Photosynthesis Quiz

what does a thylakoid does during photosynthesis?

enables the light-dependent reactions to occur

Which process could cause ice to form a thin layer over a lake?

freezing

What does the grana do?

function in the light reactions of photosynthesis

What substance, produced during photosynthesis, provides food for plants and animals in a food web?

glucose

What are the products of photosynthesis?

glucose and oxygen

What type of bond between water molecules pulls them into this tight ball?

hydrogen bond

What type of bond holds more than one molecule together?

hydrogen bond

Which type of bond forms between water molecules?

hydrogen bonds

Photosynthesis

is the process by which green plants, algae, and some bacteria capture light energy to form simple sugars using water and carbon dioxide and release oxygen gas as a byproduct

Which part of the plant contains the most cells specialized for photosynthesis?

leaves

In which ways is photosynthesis important to life on Earth?

makes food for all organisms, adds oxygen to the atmosphere, is a source of medicines and fibers, is a source of building materials, provides animal habitat

What component of Earth's atmosphere exists entirely as a result of photosynthesis?

oxygen gas

each atom in a water molecule contains

protons and neutrons in the nucleus, electrons outside the nucleus

Chlorophyll a absorbs

red, some blue and purple

Light Independent Reactions

set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin cycle

light-dependent reactions

set of reactions in photosynthesis that use energy from light to produce ATP and NADPH

Sublimation

solid to gas

Granum

stack of thylakoids

What part of the chloroplast does Light-independent reactions take place

stroma

Photosynthesis is important to living organisms because it is

the foundation of most food chains.

evaperation

the prosses where a liquid changes into a gas

water molecule contains

two hydrogen atoms and one oxygen atom

Chloraphyll absorbs

visible rays and captures their energy

In the processes of photosynthesis, what supplies the hydrogen (H) used in the formation of glucose?

water

Which reactant in the photosynthesis equation is the source of hydrogen for sugar molecules?

water

Percipitation

water that falls from the atmosphere to the Earth as rain, sleet , or snow

surface run off

water that stays on top of the land and flows back to a water source.

ATP

(adenosine triphosphate) main energy source that cells use for most of their work

How are the reactants represented in the chemical equation for photosynthesis?

6CO2 + 6H2O

Photosynthesis equation

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

Thylakoid

A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy.

polar molecule

A molecule that has electrically charged areas.

Grana

A stacked portion of the thylakoid membrane in the chloroplast.

Chlorophyll

Absorbs light energy. Pigment that gives a plant its green color. Found in the chloroplast

NADPH

An electron carrier involved in photosynthesis. Light drives electrons from chlorophyll to NADP+, forming NADPH, which provides the high-energy electrons for the reduction of carbon dioxide to sugar in the Calvin cycle.

What is the word equation for photosynthesis?

Carbon dioxide + water -> glucose + oxygen

what occurs during the process represented by the photosynthesis equation?

Carbon dioxide and water are combined in a series of reactions, Sunlight provides energy for the reactions, Sunlight provides energy for the reactions, The energy from sunlight is stored in the glucose

Which parts of photosynthesis occur in the stroma of the chloroplast?

Carbon dioxide is used to build sugars

Where does photosynthesis occur?

Chloroplast

What type of bond holds the hydrogen and oxygen atoms together in a water molecule?

Covalent bond

Which scientist showed that plants use red and blue light in photosynthesis?

Engelmann

Infiltration

Flow of water from the land surface into the subsurface.

Condensation

Gas to liquid

why is the process of photosynthesis is important to live on Earth?

Green plants use photosynthesis to remove oxygen gas from the atmosphere and replenish the earth's carbon dioxide.

Which scientist demonstrated that the green parts of plants absorb carbon dioxide and release oxygen only in sunlight?

Jan Ingenhousz

What gas is produced during photosynthesis and released into the atmosphere?

Oxygen

Evapotranspiration

The combined amount of evaporation and transpiration

groundwater discharge

The flow or pumping of water from an aquifer

Stroma

The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water.

Snowmelt runoff to streams

The movement of water as surface runoff from snow and ice to surface water.

What is the relationship of photosynthesis and energy?

The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.

Which parts of photosynthesis occur in the thylakoid membranes of the grana?

The suns energy is captured, oxygen is produced, energy is transferred to ATP

What part of the chloroplast does Light-dependent reactions take place

Thylakoids

What part of the chloroplast is the Sun's energy absorbed

Thylakoids

Which scientist thought he proved that plants obtain nutrients from water rather than soil?

Van Helmont

Which stores groundwater?

aquifer

Chlorophyll b absorbs

blue, some orange and red

What are the reactants of photosynthesis?

carbon dioxide and water

Name the plant cell organelle where photosynthesis occurs.

chloroplasts

Which bonds are found inside a water molecule, between hydrogen and oxygen?

covalent bonds