Biology

Plant Biology and Classification

1,473 Questions

Plant Biology and Classification deals with the taxonomy, evolution, and morphological features of the plant kingdom. This collection offers practice questions on plant groups, taxonomic hierarchies, and specific plant characteristics. The questions are tailored for students preparing for biology competitive exams.

Plant taxonomyPteridophytesAngiospermsPlant morphologyAlgae and bryophytesClassification systems

Plant Biology and Classification Questions

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Gram belongs to family

  1. Papilionaceae

  2. Asteraceae

  3. Liliaceae

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

Cicer arietinum, commonly known as chickpea, gram or Bengal gram is an annual legume belonging to family Fabaceae or Papilionaceae. The chickpea seeds are rich in protein. It is one of the earliest cultivated legumes and it is native to Middle East countries. It is used for human consumption and it is also used as animal fodder because it is rich in protein content. So, the correct answer is 'Papilionaceae'.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

The two families dominate in having maximum useful plants

  1. Fabaceae and Poaceae

  2. Liliaceae and Solanaceae

  3. Malvaceae and Brassicaceae

  4. Liliaceae and Poaceae
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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

Thus, the correct answer is option A.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Family Fabaceae belongs to series

  1. Inferae

  2. Thalamiflorae

  3. Calyciflorae

  4. Disciflorae
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Disciflorae is an artificial group of plants based on Bentham and Hooker classification. The group Disciflorae are polypetalous and dicotyledonous. It comprises flowers having prominent disc-shaped thalamus below the ovary. The ovary is superior. Fabaceae or Leguminosae is a large and economically important family of flowering plants. Fabaceae belongs to the series Disciflorae

So, the correct answer is 'Disciflorae'

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

The distinct features of fabaceae are

  1. Zygomorphic, diadelphous and monocarpellary

  2. Actinomorphic, monadelphous and monocarpellary

  3. Zygomorphic, monadelphous and pentacarpellary

  4. Zygomorphic, polyadephous and tricarpellary

  5. Zygomorphic, diadephous and bicarpellary
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fabaceae or Leguminosae is a large and economically important family of flowering plants. In Fabaceae, the flowers are zygomorphic (radial symmetry), bisexual. The stamens are 10, diadelphous (stamens united by their filaments so as to form two groups). The gynoecium is monocarpellary, syncarpous, superior ovary.

So, the correct answer is 'Zygomorphic, diadelphous and monocarpellary'.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Areca catechu and supari belongs to the family

  1. Poaceae

  2. Palmae

  3. Asteraceae

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

Areca catechu commonly called Arecanut. It belongs to palm tree species and family Arecaceae or Palmae. The fruit i.e nut of this is betel nut, commonly known as supari in India. 

So the correct option is B.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Family fabaceae is included under series

  1. Calyciflorae

  2. Thalamiflorae

  3. Disciflorae

  4. Microspermae
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Fabaceae comes under order Rosales of series under Calyciflorae as in has flowers in which sepals are united and stamens and petals appear to emerge from the base of calyx.
So the correct option is 'Calyciflorae'.
Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Aeschynomene belongs to family

  1. Fabaceae

  2. Brassicaceae

  3. Solanceceae

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

Aeschynomene is a genus of flowering plants belonging to the family Fabaceae. They are commonly known as joint vetches. These legumes are more common in warm regions and many species are aquatic.

So, the correct answer is 'Fabaceae'.

Multiple choice biology life processes: control and coordination movements in plants coordination in plants tropic and nastic movements in plants

The sun loving plants are referred to as

  1. Halophytes

  2. Heliophytes

  3. Heterotrophs

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

Halophytes are salt lovers and grow in marshy areas and other places with high salt concentrations. 

Heterotrophs are the organism that cannot manufacture their own food and depend on other living or dead organisms for their nutrition, example fungi and animals. 
Plants are autotrophs and can manufacture their own food through the process of photosynthesis. 
Plants growing in shade are called sciophytes or shade lovers. Plants growing in sun are called as heliophytes or sun lovers. Sciophytes have comparatively darker leaves and have higher amount of chlorophyll to capture scarce light. Heliophytes have lesser amount of chlorophyll as compared to sciophytes as they easily get enough light for the purpose of photosynthesis.

Multiple choice general knowledge impact of technology on livelihoods animal husbandry and fishery cattle farming agriculture sector

Consider the following statements.
1. Air borne plants that form symbotic relationships with host plants are called Epiphytes.
2. Low lying broad leaved plants are called Forbs.
Which of the statements given above is/are true?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Epiphytes grow on other plants for physical support without being parasitic. Forbs are herbaceous flowering plants that are not grasses, sedges, or rushes.

Multiple choice

What is the dominant group of flowering plants that emerged during the Cenozoic Era?

  1. Monocots

  2. Dicots

  3. Gymnosperms

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

Angiosperms, also known as flowering plants, became the dominant group of plants during the Cenozoic Era.

Multiple choice

Which of the following is not a type of seagrass?

  1. Thalassia testudinum

  2. Zostera marina

  3. Posidonia oceanica

  4. Ruppia maritima
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ruppia maritima is a type of aquatic plant, but it is not a seagrass. Seagrasses are flowering plants that grow in marine environments, while Ruppia maritima is a flowering plant that grows in freshwater or brackish water environments.

Multiple choice

Which plant group includes mosses, liverworts, and hornworts?

  1. Bryophytes

  2. Pteridophytes

  3. Gymnosperms

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

Bryophytes are non-vascular plants that lack true roots, stems, and leaves, and include mosses, liverworts, and hornworts.

Multiple choice

Which plant group includes ferns and horsetails?

  1. Bryophytes

  2. Pteridophytes

  3. Gymnosperms

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

Pteridophytes are vascular plants that include ferns and horsetails, and they were the first plants to develop true roots, stems, and leaves.