6CO2 + 6H2O → C6H12O6 + 6O2
c. C6H12O6 + 6O2 → 6CO2 + 6H2O
d. C6H12O6 + 6CO2 → 6O 2 + 6H2O

A

b. 6CO2 + 6H2O → C6H12O6 + 6O2

36
Q

Most producers make “food” through the process of

a. Cellular respiration
b. Dehydration synthesis
c. Homeostasis
d. Photosynthesis

A

d. Photosynthesis

37
Q

By the end of the light-dependent reactions, energy from sunlight

a. Has been stored in the chemical bonds of ATP
b. Has been transferred to glucose
c. Has entered the dark reactions
d. Is ready for use in the cell

A

a. Has been stored in chemical bonds of ATP

38
Q

Which statement best describes a biogeochemical cycle?

a. A cycle that recycles chemical elements and water
b. A cycle that continuously cycles chemical elements and water
c. A cycle that continuously cycles chemical elements and water that are needed by organisms
d. A cycle that continuously cycles chemical elements and water that are needed by organisms through an ecosystem

A

d. A cycle that continuously cycles chemical elements and water that are needed by organisms through an ecosystem

39
Q

In terms of carbon and the atmosphere, producers…

a. Remove carbon through photosynthesis and release carbon by cellular respiration
b. Remove carbon through cellular respiration and release carbon by photosynthesis
c. Remove oxygen through photosynthesis but release carbon by cellular respiration
d. Only remove carbon through photosynthesis

A

a. Remove carbon through photosynthesis and release carbon by cellular respiration

40
Q

Which statement is correct?

a. Fossil fuels can store carbon for millions of years, and release carbon when burned
b. Fossil fuels can store carbon for millions of years, and release oxygen when burned
c. Fossil fuels can store oxygen for millions of years, and release carbon when burned
d. Fossil fuels can store nitrogen for millions of years, and release nitrogen when burned

A

a. Fossil fuels can store carbon for millions of years, and release carbon when burned

41
Q

List the names of a 5 level food chain.

A 
Primary Producer
Primary Consumer
Secondary Consumer
Tertiary Consumer
Decomposer
42
Q

In one sentence, describe what happens during the light-dependent reactions.

A

The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP.

43
Q

Discuss why photosynthesis and cellular respiration can be described as a cycle.

A

The products of one process are used as the reactants for the other. Photosynthesis produces carbohydrates from carbon dioxide and water, incorporating light energy into the bonds of the carbohydrates. Cellular respiration, on the other hand, releases energy from the bonds of carbohydrates, producing carbon dioxide and water.

44
Q

Why is matter not lost as it passes through an ecosystem?

A

It’s recycled instead.

45
Q

What is a biogeochemical cycle?

A

Chemical elements and water that are needed by organisms continuously recycle in ecosystems that pass through biotic and abiotic components of the biosphere.

46
Q

What is a reservoir? Give an example.

A

A storage site.

Ex. Ocean

Bio 9 (11 decks)

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