Tag: structure of monocot and dicot seed

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Questions Related to structure of monocot and dicot seed

Multiple choice biology the flower dicot seed structure of monocot and dicot seed the seed

Caruncle is derived from

  1. Peduncle

  2. Cotyledon

  3. Outer integument

  4. Inner integument
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
In plants,Caruncle is an outgrowth near the hilum on the seeds of some plants of family Euphorbiaceae (like Hevea ). Outer integument is the outermost part of the ovule . During development of the ovule, the outer integument differentiates into different layers of seed coat. Caruncle is also derived from outer integument.
So, the correct option is 'Outer integument'
Multiple choice biology the flower dicot seed structure of monocot and dicot seed the seed

Pea nut or ground nut oil is obtained from

  1. Lathyrus odoratus

  2. Pisum sativum

  3. Arachis hypogea

  4. Brassica juncea
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Peanut (Arachis hypogaea) oil is the refined fixed oil obtained from the seed kernels of Arachis hypogaea. Hydrogenated peanut oil, peanut acid, and peanut glycerides are all derived from peanut oil. It is light yellow-colored oil and extremely stable, with nourishing and protective properties.

Multiple choice biology seed dicot seed structure of monocot and dicot seed the seed

In which of the following, multiciliated/multiflagelated
anthropoids are present

  1. Riccia and Funaria

  2. Pteris and Cycas

  3. Riccia and Cycas

  4. Marchantia and Riccia
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In pt eris antheridum is having (about 32) multiflagellated, coiled (2 - 3 coils) anthropoids or spermatozoids.

Multiple choice biology seed dicot seed structure of monocot and dicot seed the seed

X is scar on the seed through which the developing seeds were attached to the fruit; above the X is a small pore called Y.
Identify X and Y and select the correct option.

  1. X - Micropyle, Y - Hilum

  2. X - Hilum, Y - Micropyle

  3. X - Testa, Y - Tegmen

  4. X - Chalaza, Y - Micropyle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

X - Hilum - it is the point of attachmnet of the ovule to its stalk or the funicle

Y - Micropyle, the pore or the opening of the ovule, where the integuments do not cover the ovule. It is an opening for the entry of the pollen tube during fertilization.
So, the correct answer is (b).

Multiple choice biology seeds - structure and germination dicot seed monocot seed structure of monocot and dicot seed

In monocotyledons, the leaves

  1. Arise at the tip of the stem only

  2. Do not sheath the stem

  3. Sheath the stem

  4. Sheath the stem only in the lower portion
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The stems of monocots are usually unbranched and fleshy. They do not grow thicker from year to year. New leaves often grow wrapped in a protective sheath formed by the older leaf.

Multiple choice biology seeds - structure and germination dicot seed monocot seed structure of monocot and dicot seed

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?

  1. Plumule

  2. Cotyledon

  3. Endosperm

  4. Aleurone layer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The scutellum is part of the structure of a barley and rice seed, the modified seed leaf. The scutellum can also refer to the equivalence of a thin cotyledon in monocots. It is very thin with high surface area and serves to absorb nutrients from the endosperm during germination. The scutellum is believed to contain an as yet unidentified protein transporter that facilitates starch movement from the endosperm to the embryo.
Thus, the correct answer is option B.