Photosynthesis Flashcards

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Questions and Answers

Plants, algae, and some bacteria capture ______

solar energy

The chemical reactions driven by solar energy require _____

carbon dioxide and water

During photosynthesis, plants make ____

carbohydrates

Where does the production of carbohydrates in a plant take place?

in the leaves Signup and view all the answers

Each-rich molecules that organisms use to carry out daily activities are ______

carbohydrates Signup and view all the answers

The process by which a plant uses sunlight to make sugar molecules is called ______

photosynthesis Signup and view all the answers

During which stage of photosynthesis does water split into hydrogen and oxygen?

first stage Signup and view all the answers

Organisms that can make their own food are ____

producers Signup and view all the answers

The process by which most producers make food ____

photosynthesis Signup and view all the answers

Photosynthesis occurs in the _____

chloroplast Signup and view all the answers

The _ begin when sunlight is trapped by

light reactions, chlorophyll Signup and view all the answers

This energy is used to split ___ into hydrogen and oxygen

water Signup and view all the answers

The _____ is released from the cell

oxygen Signup and view all the answers

The ___ begin when the hydrogen combines with carbon dioxide

dark reactions Signup and view all the answers

_____ is produced, which supplies the cell with energy

glucose Signup and view all the answers

What is the role of chlorophyll in photosynthesis?

allows plants to absorb light Signup and view all the answers

What three things do plants need for photosynthesis to occur?

sunlight, CO2, water Signup and view all the answers

Where does a plant get carbon dioxide it needs for photosynthesis?

air through their leaves Signup and view all the answers

Do you think animal cells are able to produce glucose through photosynthesis?

False Signup and view all the answers

What is chlorophyll?

energy for photosynthesis and gives color to plants Signup and view all the answers

Write the chemical equation for the overall process of photosynthesis.

6CO2 + 6H2O ---> C6H12O6 + 6O2 Signup and view all the answers

How do the meanings of 'photo-' and 'synthesis' tell you what happens during photosynthesis?

it tells me that during photosynthesis because of plants needing light they are put together and work together for sugar Signup and view all the answers

How are the meanings of prefix 'chloro-' and suffix '-phyll' related to chlorophyll?

The meanings are related to chlorophyll because chlorophyll gives the leaves the color green. Signup and view all the answers

What is photosynthesis?

a process in which sunlight energy is used to make glucose Signup and view all the answers

What are chloroplasts and where are they found?

an organelle found in the leaves of green plants Signup and view all the answers

What are the two main functions of chloroplasts?

produce food and storing food Signup and view all the answers

Why do most leaves appear green?

because of chlorophyll Signup and view all the answers

What is the primary pigment found in the chloroplast?

chlorophyll Signup and view all the answers

Where does the water come from?

the ground Signup and view all the answers

Where does the water enter the plant?

roots Signup and view all the answers

Name 3 sources of CO2.

air, factories, cars Signup and view all the answers

What type of energy does the plant use to convert CO2 and H2O into sugar?

sunlight energy Signup and view all the answers

What is produced in photosynthesis?

glucose and oxygen Signup and view all the answers

What is the glucose used for?

used by the plants for energy and growth Signup and view all the answers

What is the oxygen used for?

to release into the air for us to breathe Signup and view all the answers

Describe, using scientific terms, how plants turn sunlight into energy.

plants produce glucose due to photosynthesis, then glucose gives the plant energy or stores it in the leaves. Light then is used from the sun. Signup and view all the answers

Study Notes

Overview of Photosynthesis

Photosynthesis is the process where plants, algae, and some bacteria use sunlight to synthesize sugars.
Key reactants include carbon dioxide (CO2) and water (H2O).
Carbohydrates, primarily glucose, are the main products of photosynthesis.

Process of Photosynthesis

Photosynthesis occurs in chloroplasts, the organelles located in plant leaves.
The first stage involves light reactions where sunlight is absorbed by chlorophyll, splitting water into hydrogen and oxygen.
Oxygen is released as a byproduct during the light reactions.

Stages of Photosynthesis

Dark reactions (Calvin Cycle) utilize hydrogen and carbon dioxide to create glucose, the primary energy source for the plant.
The overall reaction can be summarized with the equation: 6CO2 + 6H2O → C6H12O6 + 6O2.

Chlorophyll’s Role

Chlorophyll is crucial for absorbing light and gives leaves their green color.
The prefix "chloro-" means green, indicating its connection to the photosynthetic process.

Environmental Requirements

For photosynthesis, plants require sunlight, carbon dioxide (obtained from air through leaves), and water (absorbed through roots).
Common sources of CO2 include air, factories, and vehicles.

Functions and Importance

Glucose produced during photosynthesis is used by plants for energy, growth, or stored for later use.
Oxygen produced is essential for respiration in animals and humans.

Connection to Energy

Sunlight energy is converted into chemical energy in the form of glucose through a combination of light and dark reactions.
Photosynthesis allows plants to function as producers within ecosystems, supporting life by providing energy.

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Description

Test your knowledge on photosynthesis with these flashcards! Explore key terms and definitions crucial for understanding how plants, algae, and certain bacteria utilize solar energy to produce carbohydrates. Perfect for students studying biology or environmental science.