Unit 7 Photosynthesis Review Sheet Quiz

Unit 7 Photosynthesis Review Sheet Quiz

Quiz on review sheet material on Photosynthesis Science grade 8 12B By Kylie Photo URL: http://www.earthtimes.org/newsimage/photosynthesis-dream-renewable-energy_1_02842012.jpg

published on May 28, 201313 responses 0

Give 2 Ways that Sugar and Starch are Similar

They are both food and they both require sunlight
They are both carbohydrates and they are both produced by
plants
They are both glucose sugars and they fuel and store fuel for
plants
They are both poisonous and can both be found in the leaves
of the plant

What are the three products created after analyzing sugar?

Select the three correct answers
Carbon Monoxide
Carbon
Carbon Dioxide
Oxygen
Ash
Water
Tree Oils
Glucose
Salad Dressing

What are the three ELEMENTS found in a carbohydrate?

Select the three correct answers
Glucose
Oxygen
Shampoo
Water
Hydrogen
Tea Tree Oils
Charcoal
Carbon
A solid, a liquid, and a gas
Powders
Iron

What is the specific name of the simple carbohydrate that plants make?

Carbohydrates
Sugar
Glucose
Carbon
Chlorophyll
Oxygen

What is the chemical formula of the simple carbohydrate that plants make?
(In the correct order)

C6 H12 O6
C2 H4 O2
C12 H6 O12
H6 C12 O6
H2 C4 O2
H12 C6 O12
O6 H12 C6
O2 H4 O2
O12 H6 O12

How does sunlight affect starch formation in leaves?

Plants can't absorb sunlight without starch
Starch and sunlight have nothing to do with each other,
because sunlight helps a plant produce glucose, and glucose
and starch (though they may sound similar) are very different
As sunlight decreases starch increases
As sunlight increases starch increases
As sunlight increases starch decreases
All of the above
None of the above
This isn't a question we will be tested on... How are we
supposed to know?!

How does chlorophyll affect starch formation in the leaves?

Select the two correct answers
Starch helps plants absorb sunlight
Chlorophyll is required for plants to be able to absorb sunlight
Chlorophyll and starch aren't actually related because
chlorophyll helps plants absorb sunlight which they need for
photosynthesis and starch is a waste product slightly relevant
to photosynthesis, but without chlorophyll starch would still be
produced, and without starch chlorophyll would still be
produced so they don't directly affect one another.
Chlorophyll helps starch grow faster. If plants didn't have
chlorophyll they wouldn't make enough starch and they'd die
Plants are green
Plants need sunlight to produce starch
Plants need sunlight (which starch helps them absorb) to
produce chlorophyll

What happened in the pink areas of the leaves we studied in class?

They made less starch than the green areas of the leaves
because chlorophyll is required to absorb sunlight and sunlight
is required to make starch and chlorophyll is green so the
green areas of the leaves are high in chlorophyll and the pink
areas aren't.
They made the same amount of chlorophyll because the pink
areas are full of a different pigment called Carotene and
Carotene helps plants absorb sunlight just as well as
Chlorophyll does and sunlight is required for starch to be
produced. Plants with both Carotene and Chlorophyll
(pink/orange, and green) produce a lot of starch and absorb a
lot of sunlight.
They made more starch than the green areas of the leaves
because pink is a low energy color and can absorb sunlight
easily

What are three things all plants produce?

Select the three correct answers
gasoline
shampoo
oxygen
sugar
chlorophyll
carbon dioxide
starch
monochromatic gas
pigments

Of the three things all plants produce, one of them is a gas. What is that gas?

Carbon monoxide
Water
Carbon
Helium
Chloroplast
Oxygen
Carbon dioxide
Nicaragua

How do we know that plants produce the gas Oxygen?
(there should be 5 right answers)

Select the five correct answers
We conducted the same experiment as mentioned in the
answer about BTB except it was with Iodine, because everyone
knows that BTB is the chemical we used for the cheese puff
experiment and not the chemical we used for the
photosynthesis experiment
A student in our class blew bubbles (of carbon dioxide) into the
BTB turning it green
We tested this using the chemical Phenol Red
We tested this using the chemical Iodine
Phenol Red turns orange when mixed with oxygen
We put the green BTB into a closed jar with another plant, and
over time the BTB turned blue, meaning that the plant absorbed
the Carbon dioxide and produced oxygen
Phenol Red turns pink when mixed with carbon dioxide
BTB turns blue when mixed with oxygen
Iodine turns green when mixed with carbon dioxide
A student in our class blew bubbles (of carbon dioxide) into the
Iodine turning it green
BTB turns green when mixed with carbon dioxide
Iodine turns purple when mixed with oxygen
We tested this using the chemical BTB
A student in our class blew bubbles (of carbon dioxide) into the
Phenol Red turning it pink

Write the word equation for photosynthesis in plants

Water + Carbon Dioxide -> Oxygen + Glucose
Water + Oxygen -> Carbon Dioxide + Glucose
Water + Chlorophyll -> Oxygen + Starch

Write the balanced chemical equation for photosynthesis in plants

6H2O + 6O2 -> 6CO2 + C6H12O6
6H2O + 6CO2 -> 6O2 + C6H12O6
6H2O + 6HO2 -> C6H12O6 + 6CO2

What is the food produced by plants?

What is the energy absorbed by leaves?

What is the gas produced by plants?

What is absorbed by plant roots to make food?

What is the cell structure where food is made?

What is the gas taken in by plants to make food?

Vocab: To break down a compound into elements that make it up

Vocab: A compound that consists of Carbon, Water, and CO2

Vocab: Green pigment found in chloroplasts in plant cells

Vocab: The process in which plants absorb sunlight and use it to make food

Vocab: A liquid that turns blue for oxygen and green for carbon dioxide