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Biology Y9 > Photosynthesis > Flashcards

Photosynthesis Flashcards

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1
Q

What is photosynthesis

A

The process in which plants make carbohydrate as food using light energy

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2
Q

What is the equation of photosynthesis

A

Carbon Dioxide+ Water with the presence of chlorophyll and light energy= Glucose+ Oxygen

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3
Q

How does Carbon Dioxide enter the leaf

A

Carbon Dioxide diffuses from the atmosphere into the leaf through the stomata

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4
Q

How does water enter the leaf

A

Water is take in by the roots from the soil and travel up the stem and into the leaf through the xylem

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5
Q

What is Chlorophyll

A

Chlorophyll is the main pigment that absorbs light. It is found in a cell structure called the chloroplast. Chlorophyll gives the green colour of the leaf.

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6
Q

What is the carbohydrate

A

The carbohydrate made is glucose but is stored as starch. The carbohydrate is transported to different parts of the plant as sucrose through phloem

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7
Q

What is oxygen

A

Oxygen is the by-product and it diffuses out of the leaf through the stomata

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8
Q

How do you investigate that light is needed for photosynthesis

A

ANSWER IN NOTEBOOK

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9
Q

How do you investigate if carbon dioxide is needed for photosynthesis

A

ANSWER IN NOTEBOOK

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10
Q

How do you investigate if light is needed for aquatic plants to photosynthesise

A

ANSWER NOTEBOOK

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11
Q

How do you investigate if chlorophyll in needed for photosynthesis

A

ANSWER IN NOTEBOOK

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12
Q

What is a variegated leaf

A

A leaf with different colour zones (White and green)

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13
Q

What does Glucose contain

A

Carbon,Nitrogen and Oxygen

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14
Q

How are minerals recycled

A

When an animal that has eaten the plants dies, they are decomposed. Returning the minerals to the soil

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15
Q

What are the main minerals

A

Nitrogen, Phosphorus and Potassium

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16
Q

What is nitrogen needed for

A

It is needed for production of proteins and chlorophyll, leaf development

17
Q

What is phosphorus needed for

A

It is needed for photosynthesis, respiration,root development and production of DNA

18
Q

What is potassium needed for

A

It is needed for fruit and flower development

19
Q

What are the symptoms of deficiency for nitrogen

A

stunted growth and yellow leaves

20
Q

What are the symptoms of deficiency for phosphorus

A

poor growth

21
Q

What are the symptoms of deficiency for potasium

A

yellow leaves and abnormal growth

Biology Y9 (8 decks)

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