Morphology of Flowering Plants Test -1

Explanation:

The correct arrangement of the zones as seen in the vertical section of root is root cap zone, region of meristematic activity, region of elongation, region of maturation and root hair region.

 

Explanation:

The fleshy leaves of onion and garlic store food.

 

Explanation:

Thepetiole help hold the blade to light. Long thin flexiblepetioles allow leaf blades to flutter in wind, therebycooling the leaf and bringing fresh air to leaf surface.

 

Explanation:

A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in aquatic plants such as Pistia and Eicchornia.

 

Explanation:

The axillary buds of stems may also get modified into woody, straight and pointed thorns in Citrus and Bougainvillea. They protect plants from browsing animals.

 

Explanation:

Potato is a modified stem as it contain nodes in form of eyes on potato tubers which germinate to produce new potato plants if placed in suitable conditions.

 

Explanation:

The leaf base bear two lateral small leaf like structures called stipules.

 

Explanation:

Roots developed from parts of the plant other than radicle are called adventitious roots.

 

Explanation:

In some plants, like grass,Monsteraand the banyan tree, roots arisefrom parts of the plant other than theradicle and are called adventitious roots

 

• Corymb (e.g., Cauliflower), catkin (Mulberry) and hypanthodium (Fig) are edible inflorescences. 
• In corymb, the main axis is short and all the flowers are more or less at the same level.
• In catkin, the spike inflorescence is pendulous with sessile flowers.
• In hypanthodium, the fleshy receptacle forms a hollow pear-shaped cavity. 

Therefore, the correct option is D.

In hypanthodium, the fleshy receptacle forms a hollow pear-shaped cavity. The female flowers develop at the base of the cavity and male flowers towards the mouth. In between the male and female flowers, on the sides of the cavity female gall flowers are developed. e.g., Ficus.
Therefore, the correct option is D.

Sorghum has a compound inflorescence called as spike of spikelets. In compound inflorescence, the main axis branches once or twice in racemose or cymose manner and the ultimate branches bears flowers.
So, the correct answer is 'spike of spikelets'

A catkin or ament is a scaly, generally drooping spike or raceme. It has a pendulous spike with unisexual sessile flowers. They dropped off as whole after fertilization e.g., oak.
Therefore, the correct option is C.

The edible cauliflower is Brassica oleracea botrytis. The inflorescence or the head of the flower is edible and is known as curd. Cauliflowers have undifferentiated flowers which remain functionless during their first year of growth. 
Therefore, the correct answer is option A.

Cyathium is a special type of inflorescence. The bracts becomes fused to form a cup shaped structure called involucre. This cup completely encloses a single female flower surrounded by male flowers. e.g., Euphorbia.
Therefore, the correct option is C.

• The Fabaceae or Leguminosae is commonly known as the legume or pea family. 
• Most of the economically important plants in the Fabaceae family are herbs. 
  
• It is an economically important family of flowering plants. 
• The Poaceae is a large family of monocotyledonous flowering plants. The Poaceae is the fifth-largest plant family.  
• It produces economically useful plants such as Barley, Maize, Oats, Rice, Bamboo, Meadow-grass, Ryegrass, etc. 

The sepals (calyx) resemble leaves because of their generally green colour. From their base and along most of their length, sepals remain either separate or marginally fused. The sepals enclose and protect the unopened flower bud.

Monochlamydeous flower has only one accessory whorl present (perianth). For example, Polygonaceae and Liliaceae.

• A type of fruit that develops from an inflorescence, rather than from a single flower is known as composite fruit. Example - fig, pineapple, and mulberry.