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chemical change

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Date created

Mar 14, 2020

Cards (27)

Section 1

(27 cards)

chemical change

Front

A change in matter that produces one or more new substances

Back

Describe the chemical change that happens during photosynthesis.

Front

carbon dioxide + water ----sunlight----- glucose + oxygen

Back

What does photosynthesis take in?

Front

energy from the sun

Back

What does photosynthesis TAKE IN

Front

It begins with the water and carbon dioxide that plants take in.

Back

Cellular respiration occurs in what structure of cells?

Front

Mitochondria

Back

law of conservation of mass

Front

Matter is not created nor destroyed in any chemical or physical change

Back

If photosynthesis occurs in what structure of plants?

Front

In the chloroplasts

Back

Narrative of cellular respiration chemical change:

Front

Sugar is broken down to form carbon dioxide, which is respired as a gas. In this reaction, the hydrogen in sugar combines with oxygen to form water. The energy that is released is stored temporarily in another molecule called ATP (adenosine triphosphate), which delivers and transfers the energy where it is needed.

Back

What is the formula for the chemical change that happens during photosynthesis.

Front

6H2O + 6CO2 + light → C6H12O6 (glucose) + 6O2

Back

Law of conservation examples:

Front

candy to smashed candy / computer to smashed computer * ice to water to steam = matter is not created or destroyed; they just changed

Back

How does photosynthesis demonstrate the law of conservation?

Front

The AMOUNT of oxygen and carbon atoms released by photosynthesis are EXACTLY EQUAL to the atoms of these material contained in carbon-dioxide converted. In this way photosynthesis has conserved the mass or material, and in this way followed the law of conservation of mass.

Back

What does cellular respiration release

Front

Respiration releases Carbon Dioxide (CO2 and water both of which are released into the air during respiration.

Back

What organisms perform photosynthesis

Front

Most plants, most algae, and cyanobacteria perform photosynthesis;

Back

What does cellular respiration take in?

Front

energy from chemicals (foods)

Back

How does cellular respiration demonstrate the law of conservation?

Front

The AMOUNT of carbon-dioxide atoms released by respiration are EXACTLY EQUAL to the atoms of these materials contained in the oxygen and carbon converted. In this way respiration has conserved the mass or material and in this way followed the law of conservation of mass.

Back

What does photosynthesis release?

Front

Plants release oxygen: The need water and carbon dioxide (CO2) to create their food, grow and release excess OXYGEN into the air.

Back

cellular respiration

Front

Back

What organisms perform cellular respiration?

Front

all living things

Back

Mitochondria

Front

Mitochondria (cellular respiration)

Back

Review: what happens to atoms in a chemical change?

Front

The atoms that make up the original substance are REGROUPED into different molecules and NEW SUBSTANCES that have different properties of those reactants.

Back

Characteristic of a physical change

Front

A physcial change is a change that affects the physical appearance of matter: (eg. from solid to liquid, liquid to a gas, ) change in color or change in crystal shape

Back

chloroplast (in plants)

Front

Chloroplast (photosynthesis)

Back

Narrative of photosynthesis chemical change

Front

Light energy is captured and transformed into chemical energy in the form of the food sugar. Carbon dioxide and water are combined and their atoms are rearranged to form a sugar molecule. The bonds within the sugar molecule store the energy obtained from light. Oxygen from water is released as a by-product in this process.

Back

What do photosynthesis and cellular respiration both take in?

Front

energy

Back

What is the relationship between photosynthesis and cellular respiration?

Front

Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2).

Back

photosynthesis

Front

Back

Describe the chemical change that happens during cellular respiration

Front

sugar + oxygen -> carbon dioxide + water + energy

Back