Biology

Plant Biology and Classification

1,796 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

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

Marginal placentation is a characteristic feature of legumes.

  1. True

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

Placentation refers to the arrangement of ovules inside the ovary. The ovary in which the placenta forms a ridge along the ventral suture of the ovary and the ovules develop on two separate rows is known to have marginal placentation. It is characteristic of legumes like pea.

So, the correct option is, 'True'.

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 biology reproduction in living organisms growth and development in plants sexual reproduction in plants post fertilization - plants

After fertilization, the outer integument forms 

  1. Testa

  2. Tegmen

  3. Perisperm

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

After fertilization process, the different cells in the embryo sac develops to form several parts of the embryo. For instance, the outer integument forms testa, inner integument forms tegmen and ovary wall forms pericarp.

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 function of the epidermis in plants?

  1. Protection

  2. Gas exchange

  3. Water absorption

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The epidermis is the outermost layer of cells in plants. It protects the plant from the environment, allows for gas exchange, and absorbs water.

Multiple choice

What is the function of the root cap in plants?

  1. Protection

  2. Water absorption

  3. Anchorage

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The root cap is a protective layer of cells at the tip of the root that protects the root as it grows through the soil. It also helps the root absorb water and anchor the plant in the soil.

Multiple choice

What is the function of the cuticle in plants?

  1. Protection

  2. Gas exchange

  3. Water absorption

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The cuticle is a waxy layer on the surface of leaves and stems that protects the plant from the environment.

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 of the following is NOT a type of plant defense mechanism against herbivores?

  1. Producing toxins

  2. Developing spines or thorns

  3. Attracting predators of herbivores

  4. Increasing growth rate
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increasing growth rate is not a plant defense mechanism against herbivores, as it does not directly deter or prevent herbivory.

Multiple choice

Which of the following is NOT a type of plant defense mechanism?

  1. Physical barriers

  2. Chemical barriers

  3. Genetic resistance

  4. Induced resistance
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Genetic resistance is not a type of plant defense mechanism. Physical barriers, chemical barriers, and induced resistance are all types of plant defense mechanisms.

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.