Tag: introduction to plant organs and germination

Quizzes (0) Questions (51)

Questions Related to introduction to plant organs and germination

Multiple choice evs life within the seed introduction to plant organs and germination seed to plants germination of seeds developmental journey of seed

In wheat and rice _________________.

  1. Per carp is fused with seed coat

  2. Per sperm is fused with seed coat

  3. Seed coat and per carp are separate

  4. Fruits are multisided
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In cereals like wheat and rice, the fruit is a caryopsis, where the pericarp (fruit wall) is fused with the seed coat (testa). This makes the grain a single-seeded fruit.

Multiple choice evs life within the seed introduction to plant organs and germination seed to plants germination of seeds developmental journey of seed

Sprouting time of seeds may vary according to 

  1. Temperature

  2. Humidity of the weather

  3. Air force

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Sprouting time of seeds may vary according to the temperature and humidity of the weather. Some seeds are hard to germinate when the weather is hot. Sometimes the temperature is just too high for that seed, sometimes the soil dries out too fast. Some varieties of some crops have better germination at high temperatures than others.

So, the correct answer is 'Both A and B'.
Multiple choice evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

The class of seeds which must maintain a relatively high moisture content in order to remain viable are known as ______________.

  1. Orthodox seeds

  2. Recalcitrant seeds

  3. Labyrinth seeds

  4. Ex-albumirious seeds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Recalcitrant seeds are seeds that do not survive drying and freezing during ex-situ conservation, and thus must maintain a relatively high moisture content to remain viable. Unlike orthodox seeds, they cannot tolerate desiccation.

Multiple choice evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

Match List I with List II and select the correct answer using the codes given the lists.

List-I List-II
a. Camphor $1$. Alkaloid
b. Anthocyanin $2$. Terpene
c. Nicotine $3$. Phenol
d. Hydroquinone $4$. Glycoside
  1. A-$2$, B-$4$, C-$1$, D-$3$
  2. A-$1$, B-$3$, C-$2$, D-$4$
  3. A-$3$, B-$2$, C-$4$, D-$1$
  4. A-$2$, B-$4$, C-$3$, D-$1$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Camphor is a terpene, Anthocyanin is a glycoside, Nicotine is an alkaloid, and Hydroquinone is a phenol. Matching these gives A-2, B-4, C-1, D-3.

Multiple choice evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

Consider the following statements regarding the introduction of plant materials and seeds.
a. Plant materials and seeds are always introduced from developed countries into developing/less developed countries.
b. The import of living plant materials must be accompanied by a certificate of health to prevent introduction of new disease and insect pests.
c. The superior varieties may be used in hybridization programmes.
Of these statements.

  1. $1, 2$ and $3$ are correct
  2. $1$ and $2$ are correct
  3. $2$ and $3$ are correct
  4. $1$ and $3$ are correct
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 1 is false because plant materials are introduced globally between various countries, not exclusively from developed to developing nations. Statement 2 is true because quarantine regulations require health certificates to prevent pest introduction. Statement 3 is true because superior introduced varieties are valuable resources for breeding programs.

Multiple choice evs life within the seed introduction to plant organs and germination seed to plants germination of seeds developmental journey of seed

Consider the following statements.
a. The seeds of Zea mays would germinate immediately after falling from the plant if favourable conditions of moisture, temperature and aeration are available.
b. Seed-coat dormancy is exhibited by Cassia and Gossypium
Which of the statements given is/are correct?

  1. $1$ only
  2. $2$ only
  3. Both $1$ and $2$
  4. Neither $1$ nor $2$
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

Occasionally, in some seeds such as ______(A) ___, remnants of nucellus are also persistent.This residual, persistent nucellus is the __(B)__________.

  1. (A) Castor and beet (B) Endopserm

  2. (A) Castor and beet (B) Carucele

  3. (A) Maize and rice (B) Aleurone layer

  4. (A) Black pepper and beet (B) Perisperm
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In some seeds such as black pepper and beet, remnants of the nucellus persist persistently. This residual nutritive nucellar tissue is known as the perisperm.