Question 2 :
Choose the correct answers from the alternatives given.<br>A major difference between algae and most fungi is that the former possess:

Question 11 :
Which of the following is a form class of red algae?

Question 19 :
Which of the following land plants has descended from red algae?

Question 21 :
Assertion: In Chlorophyceae, plant body is usually grass green. Reason: Members of Chlorophyceae, possess chlorophyll a, c, carotenoids and xanthophyll.

Question 23 :
Green algae are considered as ancestors of higher plants due to their resemblance with higher plants in

Question 28 :
Assertion: Only red algae are able to flourish at the great depth of sea. Reason: Red algae has the pigments r-phycoerythrin and b-phycocyanin.

Question 31 :
The model organism that has largely been responsible for making rapid advances in research on photosynthesis is&#160;<br/>

Question 32 :
Of the following groups, which secrete and deposit calcium carbonate and appear like corals?

Question 38 :
Laminaria (kelp) and Fucus (rock weed) are the examples of <br>

Question 40 :
Read the following statements. Find out how many statements are correct.<br/>(A) As the producer's algae are of paramount importance.<br/>(B) The male sex organ of <i>Chara</i> is known as nucule and the female sex organ is known as globule.<br/>(C) The cell wall of algae is made up of cellulose, pectin, galactans, and mannans.<br/>(D) In&#160;<i>Volvox,</i> the colony is called coenobium.<br/>(E) On the basis of pigments, red algae are similar to blue green algae.

Question 43 :
Match the following and choose the correct combination from the options given.<br><table class="wysiwyg-table"><tbody><tr><td></td><td>Group Protista</td><td></td><td>Example</td></tr><tr><td>a.</td><td>Chrysophytes</td><td>i)</td><td>Paramecium</td></tr><tr><td>b.</td><td>Dinoflagelates</td><td>ii)</td><td>Euglena</td></tr><tr><td>c.</td><td>Euglenoids</td><td>iii)</td><td>Gonyaulax</td></tr><tr><td>d.</td><td>Protozoans</td><td>iv)</td><td>Diatoms</td></tr></tbody></table>

Question 48 :
Read the given statements about algae and select the correct option.<br/>(i) Plant body is thalloid.<br/>(ii) They are largely aquatic.<br/>(iii) Reproduction occurs by vegetative, asexual and sexual methods.<br/>(iv) &#9; &#9; &#9; &#9;<i>Chlamydomonas, Volvox </i>and <i>Ulothrix</i> are the multicellular algae.

Question 49 :
Assertion: Spermatangium of red algae bears trichogyne Reason: Trichogyne helps in reproduction.

Question 51 :
Agar, alginic acid and carragheen obtained from Gracilaria and Chondrus respctively are chemically

Question 58 :
How many terms in the column is associated to stonewort?<br><br>Protandrous , Gynandrous, shield cells, coronary cells, Tube cells, Archegoniophore, Globule, Monoecious<br>

Question 61 :
Which of the following is commonly present in fresh water?<br/>(A)- <i>Ulothrix</i><br/>(B)- <i>Spirogyra</i><br/>(C)- <i>Ectocarpus</i><br/>(D)- <i>Batrachospermum</i>

Question 62 :
Assertion: <i>Batrachospermum </i>is called as 'frog spawn alga'. Reason: This looks like eggs of frog.

Question 65 :
Study the following lists:<br/>&#160;List-I &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; List -II<br/><br/>(A) Anucleate &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;&#160; (1) Spirogyra gamciangium &#160;&#160;<br/>(B) Uninucleate &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; (2) Rhizopus chlamydospore&#160;<br/>(C) Multinucleate &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; (3) Pteris neck canal cell&#160;<br/>(D) Binucleate &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; (4) Vitis matured sieve element&#160;<br/>&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; (5) Akinite of Spirogyra

Question 73 :
One of the following can flourish at high temperature of 87$^o$C.

Question 75 :
By which of the following methods an algae can perennate under unfavourable condition?

Question 76 :
Smallest plant which contain green pigment such as higher green plant is<br>

Question 79 :
The members of Phaeophyceae or brown algae are found primarily in / on

Question 80 :
Comparable to angiosperms, which of the following algae&#160;exhibits diplontic life cycle?<br/>

Question 82 :
Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?

Question 89 :
Which of the following organisms requires a medium through which male gametes move?<br>

Question 91 :
In the Chlorophyta, the reserve food of protein surrounded&#160;by starch, form a compact body termed as&#160;<br/>

Question 94 :
If photosynthesizing green algae are provided with $Co_2$ synthesized with heavy oxygen(^{18}O$, later analusis will show that all but on of the following compunds produced by the algae contain the ^{18} label. That one is

Question 95 :
Read the following statements about Rhodophyceae. Pick up the incorrect statements&#160;&#160;<br/>(A) Agar-agar for are non-sulfated&#160;hydrocolloids<br/>(B) Both red algae and blue-green algae lack flagella<br/>(C) $Chl -a$, $d$, $r-phycoerythrin$ pigments are found in red algae<br/>(D) Motile gametes of polysiphonic are called spermatia<br/>

Question 97 :
Commercial product &#34;Agar &#34; which is used in &#34; ice creams&#34; and to grow microbes in the laboratory is extracted from

Question 98 :
A group of plants which are autotrophs their sex organs are non- jacketed and whose zygotes secretes thick wall are called :

Question 99 :
Change in colour of algae, according to depth in&#160;sea is called as

Question 103 :
When a group of algal cells are imprisoned in fungal mycelium and whole of this group is then used for&#160;vegetative multiplication of a lichen, it is called as

Question 108 :
Which of the following occurs both in fresh as well as in marine water?<br>

Question 111 :
One of the following occurs both in fresh water and marine habitat.