Fertilisation in flowering plants practice exercise 4

Question 1

A farmer sprays pesticide on his tomato plants during peak flowering season. Later, he observes low fruit production. What is the most likely explanation?

Question 2

A farmer sprays pesticide on his tomato plants during peak flowering season. Later, he observes low fruit production. What is the most likely explanation? (1 mark)

Question 3

A farmer sprays pesticide on his tomato plants during peak flowering season. Later, he observes low fruit production. What is the most likely explanation? (1 mark)

Question 4

A learner examines a flower and sees that the pollen tube did not grow into the ovary. What will most likely happen?

Question 5

A learner examines a flower and sees that the pollen tube did not grow into the ovary. What will most likely happen? (1 mark)

Question 6

A learner examines a flower and sees that the pollen tube did not grow into the ovary. What will most likely happen? (1 mark)

Question 7

A learner observes that not all ovules in a maize cob developed into kernels after pollination. What could be the reason?

Question 8

A learner observes that not all ovules in a maize cob developed into kernels after pollination. What could be the reason? (1 mark)

Question 9

A learner observes that not all ovules in a maize cob developed into kernels after pollination. What could be the reason? (1 mark)

Question 10

A passion fruit formed but had no seeds inside. What is the most likely cause?

Question 11

A passion fruit formed but had no seeds inside. What is the most likely cause? (1 mark)

Question 12

A passion fruit formed but had no seeds inside. What is the most likely cause? (1 mark)

Question 13

A student notices that flowers with damaged stigma never form seeds. What is the best explanation?

Question 14

A student notices that flowers with damaged stigma never form seeds. What is the best explanation? (1 mark)

Question 15

A student notices that flowers with damaged stigma never form seeds. What is the best explanation? (1 mark)

Question 16

During a prolonged rainy season, a farmer notices that his maize plants are flowering but producing fewer cobs than usual. Which of the following best explains how rain affects fertilisation?

Question 17

During a prolonged rainy season, a farmer notices that his maize plants are flowering but producing fewer cobs than usual. Which of the following best explains how rain affects fertilisation? (1 mark)

Question 18

During a prolonged rainy season, a farmer notices that his maize plants are flowering but producing fewer cobs than usual. Which of the following best explains how rain affects fertilisation? (1 mark)

Question 19

Many commercial banana varieties produce fruits but have no seeds. What explains this, even though flowers appear and fruits develop?

Question 20

Many commercial banana varieties produce fruits but have no seeds. What explains this, even though flowers appear and fruits develop? (1 mark)

Question 21

Many commercial banana varieties produce fruits but have no seeds. What explains this, even though flowers appear and fruits develop? (1 mark)

Question 22

A plant has a long stigma that extends well beyond its short stamens. Despite having both reproductive parts, the plant fails to form seeds. What best explains this?

Question 23

A plant has a long stigma that extends well beyond its short stamens. Despite having both reproductive parts, the plant fails to form seeds. What best explains this? (1 mark)

Question 24

A plant has a long stigma that extends well beyond its short stamens. Despite having both reproductive parts, the plant fails to form seeds. What best explains this? (1 mark)

Question 25

In a laboratory study, a flower with curled and shortened stamens failed to produce seeds even after insects visited it regularly. What is the most likely reason?

Question 26

In a laboratory study, a flower with curled and shortened stamens failed to produce seeds even after insects visited it regularly. What is the most likely reason? (1 mark)

Question 27

In a laboratory study, a flower with curled and shortened stamens failed to produce seeds even after insects visited it regularly. What is the most likely reason? (1 mark)

Question 28

A tomato farmer in Kirinyaga sets up bee hives around the farm. What is the most likely reason for this?

Question 29

A tomato farmer in Kirinyaga sets up bee hives around the farm. What is the most likely reason for this? (1 mark)

Question 30

A tomato farmer in Kirinyaga sets up bee hives around the farm. What is the most likely reason for this? (1 mark)

Quiz Questions (30 questions)