MCQ on Cactus (Cacti) Plants

MCQ on Cactus (cacti) Plants

Read mcq on cactus (cacti) plants. Topics: General description, commercial species and varieties, cultivation practice.

Also read: MCQ on Succulent Plants

MCQ on cactus plants

Question 01. Which is the most conmon culinary species?

(a). Indian fig opuntia
(b). Erect prickly pear
(c). Both a and b
(d). None of the above

Question 02. What is the scientific name of moon cactus?

(a). Carnegiea gigantea
(b). Opuntia microdasys
(c). Echinocactus grusonii
(d). Gymnocalycium mihanovichii

Question 03. Which is the water saving mechanism in cactus plant?

(a). Rhizosheath
(b). Rhizosphere
(c). Rhizobium
(d). None of the above

Question 04. Cactus is a rich source of which of these vitamins?

(a). Vitamin C
(b). Vitamin B
(c). Vitamin K
(d). All of the above

Question 05. Cactus spines are modification of

(a). Stem
(b). Branches
(c). Leaves
(d). None of the above

Also read: MCQ on Xeriscaping

Question 06. What type photosynthesis in a cactus plant?

(a). Calvin cycle
(b). Hatch-Slack pathway
(c). Both a and b
(d). Crassulacean acid metabolism

Question 07. By what name is the dragon fruit known as?

(a). Pineapple peach
(b). Strawberry pear
(c). Nectarine pear
(d). None of the above

Question 08. Which of the following belongs to sour pitaya?

(a). Stenocereus
(b). Selenicereus
(c). Both a and b
(d). None of the above

Question 09. Which of the following variety/species of dragon fruit is yellow skinned?

(a). Selenicereus costaricensis
(b). Selenicereus undatus
(c). Selenicereus megalanthus
(d). None of the above

Question 10. Which of the following part of cacti is responsible for photosynthesis?

(a). Stem
(b). Leaves
(c). Spines
(d). All of the above

MCQ on cacti plants

Question 11. Which of the following is the major pollinating agent in prickly pear?

(a). Bees
(b). Flies
(c). Dragonflies
(d). Flying ants

Question 12. Which of the following is a spineless variety of opuntia?

(a). Aissa
(b). Moussa
(c). Both a and b
(d). None of the above

Question 13. Which of the following is a thorny variety of opuntia?

(a). Moussa
(b). Achefri
(c). Both a and
(d). None of the above

Question 14. Saguaro flowers bloom for less than

(a). 50 hours
(b). 24 hours
(c). 70 hours
(d). None of the above

Question 15. Which is a tree like species of cactus?

(a). Echinocactus grusonii
(b). Blossfeldia liliputiana
(c). Both a and b above
(d). Carnegiea gigantea

Question 16. Which is the origin place of Cereus hildmannianus?

(a). North America
(b). South America
(c). Africa
(d). Arabian Peninsula

Question 17. What is the propagation method in cacti plants?

(a). Cutting
(b). Budding
(c). Seeds
(d). All of the above

Question 18. Which is a scrambling shrub?

(a). Ferocactus echidne
(b). Ferocactus pilosus
(c). Barbados gooseberry
(d). Rhipsalis paradoxa

Question 19. Which is an infrequent pest of cacti?

(a). Mealybug
(b). Scale insects
(c). Whiteflies
(d). None of the above

Question 20. Cactus is sensitive to

(a). Over watering
(b). Dry spells
(c). Both a and b
(d). None of the above

Answer Key

1.a6.d
2.d7.b
3.a8.a
4.a9.c
5.c10.a
11.a16.b
12.c17.d
13.b18.c
14.b19.c
15.d20.a

Explanations

01. Indian fig opuntia is the most common culinary species.

02. The scientific name of moon cactus is Gymnocalycium mihanovichii.

03. Rhizosheath is the water saving mechanism in cactus plant

04. Cactus is the rich source of vitamin C.

05. Cacti spines are the modification of leaves.

06. Crassulacean acid metabolism is the photosysthesis mechanism in cacti plants

07. Dragon fruit is known as strawberry pear.

08. Stenocereus is sour pitaya and Selenicereus is sweat pitaya.

09. Selenicereus megalanthus is yellow skinned dragon fruit.

10: Stem is responsible for photosynthesis.

11: Bees are the major pollinating agent in prickly pear

12: Aissa an moussa are spineless opuntia.

13: Achefri is thorny opuntia.

14: Saguaro flowers bloom for less than 24 hrs.

15: Carnegiea gigantea is tree like species of cactus.

16: South America is the origin place of
Cereus hildmannianus.

17: Propagation method in cactus are as follows:

Grafting
Budding
Seeds

18: Barbados gooseberry is a scrambling shrub.

19: Whiteflies are the infrequent pest of cacti.

20: Cactus is sensitive to over-watering

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