Biology

Plant Biology and Classification

1,796 Questions

Plant Biology and Classification deals with the taxonomy, evolution, and morphological features of the plant kingdom. This collection offers practice questions on plant groups, taxonomic hierarchies, and specific plant characteristics. The questions are tailored for students preparing for biology competitive exams.

Plant taxonomyPteridophytesAngiospermsPlant morphologyAlgae and bryophytesClassification systems

Plant Biology and Classification Questions

Multiple choice

Consider the following statements:

  1. A group of freely inter-breeding organisms constitutes a species.
  2. Kingdom Fungi possesses the characteristics of both animals and plants.

Which of the given statements is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 1 is correct. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. Statement 2 is also correct. Kingdom Fungi is placed in between the Kingdoms Plantae and Animalia because it possesses both the characterstics of plants and animals. For e.g. yeast, mushroom, etc.

Multiple choice

Match the following ||| |---|---| | (1) Kingdom Monera | (i) Ferns | | (2) Kingdom Fungi | (ii) Paramecium | | (3) Kingdom Protista | (iii) Yeast | | (4) Kingdom Plantae | (iv) Sponge |

  1. 1 - (ii), 2 - (iii), 3 - (iv) and 4 - (i)

  2. 1 - (iii), 2 - (ii), 3 - (i) and 4 - (iv)

  3. 1 - (iii), 2 - (i), 3 - (ii) and 4 - (iv)

  4. 1 - (ii), 2 - (i), 3 - (iv) and 4 - (iii)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

(1) Kingdom Monera - (ii) Paramecium (2) Kingdom Fungi - (iii) Yeast (3) Kingdom Protista - (iv) Sponge (4) Kingdom Plantae - (i) Ferns

Multiple choice

Consider the following statements regarding meristematic cells. (a) These do not have large central vacuoles. (b) These are thin-walled and iodiametric. (c) These divide and produce new cells. Which of the above statements is/are correct?

  1. Only (a)

  2. Only (b)

  3. Only (c)

  4. All of these

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Statement (a) is correct. These do not have large central vacuoles. Statement (b) is correct. These are thin-walled and iodiametric. Statement (c) is correct. These divide and produce new cells.

Multiple choice

Consider the following statements regarding structure of parenchyma: (a) The cell walls are made up of cellulose, hemi-cellulose and pectin. (b) The inner cellular spaces may or may not be present between the cells. (c) The cell walls do not have primary walls. Which of the above statements is/are incorrect?

  1. Only (a)

  2. Only (b)

  3. Only (c)

  4. All the above

  5. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (c) is incorrect. The cell wall have primary walls with primary pit fields and inter-connected by plasmodesmata.

Multiple choice

Consider the following statements regarding characteristics of meristems: (a) They are thick-walled, isodiametric cells with little protoplasm. (b) Its cells are juvenile and capable of undergoing division. (c) Its cells contain very small amount of mitochondria and endoplasmic reticulum. Which of the above statements is/are incorrect?

  1. Only (a)

  2. Only (b)

  3. Only (c)

  4. All of the above

  5. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (a) is incorrect. They are thin-walled, not thick-walled, isodiametric cells with abundant protoplasm.

Multiple choice

The spirulina is a type of ___________.

  1. blue green algae

  2. cryptomonas

  3. brown algae

  4. charophyta

  5. mycorrhiza
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It is a type of blue green algae, which is rich in protein, vitamins, minerals, carotenoids, and antioxidants that can help to protect the cells from damage. It is made primarily from two species of cyanobacteria; Arthrospira platensis and Arthrospira maxima.

Multiple choice

In lichens, the phycobiont forms a symbiotic relationship by growing together with the partner, which is called _____________.

  1. commensal

  2. mycobiont

  3. photobiont

  4. haustoria

  5. mycorrhiza
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lichens are the association between specific ascomycetes (the fungus) and certain genera of either green algae or cyanobacteria. In lichen, the fungal partner is termed the mycobiont and the algal or cyanobacterial partner is called the phycobiont. It is a type of mutualistic relationship.

Multiple choice

What term is used to mention a distinctive two piece wall of silica in diatoms?

  1. Frustule

  2. Epitheca

  3. Hypotheca

  4. Pellicle

  5. Endosymbiont
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A frustule is the hard and porous cell wall or external layer of diatoms. The frustule is composed of silica made from silicic acid, and is coated with a layer of organic substance. This layer is actually composed of several types of polysaccharides. The frustule is usually composed of two overlapping sections known as thecae. The join between two thecae is supported by bands of silica that hold them together. This overlapping allows for some internal expansion room and is essential during the reproduction process. The frustule also contains many pores and slits that provide the diatoms access to the external environment for processes such as waste removal and mucilage secretion.