Free Quiz-Algae

1. Question

4 point(s)

Which of the following is/are wrong statement(s) for algae?

Algae are chlorophyll bearing, simple, and thalloid.
They are autotrophic and can not be found in marine water.
They can be found in association with fungi as lichens or on animals.
The form and size of a wide variety of algae are generally similar.

(i) and (iii)

Correct Incorrect Correct answer

(ii) and (iv)

Correct Incorrect Correct answer

(ii) only

Correct Incorrect Correct answer

(iii) only

Correct Incorrect Correct answer

2. Question

4 point(s)

Which of the following is not a filamentous form of algae?

Volvox

Correct Incorrect Correct answer

Ectocarpus

Correct Incorrect Correct answer

Spirogyra

Correct Incorrect Correct answer

Ulothrix

Correct Incorrect Correct answer

3. Question

4 point(s)

Which of the following algae are marine and form massive plant bodies?

Spirogyra

Correct Incorrect Correct answer

Volvox

Correct Incorrect Correct answer

Ulothrix

Correct Incorrect Correct answer

Kelps

Correct Incorrect Correct answer

4. Question

4 point(s)

Which of the following types of reproduction are found in algae?

1. Vegetative
2. Asexual
3. Sexual

A,B

Correct Incorrect Correct answer

Only B

Correct Incorrect Correct answer

Only A

Correct Incorrect Correct answer

A, B or C

Correct Incorrect Correct answer

5. Question

4 point(s)

Find the incorrect information given about methods of reproduction in algae.

i	Vegetative	Fragmentation	Each fragment develops into a thallus.
ii	Asexual	Spores	Zoospores-most common.
iii	Sexual	Isogamous	Only flagellated forms present.
iv	Sexual	Anisogamous	Udorina is an example.

i

Correct Incorrect Correct answer

ii

Correct Incorrect Correct answer

iii

Correct Incorrect Correct answer

iv

Correct Incorrect Correct answer

6. Question

4 point(s)

Isogamous condition with the non-flagellated gametes is found in?

Volvox

Correct Incorrect Correct answer

Spirogyra

Correct Incorrect Correct answer

Fucus

Correct Incorrect Correct answer

Udorina

Correct Incorrect Correct answer

7. Question

4 point(s)

Given below are examples of some algae. Find the ones showing different sizes/forms of the two fusing gametes.

Ulothrix
Spirogyra
Udorina
Volvox
Fucus

(i) and (ii) only

Correct Incorrect Correct answer

(iv) and (v) only

Correct Incorrect Correct answer

(iii), (iv) and (v) only

Correct Incorrect Correct answer

(v) only

Correct Incorrect Correct answer

8. Question

4 point(s)

Oogamy is shown by?

Spirogyra
Udorina
Volvox
Fucus

a, b

Correct Incorrect Correct answer

b, c, d

Correct Incorrect Correct answer

b, d

Correct Incorrect Correct answer

c, d

Correct Incorrect Correct answer

9. Question

4 point(s)

Which of the following is not correct for algae?

Some of the freshwater brown and red algae produce a large number of hydrocolloids.
As primary producers, they are the basis of the food cycles of all aquatic animals.
They increase the level of dissolved oxygen in their surroundings.
About one-third of total CO₂fixation on earth is carried out by algae through photosynthesis.

A, D

Correct Incorrect Correct answer

B, C

Correct Incorrect Correct answer

A, B, D

Correct Incorrect Correct answer

B, D

Correct Incorrect Correct answer

10. Question

4 point(s)

Oogamous type of reproduction is seen in?

Nostoc
Fucus
Anabaena
Volvox

(a) and (c)

Correct Incorrect Correct answer

(c) only

Correct Incorrect Correct answer

(b) and (d)

Correct Incorrect Correct answer

(d) only

Correct Incorrect Correct answer

11. Question

4 point(s)

Which algae is not used as food?

Ulothrix

Correct Incorrect Correct answer

Laminaria

Correct Incorrect Correct answer

Sargassum

Correct Incorrect Correct answer

Porphyra

Correct Incorrect Correct answer

12. Question

4 point(s)

Which of the following group(s) of algae produce carrageen?

Chlorophyceae and Rhodophyceae

Correct Incorrect Correct answer

Rhodophyceae only

Correct Incorrect Correct answer

Phaeophyceae and Chlorophyceae

Correct Incorrect Correct answer

Phaeophyceae and Rhodophyceae

Correct Incorrect Correct answer

13. Question

4 point(s)

Which of the following shows isogamy with flagellated gametes?

Spirogyra

Correct Incorrect Correct answer

Udorina

Correct Incorrect Correct answer

Ulothrix

Correct Incorrect Correct answer

Fucus

Correct Incorrect Correct answer

14. Question

4 point(s)

Agar, used to grow microbes and in preparations of ice-creams and jellies, is obtained from?

Gelidium

Correct Incorrect Correct answer

Gracilaria

Correct Incorrect Correct answer

Spirogyra

Correct Incorrect Correct answer

Gelidium and Gracilaria both

Correct Incorrect Correct answer

15. Question

4 point(s)

Which one is wrong about Chlorophyceae?

Commonly called green algae.
May be unicellular, colonial or filamentous.
Dominance of pigments chlorophyll a and b.
The members of Chlorophyceae have chloroplasts of similar shapes.

A

Correct Incorrect Correct answer

B

Correct Incorrect Correct answer

C

Correct Incorrect Correct answer

D

Correct Incorrect Correct answer

16. Question

4 point(s)

Most of the members of Chlorophyceae have one or more storage bodies called (a) located in the (b).

What are (a) and (b) respectively?

Pyrenoids, Golgi bodies

Correct Incorrect Correct answer

Pyrenoids, Cytoplasm

Correct Incorrect Correct answer

Pyrenoids, Chloroplasts

Correct Incorrect Correct answer

Pyrenoids, Mitochondria

Correct Incorrect Correct answer

17. Question

4 point(s)

Pyrenoids contain?

Starch and fat

Correct Incorrect Correct answer

Proteins and starch

Correct Incorrect Correct answer

Fats and proteins

Correct Incorrect Correct answer

Cellulose and fats

Correct Incorrect Correct answer

18. Question

4 point(s)

Green algae store food in the form of?

Proteins

Correct Incorrect Correct answer

Starch

Correct Incorrect Correct answer

Oil droplets

Correct Incorrect Correct answer

All of these

Correct Incorrect Correct answer

19. Question

4 point(s)

Which one of the following is incorrect for reproduction in green algae?

Vegetative reproduction usually takes place by fragmentation.
Asexual reproduction is by flagellated zoospores produced in basidiocarps.
Considerable variation in the type and formation of sex cells in sexual reproduction.
Sexual reproduction may be isogamous, anisogamous, or oogamous.

A

Correct Incorrect Correct answer

B

Correct Incorrect Correct answer

C

Correct Incorrect Correct answer

D

Correct Incorrect Correct answer

20. Question

4 point(s)

Which is a profusely branched brown algae reaching upto a height of 100 metres?

Ectocarpus

Correct Incorrect Correct answer

Kelps

Correct Incorrect Correct answer

Fucus

Correct Incorrect Correct answer

Laminaria

Correct Incorrect Correct answer

21. Question

4 point(s)

Which of the following statement is wrong for Phaeophyceae?

The members of Phaeophyceae are commonly called brown algae.
They are found primarily in fresh-water and some in marine habitats.
They show great variation in size and form.
The vegetative cells have a cellulosic wall usually covered on the outside by a gelatinous coating of algin.

A

Correct Incorrect Correct answer

B

Correct Incorrect Correct answer

C

Correct Incorrect Correct answer

D

Correct Incorrect Correct answer

22. Question

4 point(s)

Which of the following is incorrect regarding pigments present in brown algae?

Chlorophyll a, c

Correct Incorrect Correct answer

Carotenoids

Correct Incorrect Correct answer

Xanthophylls

Correct Incorrect Correct answer

Chlorophyll a, b

Correct Incorrect Correct answer

23. Question

4 point(s)

Brown algae show various shades of brown colour due to the presence of which pigment?

Chl. a, c

Correct Incorrect Correct answer

Phycoerythrin

Correct Incorrect Correct answer

Carotenoids

Correct Incorrect Correct answer

Fucoxanthin

Correct Incorrect Correct answer

24. Question

4 point(s)

In brown algae, food is stored as (a), which may be in the form of (b) or (c).

What are (a), (b), and (c) respectively?

Complex proteins, Mannitol, Laminarin

Correct Incorrect Correct answer

Complex carbohydrates, Amylopectin, Glycogen

Correct Incorrect Correct answer

Complex proteins, Amylopectin, Glycogen

Correct Incorrect Correct answer

Complex carbohydrates, Mannitol, Laminarin

Correct Incorrect Correct answer

25. Question

4 point(s)

The plant body of brown algae is usually attached to the (a) by a (b) and has a stalk known as (c), and a leaf-like photosynthetic organ called (d).

What are (a), (b), (c), and (d) respectively?

Substratum, Holdfast, Stipe, Frond

Correct Incorrect Correct answer

Substratum, Holdfast, Frond, Stipe

Correct Incorrect Correct answer

Holdfast, Substratum, Stipe, Frond

Correct Incorrect Correct answer

Holdfast, Substratum, Frond, Stipe

Correct Incorrect Correct answer

26. Question

4 point(s)

Which is not related to asexual reproduction in brown algae?

Biflagellate zoospores

Correct Incorrect Correct answer

Two unequal laterally attached flagella

Correct Incorrect Correct answer

Two equal laterally attached flagella

Correct Incorrect Correct answer

Pear shaped zoospores

Correct Incorrect Correct answer

27. Question

4 point(s)

Sexual reproduction in brown algae may be?

Isogamous
Anisogamous
Oogamous

III only

Correct Incorrect Correct answer

I, II, or III

Correct Incorrect Correct answer

I and III

Correct Incorrect Correct answer

II Only

Correct Incorrect Correct answer

28. Question

4 point(s)

Which is/are correct statement(s) for sexual reproduction in brown algae?

Sexual reproduction may be isogamous, anisogamous, or oogamous.
The fusion of gametes always takes place in water.
The gametes are pyriform (pear-shaped).
The gametes bear two laterally attached flagella.

IV only

Correct Incorrect Correct answer

I and III

Correct Incorrect Correct answer

II and IV

Correct Incorrect Correct answer

II only

Correct Incorrect Correct answer

29. Question

4 point(s)

Rhodophyceae are called red algae due to the predominance of the red pigment called?

r-fucoxanthin

Correct Incorrect Correct answer

r-phycoerythrin

Correct Incorrect Correct answer

carotenoids

Correct Incorrect Correct answer

xanthophyll

Correct Incorrect Correct answer

30. Question

4 point(s)

The majority of the red algae are (a), with greater concentrations found in the (b) areas.

What are (a) and (b) respectively?

marine, colder

Correct Incorrect Correct answer

freshwater, warmer

Correct Incorrect Correct answer

marine, warmer

Correct Incorrect Correct answer

freshwater, colder

Correct Incorrect Correct answer

31. Question

4 point(s)

Read the following statements and choose the correct option.

(A)- Red algae occur in well-lighted regions close to the surface of water.

(B)- Red algae occur at great depths in oceans where relatively little light penetrates.

(A) is corrrect, (B) is incorrect.

Correct Incorrect Correct answer

(A) is incorrect, (B) is correct.

Correct Incorrect Correct answer

Both are correct.

Correct Incorrect Correct answer

Both are incorrect.

Correct Incorrect Correct answer

32. Question

4 point(s)

Which is not a correct statement for red algae?

Some red algae have complex body organisation.
The red thallus of most of the red algae is unicellular.
The red algae usually reproduce vegetatively by fragmentation.
The food is stored as floridean starch.

I

Correct Incorrect Correct answer

II

Correct Incorrect Correct answer

III

Correct Incorrect Correct answer

IV

Correct Incorrect Correct answer

33. Question

4 point(s)

Which is a correct statement for food stored in red algae?

The food is stored as floridean starch, similar to amylopectin and glycogen.
The food is stored as floridean starch, similar to mannitol and laminarin.
The food is stored as floridean starch, similar to amylopectin and mannitol.
The food is stored as floridean starch, similar to amylopectin and laminarin.

1

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

4

Correct Incorrect Correct answer

34. Question

4 point(s)

The red algae reproduce

Asexually by non-motile spores.
Sexually by motile-gametes.
Asexually by motile spores.
Sexually by non-motile gametes.

Choose from the options given.

2 and 3

Correct Incorrect Correct answer

1 and 2

Correct Incorrect Correct answer

1 and 4

Correct Incorrect Correct answer

3 and 4

Correct Incorrect Correct answer

35. Question

4 point(s)

Sexual reproduction in red-algae is (A) and accompanied by complex post-fertilisation developments.

(A) can be?

Isogamous

Correct Incorrect Correct answer

Anisogamous

Correct Incorrect Correct answer

Oogamous

Correct Incorrect Correct answer

All of these

Correct Incorrect Correct answer

36. Question

4 point(s)

Agar is obtained from some members of?

Chlorophyceae

Correct Incorrect Correct answer

Rhodophyceae

Correct Incorrect Correct answer

Phaeophyceae

Correct Incorrect Correct answer

All of these

Correct Incorrect Correct answer

37. Question

4 point(s)

In the given options, which option has both the members showing oogamous type of sexual reproduction?

Polysiphonia, Fucus

Correct Incorrect Correct answer

Spirogyra , Polysiphonia

Correct Incorrect Correct answer

Ulothrix, Fucus

Correct Incorrect Correct answer

Porphyra, Udorina

Correct Incorrect Correct answer

38. Question

4 point(s)

If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?

AIPMT-2007

Chemical composition of the cell wall

Correct Incorrect Correct answer

Nature of stored food materials in the cell

Correct Incorrect Correct answer

Types of pigments present in the cell

Correct Incorrect Correct answer

Structural organisation of thallus

Correct Incorrect Correct answer

39. Question

4 point(s)

Which one of the following statements is wrong?

Agar-agar is obtained from Gelidium and Gracilaria.
Laminaria and Sargassum are used as food.
Algin is obtained from red algae and carrageen from brown algae.
Algae increase the level of dissolved oxygen in the immediate environment.

(NEET-Phase II- 2016)

1

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

4

Correct Incorrect Correct answer

40. Question

4 point(s)

Match column I with column II.

	Column I		Column II
A	Green alga	i	Chara
B	Red alga	ii	Ectocarpus
C	Brown alga	iii	Porphyra
		iv	Sargassum

A-i, iv ; B-iii, C-ii

Correct Incorrect Correct answer

A-iv, B-iii, C- i, ii

Correct Incorrect Correct answer

A-i, B- ii, iii ; C-iv

Correct Incorrect Correct answer

A-i, B-iii, C-ii, iv

Correct Incorrect Correct answer

41. Question

4 point(s)

Match column I with column II.

	Column I		Column II
A	Floridean starch	1	Polysiphonia
B	Laminarin and mannitol	2	Laminaria
C	Pyrenoids	3	Spirogyra
D	Pyriform gametes

A-2, B-3, C-1, D-2

Correct Incorrect Correct answer

A-1, B-2, C-3, D-2

Correct Incorrect Correct answer

A-1, B-2, C-2, D-3

Correct Incorrect Correct answer

A-1, B-2, C-2, D-3

Correct Incorrect Correct answer

42. Question

4 point(s)

Monoecious plant of Chara shows occurrence of :

upper antheridium and lower oogonium on the same plant.
upper oogonium and lower antheridium on the same plant.
stamen and carpel on the same plant.
antheridiophore and archegoniophore on the same plant.

(NEET-2013)

1

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

4

Correct Incorrect Correct answer

43. Question

4 point(s)

Select the wrong statement.

Anisogametes differ either in structure, function, or behaviour.
Chlamydomonas exhibits both anisogamy and isogamy and Fucus shows oogamy.
Isogametes are similar in structure, function, and behaviour.
In oomycetes, female gamete is smaller and motile, while male gamete is larger and non-motile.

(NEET-2013)

1

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

4

Correct Incorrect Correct answer

44. Question

4 point(s)

Read the following statements regarding the members of Phaeophyceae

A) Asexual reproduction occurs usually by biflagellate zoospores.

B) Sexual reproduction is by the oogamous method only.

C) Stored food is in the form of carbohydrates which is either mannitol or laminarin.

D) The major pigments found are chlorophyll a, c, carotenoids, and xanthophyll.

E) Vegetative cells have a cellulosic wall, usually covered on the outside by a gelatinous coating of algin.

Choose the correct statements from the options given below:

A, C, D, and E only

Correct Incorrect Correct answer

A, B, C, and E only

Correct Incorrect Correct answer

B, C, D, and E only

Correct Incorrect Correct answer

A, B, C, and D only

Correct Incorrect Correct answer

45. Question

4 point(s)

Read the following statements and choose correct option.

Assertion (A): Red algae (Rhodophyceae) usually appear red because of the dominance of the red pigment, r-phycoerythrin.

Reason (R): The pigment r-phycoerythrin effectively masks the green color of chlorophyll a and d present in their cells.

Both (A) and (R) are true and (R) is the correct explanation of (A).

Correct Incorrect Correct answer

Both (A) and (R) are true but (R) is not the correct explanation of (A).

Correct Incorrect Correct answer

(A) is true but (R) is false

Correct Incorrect Correct answer

Both (A) and (R) are false.

Correct Incorrect Correct answer

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