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Biology Lab 4 > Photosynthesis > Flashcards

Photosynthesis Flashcards

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1
Q

What is the photosynthesis equation?

A

H20+co2+soil—-light energy———C6H12O6+O2

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2
Q

What is photosynthesis?

A

Is the process by which plants use sunlight water and carbon dioxide to create oxygen and energy in the form of sugar

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3
Q

What is the key to photosynthesis?

A

Chlorophyll

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4
Q

How does chlorophyll work in plants?

A

This large and complex molecule has electrons that become activated when light shines on it

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5
Q

What are the different forms energy exists?,

A

Heat, light, electrical, chemical, and mechanical energy

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6
Q

What activates the electrons in the chlorophyll?

A

The electrons in the chlorophyll are activated by light, and this electron energy is used to make organic molecules (new plant tissue)

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7
Q

First law of thermodynamics?

A

The amount of energy does not change, only the forms of energy changes

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8
Q

Second law of thermodynamics

A

Heat is always produced whenever one forms of energy is changed into another form

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9
Q

A mother deffenition for photosynthesis?

A

Photosynthesis is the transformation of light energy into chemical energy.

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10
Q

How is the energy of plants first converted?

A

Energy of sun is first converted into the chemical energy of plants.

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11
Q

How many units of sun does photosynthesis require?

A

Photosynthesis requires about 100 units of sun energy to produce one unit of sugar energy.

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12
Q

How do you call animals that eat plants?

A

Herbivores

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13
Q

How do you call the animals that eat herbivores?

A

First carnivore

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14
Q

How do you call the animal that eats first carnivore animals?

A

Second carnivore

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15
Q

What is the energy conversion efficiency?

A

10%

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16
Q

Where does carbon come from?

A

It comes from the air

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17
Q

Where does the hydrogen and glucose come from

A

Plants make sugar by using energy from sunlight to transform carbon dioxide a gas absorbed from the air, and water taken from the ground by roots

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18
Q

What do all multicellular, and unicellular plants have?

A

Chloroplast

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19
Q

What does chloroplast contain?

A

Chloroplast contain chlorophyll and enzymes for the photosynthesis process

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20
Q

What does chlorophyll contain?

A

The chloroplast has many specialized structures. Stacks of discs, called grana, contain the chlorophyll and act like photoelectric cells.

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21
Q

What is the first stage of photosynthesis?

A

When light shines on these grana, the electrons of the chlorophyll are activated. This is the first step of photosynthesis

22
Q

What is the second step of photosynthesis?

A

Involves the building of sugar molecules from carbon dioxide and water.

23
Q

When light shines on chlorophyll, the light energy is transformed into….

A

Chemical energy

24
Q

How do scientist call the light reactions of photosynthesis?

A

Dark reactions

25
Q

How do scientist call the synthesis reactions?

A

Light-dependent reactions

26
Q

Wha kind of energy is required to run synthesis reactions?

A

Heat and light energy

27
Q

Where does that energy come from?

A

The sun

28
Q

What the name of the scale of short and long waves?

A

Electromagnetic spectrum

29
Q

How does energy exist?

A

Energy exists as waves

30
Q

Which waves have more energy

A

Short waves

31
Q

Which waves have less energy

A

Long waves

32
Q

How do you call waves shorter than violet light

A

Ultra violet

33
Q

How do you call waves longer than red lights

A

Infra red

34
Q

What is a visible light spectrum

A

Rainbows

35
Q

Which color is the short side of the rainbow?

A

Blue

36
Q

Which color is on the long side?

A

Red

37
Q

Which color is about in the middle?

A

Yellow

38
Q

Which color do you see when you look at plants?

A

Red

39
Q

Which two primary colors do you not see when looking at a plant?

A

Yellow and blue

40
Q

What takes energy

A

Electrons

41
Q

When light activates the electrons of chlorophyll, then those electrons have

A

Less energy

42
Q

What happens to chlorophyll solution when light is shined on it?

A

The chloroplast turned red

43
Q

Where are heavy large substances

A

At the bottom

44
Q

Where are light substances?

A

At the top

45
Q

What is chromotagraphy?

A

Is a very basic chemical process used to separate organic molecules from each other

46
Q

What happens during the process of chromotagraphy?

A

During this process a solvent passes through a sample that has be3n impregnated on a piece of paper

47
Q

If carbon dioxide is removed from the phenolred solution, then what process is going on in the elodea?

A

It won’t perform photosynthesis

48
Q

Is ligth require by the plant during photosynthesis?

A

Yes

49
Q

What is the control?

A

An element that remains unchanged or unaffected by other variables

50
Q

What is the purpose of having a control

A

To compare your answers

Biology Lab 4 (7 decks)

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