Energy in Cells - Photosynthesis

Question 1

which factors increase the rate of plant growth?

Answer 1

-> increase rate of photosynthesis (more glucose production)

Question 2

how is the rate of photosynthesis increased?

Answer 2

• increased temp
• increased reactants : co2 and water
• increased light intensity

Question 3

what is the role of fertilisers?

Answer 3

• increase plant growth / yield

Question 4

how to fertilisers increase plant growth?

Answer 4

• using nitrates, phosphates, potassium and magnesium

Question 5

how do mineral ions enter the plant?

Answer 5

• through active transport - a low to high concentration

Question 6

what are the adaptations of root hair cells to perform active transport?

Answer 6

large SA

Question 7

which mineral ion is used to make proteins and amino acids?

Answer 7

nitrate ions

Question 8

what are the deficiency symptoms of nitrate ions?

Answer 8

• stunted growth
• slightly yellow

Question 9

which mineral ion is used to create DNA and cell membranes?

Answer 9

• phosphate ions

Question 10

what are the deficiency symptoms for phosphate ions

Answer 10

• poor root growth
• younger leaves turn purple

Question 11

which mineral ion is used to make chlorophyll?

Answer 11

magnesium ions

Question 12

what are the deficiency symptoms of magnesium ions?

Answer 12

• leaves turn yellow

Question 13

which mineral ion is used to create enzymes?

Answer 13

potassium ions

Question 14

what are the deficiency symptoms of potassium ions?

Answer 14

• leaves turn yellow with dead spots