Algae -Multiple Choice Questions Quiz

Question 1: Which of the following is a characteristic feature of algae?

(a) Presence of roots, stems, and leaves
(b) Ability to conduct photosynthesis
(c) Production of flowers and fruits
(d) Heterotrophic nutrition

Question 2: What is the primary pigment responsible for the green color in most algae?

(a) Chlorophyll a
(b) Chlorophyll b
(c) Carotenoids
(d) Phycobilins

Question 3: Which of the following is a unicellular green algae commonly found in freshwater ponds and aquariums?

(a) Chlorella
(b) Kelp
(c) Spirogyra
(d) Ulva

Question 4: What is the primary habitat of marine algae commonly known as seaweeds?

(a) Forests
(b) Deserts
(c) Oceans and seas
(d) Mountains

Question 5: Which type of algae is a rich source of carrageenan and is used in food and pharmaceutical industries?

(a) Green algae
(b) Brown algae
(c) Red algae
(d) Blue-green algae

Question 6: What is the name of the process in some algae where cells from two different mating types fuse to form a zygote?

(a) Meiosis
(b) Mitosis
(c) Fertilization
(d) Binary fission

Question 7: Which of the following is a harmful algal bloom characterized by rapid population growth and toxin production?

(a) Red tide
(b) Green tide
(c) Brown tide
(d) Blue-green tide

Question 8: What is the primary role of algae in aquatic ecosystems?

(a) Providing habitat for fish
(b) Reducing water pollution
(c) Acting as a food source for herbivores
(d) Preventing algal blooms

Question 9: Which group of algae is commonly referred to as 'diatoms' and is known for their intricate silica cell walls?

(a) Green algae
(b) Brown algae
(c) Red algae
(d) Golden algae

Question 10: Which algal group includes the giant kelp, which forms underwater forests in cold, nutrient-rich waters?

(a) Green algae
(b) Brown algae
(c) Red algae
(d) Diatoms

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Results:

Total score: /10

Answer key:

Question 1: b

Question 2: a

Question 3: a

Question 4: c

Question 5: c

Question 6: c

Question 7: a

Question 8: c

Question 9: d

Question 10: b