Biology · Environmental Studies

Plant Reproduction and Germination

892 Questions

Plant reproduction and germination involve seed structure, cotyledon function, and dispersal mechanisms. These core botany concepts frequently appear in general science sections. Practice these questions to ensure better retention.

Seed germination typesSeed dispersal mechanismsCotyledons and albuminous seedsCryptogamic plantsPhanerogams reproduction

Plant Reproduction and Germination Questions

Multiple choice types of endosperms plant kingdom biology

Ruminate endosperm occurs in the seeds of.

  1. Arecaceae

  2. Poaceae

  3. Myrtaceae

  4. Euphorbiaceous
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ruminate endosperm, which has an irregular or wrinkled surface, is a characteristic feature of seeds in the Arecaceae (palm) family, such as the Areca nut.

Multiple choice biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

Consider the following plants.
a. Castor bean
b. Pea
c. Maize
d. Soybean
In which of these plants is cotyledon the principal reserve tissue of food?

  1. $1$ and $2$
  2. $2$ and $4$
  3. $1$ and $3$
  4. $3$ and $4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In castor bean and pea, the cotyledons serve as the primary food storage organs for the developing embryo. Maize and soybean typically store food in the endosperm or other structures, making castor bean and pea the correct examples for cotyledonary food storage.

Multiple choice chemistry phenomena around us changes and its classification types of changes classification of changes

The growth of seedlings in a crop is a:

  1. undesirable change

  2. desirable change

  3. reversible change

  4. physical change
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The growth of seedlings in a crop is a desirable change i.e the changes which are beneficial to nature or which does not cause any harm to nature.

Few of the examples are curdling of milk, seed germination etc...

Multiple choice chemistry phenomena around us changes and its classification types of changes classification of changes

A seed growing into a tree is an example of:

  1. slow physical change

  2. fast periodic change

  3. slow natural change

  4. man-made reversible change
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A seed growing into a tree is an example of a slow and natural process. Slow because it takes days to sometimes months for a seed to develop into a sapling and then years to a develop into a tree. All these processes occur naturally using all natural resources like water, sunlight, soil.

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

A dicot exalbuminous seed is

  1. Pea

  2. Ester

  3. Rice

  4. Wheat
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pea is a dicot exalbuminous seed. In the non-endospermic dicotyledons the endosperm is absorbed by the embryo as the latter grows within the developing seed and the cotyledons of the embryo become filled with stored food. At maturity, seeds of these species have no endosperm and are also referred to as exalbuminous seeds. The exalbuminous seeds include the legumes such as beans and peas.
Therefore, the correct answer is option A.

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

Some plants of Angiosperms are called as dicotyledons, because their seedlings contain

  1. Three cotyledons

  2. Two cotyledons

  3. Many cotyledons

  4. Four cotyledons
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dicots have floral parts in multiples of four or five, and their seeds contain two cotyledons. The cotyledons usually absorb the food from the endosperm first, and then provide the food for the embryo. 

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 botany how plants grow experiments on photosynthesis - light importance of light for photosynthesis photosynthesis necessities- experiments various experiments on photosynthesis experiments on photosynthesis - gases

The upper dormant seeds of cocklebur(Xanthium) germinate only under high oxygen levels. The oxygen is required for _______________.

  1. Degradation of inhibitors

  2. Synthesis of promoters

  3. Respiration

  4. Photorespiration
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In many dormant seeds, oxygen is required for the aerobic respiration process that provides the energy and metabolic intermediates necessary to degrade growth inhibitors (like ABA) that maintain dormancy.

Multiple choice biology nutrition and respiration importance of light for photosynthesis various experiments on photosynthesis experiments on photosynthesis - gases

Before setting up an experiment to show that seeds release $CO _{2}$ during respiration, the
seeds should be :

  1. dried completely.

  2. boiled to make them soft.

  3. soaked in vinegar.

  4. kept moist till they germinate.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To demonstrate respiration, seeds must be alive and metabolically active. Germinating seeds are actively respiring and consume oxygen while releasing carbon dioxide.