Tag: different modes of nutrition in plants

Quizzes (0) Questions (126)

Questions Related to different modes of nutrition in plants

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

We can demarcate a facultative parasite as one which

  1. Inevitably requires living host.

  2. Only requires dead organic matter to live.

  3. Is actually a parasite but can also become saprophyte.

  4. Is actually a saprophyte but can also become a parasite.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Facultative parasites are organisms which do not completely depend on a host for completing its life cycle, but may become parasitic in absence of food or other favorable conditions

Example: Armillaria species
So, the correct answer is 'Is actually a saprophyte but can also become a parasite'

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Cuscuta is

  1. Total root parasites

  2. Total stem parasites

  3. Partial stem parasites

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

Cuscuta (Doddar) plant is obligate or total stem parasite. It completely lacks chlorophyll and has no connection with the soil after the seeding stage. Therefore it is totally dependent on the host for organic food materials and supply of water and minerals salts.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Animals living and subsisting on other animals are studied under

  1. Pathology

  2. Parasitology

  3. Parazoology

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

a) Pathology deals with the study of the nature and causes of diseases. 

b) Parasitology deals with the study of parasitic organism.
c) Parazoology deals with the study of animals known as parazoa.
d) Protozoology deals with the study of protozoa.
So, the correct answer is 'Parasitology'.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

A fungus which grows on a host but can also subsist on organic matter is

  1. Obligate parasite

  2. Obligate saprophyte

  3. Facultative saprophyte

  4. Facultative parasite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A facultative saprophyte is an organism that is primarily a parasite but can survive as a saprophyte if a living host is unavailable.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Which one of the following is a partial root parasite?

  1. Balanophora

  2. Santalum

  3. Viscum

  4. Cuscuta
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Santalum album is a partial root parasite because it photosynthesizes its own food, but taps the roots of other species for water and inorganic nutrients. so it depends only partially on the host. It grows on the roots of Dalbergia, Eucalyptus, and Albizzia.
So, the correct option is 'Santalum'.
Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

A partial parasite is?

  1. Cuscuta

  2. Cassytha

  3. Arceuthobium

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

Viscum is a partial stem parasite among the following because it depends on its host for only water and minerals. It can prepare its own food through photosynthesis as it is chlorophyllous.

So the correct option is 'Viscum'.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Monotropa is a

  1. Saprophyte

  2. Symbiont

  3. Parasite

  4. Insectivorous plant
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Monotropa is a Saprophyte.

Monotropa uniflora (Indian pipe) is a small, low-lying wild flower. It lacks chlorophyll accounting for its translucent white colour. Because it cannot synthesise its own energy, this plant is saprophyte.