Biology · Environmental Studies

Plant Reproduction and Germination

835 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 general knowledge

Which is the largest seed in the World?

  1. Stoke nut

  2. Coconut

  3. Walnut

  4. Brown nut
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Among the options given, the coconut is the largest seed. Coconuts can weigh up to 2-3 kg and are the largest seeds that commonly fall into the 'nut' category. The actual largest seed in the world is the coco de mer (Lodoicea maldivica), which can weigh up to 25 kg, but it's not listed among the options. Walnuts and the other options listed are significantly smaller.

Multiple choice general knowledge science & technology

Germinating seeds respire slowly as compared with leaves.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Germinating seeds are metabolically very active as they break dormancy and begin growth, requiring rapid respiration to produce energy (ATP) for cell division and elongation. Mature leaves primarily photosynthesize and have relatively slower respiration rates compared to their photosynthetic activity. Therefore, the statement is false.

Multiple choice softskills communication

Plant a seed

  1. Feel better

  2. To do something that will develop more in the future

  3. Idea that when an economy is performing well

  4. Common example of something
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'Plant a seed' metaphorically means to do something that will develop, grow, or produce results in the future. This could be planting an idea, initiating a project, or starting a process. Option B correctly captures this meaning of doing something with future development potential. Option C incorrectly refers to economic concepts.

Multiple choice

The pattern of branching in plants is identified by

  1. divaricate

  2. decurrent

  3. dehiscence

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

It is the process used in identifying plants describing the pattern of branching. Divaricate branching is roughly horizontal, usually only diverging about 15 degrees upward or downward.

Multiple choice

Seed develops from which part of the plant?

  1. Ovary

  2. Ovule

  3. Embryo

  4. Zygote

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

Plant structure that develops into a seed when fertilized is called ovule. It is typically located inside the portion of the flower called the gynoecium.

Multiple choice

Which of the following statements is/are false?

a. Animals have greater powers of regeneration than plants. b. It is the thick walls of spores that help them survive adverse environmental conditions. c. No seeds are produced in the process of vegetative reproduction.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

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

This is the correct option as this statement is false. Plants have greater powers of regeneration than animals.

Multiple choice

Directions: This question presents a sentence, all or part of which is underlined. Beneath the sentence you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

There are hook-like spines on the fishhook barrel cactus, whose function is to latch on to water borne debris and transport the seed to favorable locations for germination.

  1. There are hook-like spines on the fishhook barrel cactus, whose function is to latch on to water borne debris and transport the seed to favorable locations for germination.

  2. The fishhook barrel cactus has hook-like spines, whose function is to latch on to water borne debris and transport the seed to locations favorable for germination.

  3. There are hook-like spines on the fishhook barrel cactus, the function of which is to latch on to water borne debris and transport the seed to locations favorable for germination.

  4. To transport the seeds to locations favorable for germination, the fishhook barrel cactus has hooked spines that latch on to water borne debris.

  5. The fishhook barrel cactus has hook-like spines, with the function of latching on to water borne debris and transporting the seed to locations favorable for germination.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct. The option removes Modifier Error by placing hook-like spines right before 'whose'. Also, the use of 'locations favorable for germination' is idiomatic.

Multiple choice

Which of the following statement/s is/are correct? (a) Fungi reproduce using spores that germinate and grow into a new fungus. (b) Heterotrophic plants do not have chlorophyll. (c) The food is sent to other parts of the plant through the stomata.

  1. only a

  2. only b

  3. only c

  4. both a and b

  5. a, b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fungi reproduce using spores that germinate and grow into a new fungus. Heterotrophic plants do not have chlorophyll  and cannot produce food by photosynthesis. Both statements are correct.

Multiple choice

The dormancy taking place in non-dormant and post dormant seeds is

  1. secondary dormancy

  2. combinational dormancy

  3. morphophysiological dormancy

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

Secondary dormancy occurs in some non-dormant and post dormant seeds that are exposed to conditions that are not favorable for germination, like high temperatures. It is caused by conditions that occur after the seed has been dispersed.

Multiple choice

The food reserve of a seed is

  1. radicle

  2. cotyledon

  3. plumule

  4. seed coat
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The cotyledon is the seed leaf that stores food reserves to nourish the embryo during germination. Radicle becomes the root, plumule becomes the shoot, and seed coat is the protective outer covering.

Multiple choice

The future shoot present in a seed is termed as

  1. radicle

  2. plumule

  3. cotyledon

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

The plumule is the embryonic shoot that develops into the stem and leaves of the plant. Radicle becomes the root, cotyledon stores food, and embryo is the entire immature plant inside the seed.