Self Studies
Self Studies
Self Studies
Self Studies

Plant Kingdom Test - 91

Result Self Studies

Plant Kingdom Test - 91
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    In moss,antheridia and archegonia occur at the tips of two different branches of the same plant.The condition is called
  • Question 2
    1 / -0
    Rhizoid containing sporophytic plants are characteristic of
    Solution
    Sporophyte characteristic of Psilopsida is rhizoids, some are without leaves and protostele. In Psilopsida, plants have rootless sporophytes. The stem is differentiated into an underground rhizome and an aerial part. Both are dichotomously branched. The rhizome bears rhizoids, both perform the function of a root. The aerial branches are green, leafless and bear small veinless outgrowths and carry out photosynthesis.
    So, the correct answer is option D.
  • Question 3
    1 / -0
    If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?
    Solution
    The various algae are classified into distinct groups, based on the types of pigments present in the cell as the type of chlorophyll, phycobilins, carotenoids pigments present in algae differ. 
    Hence, the correct answer is option B, i.e., Types of pigments present in the cell.
  • Question 4
    1 / -0
    Pyrenoids are made up of 
    Solution
    Pyrenoids are commonly present in the chloroplasts of many algae and also in the bryophyte. These are composed of a granular, homogeneous matrix around which starch deposits are found. They are associated with the operation of a carbon-concentrating mechanism (CCM). Thus the correct answer is option B.
  • Question 5
    1 / -0
    Which of the following algae is being used in space research?
    Solution
    Chlorella is a microscopic single celled green micro algae, that has existed on earth for over 2.5 billion years.
    Having survived in exactly the same form since the pre-Cambrian period, this micro algae owes its extraordinary survival to two highly unusual features: its unique cell wall and its astonishing capacity of reproduction.
    No other algae has generated as much scientific and medical interest as Chlorella. As a matter of fact, for the use of astronauts travelling into space, the researchers from NASA have investigated the fact that Chlorella is so complete that one could survive with it for long periods of time.
    Because, Chlorella has been found to contain over 50% protein.
  • Question 6
    1 / -0
    Largest ovules and male gametes are found in:
    Solution
    Cycas is the plant that produces largest ovules and pollens. Since it is gymnosperm, largest ovules and male gametes are found in gymnosperms.
    Hence, option 'D' is correct.
  • Question 7
    1 / -0
    Most of the photosynthesis (80%) which takes place on this earth is carried out by
    Solution
    Algae are chlorophyll containing, simple, thalloid (plant body not differentiated into root, stem and leaf) and autotrophic organisms. They are largely aquatic, either marine or fresh water. They also occur in habitats like moist stones, soils and wood. Some of them also occur in association with fungi (lichen) and animals (e,g, on sloth bear). Chalamydomonas, Volvox, Spirogyra, etc. are the examples of algae. Most of the photosynthesis (80%) which takes place on this earth is carried out by algae present in fresh water and ocean water. At least a half of the total carbon dioxide fixation on earth is carried out by algae through photosynthesis. Being photosynthesis they increase the level of dissolved oxygen in their immediate environment. It is essential for respiration of aquatic life.
  • Question 8
    1 / -0
    Examine the figure given below and select the right option giving all the four parts (a, b, c and d) correctly identified.

    Solution

    A.Correct option -A

    B.Explanation for correct option -A
    ●Female gametangiophore is known an archegoniophore ,it grows up from the thallus and consists of a stalk and an archegonial head with hanging lobes /fingers. 
    ●Gametophyte plant body is called a thallus, which lacks xylem and phloem and so,it  does not have true stem, true leaf and  true root. 
    ●Gemma cups are cup-like structures containing gemmae type structure .
    ●Gemmae are small discs of haploid tissue directly give rise to new gametophytes.
    ● Dispersed from gemma cups by rainfall. 
    ●Rhizoid are simple hair-like protuberances extend from the lower epidermal cells .
    ● Rhizoid absorb water by capillary action in which water moves up between threads of rhizoid.
  • Question 9
    1 / -0
    Which of the following is unlikely to grow next a sea coast?
  • Question 10
    1 / -0
    A bryophyte importance is of considerable economic
    Solution

Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now