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Universal Self Scorer Biology

Facultative saprophyte is

Universal Self Scorer Biology

Universal

Chapter 1: The Living World

868 questions

Chapter 2: Diversity of Life

228 questions

Chapter 3: Unity of life

273 questions

Chapter 4: Morphology of Plants

158 questions

Question

Easy

Solving time: 1 mins

Facultative saprophyte is

A parasite which can live as a saprophyte

Always a parasite

Always a saprophyte

May acquire parasitic mode of life

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Book:

Universal Self Scorer Biology (Universal)

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Text solutionVerified

A facultative saprophyte is an organism that generally obtains nourishment from the living matter, but can obtain nourishment even from dead organic matter too.

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Practice questions from Universal Self Scorer Biology (Universal)

Question 1

Easy

Which organism is used to obtain the single cell protein

Bacteria
Yeast
Filamentous Fungi
All of the above

Topic:

Biological Classification

Book:

Universal Self Scorer Biology (Universal)

View solution

Question 2

Easy

In endomycorrhiza, the fungus is commonly

Zygomycetes
Deuteromycetes
Ascomycete
Basidiomycete

Topic:

Biological Classification

Book:

Universal Self Scorer Biology (Universal)

View solution

Question 3

Easy

Yeast produces an enzyme complex that is responsible for fermentation. The enzyme complex is

Aldolase
Dehydrogenase
Invertase
Zymase

Topic:

Biological Classification

Book:

Universal Self Scorer Biology (Universal)

View solution

Question 4

Easy

Reserve food material of fungi is

Starch
Protein
Glucose
Glycogen

Topic:

Biological Classification

Book:

Universal Self Scorer Biology (Universal)

View solution

Practice more questions from Biological Classification

Question 1

Easy

Bacterial flagella do not show ATPase activity and 9+2 organization. These are chemically formed of

Flagellin
Pilin
Tubulin
Bacterin

Topic:

Biological Classification

View solution

Question 2

Medium

The fruiting body formed from a filamentous heterotrophic organism, which is known for its nutritive value for humanity, is

Cremocarp
Acervulus
Basidiocarp
Akinete

Topic:

Biological Classification

View solution

Question 3

Medium

Study the given figure of embryo sac in angiosperms and answer the questions that follows

(i) Embryo sac is also called
(a) female gamete
(b) synergids
(c) female gametophyte
(d) egg of angiosperm

(ii) The arrangement of the nuclei in a normal embryo sac in the dicot
(a)

3 + 2 + 3

(b)

2 + 3 + 3

(c)

3 + 3 + 2

(d)

2 + 4 + 2

(iii) Antipodal nuclei in a typical angiospermic embryo sac which found towards
(a) micropylar end
(b) in the middle (polar) region
(c) chalazal end
(d) on the lateral sides

(iv) What does the labelled part

A

do at the entrance into ovule?
(a) It brings about opening of the pollen tube
(b) It quides pollen tube from a synergid to egg
(c) It helps in the entry of pollen tube into a synergid
(d) It prevents entry of more than one pollen tube into the embryo sac

Topic:

Biological Classification

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

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Question 4

Medium

Which one of the following is a correct statements?

Pteridophyte gametophyte has a protonemal and leafy stage
In gymnosperms female gametophyte free-living
Antheridiophores and archegoniophores are present in pteridophytes
Origin of seed habit can be traced in pteridophytes

Topic:

Biological Classification

Book:

Biology-for-NEET-Volume-2-Class-XII

View 2 solutions

Practice questions on similar concepts asked by Filo students

Question 1

DIFFERENTLATION, DEDIEEBRENTLATION AND REDIFFERENTIATION temeu 245 REDIFFERENTIATION and derived from root apical and shoot-apical meristems and 1il) to maturation is termed as differentiation. During dins. This act s. sindergo few to major structural changes both in their cellentlation, (lop lasm. For example, to form a tracheary element, the cell walls and

_{se}

their protoplasm. They also develop a very strong would pocellulosic secondary cell walls, to carry water to long distancestic. jer extreme tension. Try to correlate the various anatomical fereven fencounter in plants to the functions they perform. plants show another interesting phenomenon. The living differentlated Nis that by now have lost the capacity to divide can regain the capacity ddivision under certain conditions. This phenomenon is termed as dedfferentiation. For example, formation of meristems-interfascicular ombium and cork cambium from fully differentiated parenchyma cells. vilile doing so, such meristems/tissues are able to divide and produce clls that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated. List some of the tissues in a rody dicotyledenous plant that are the products of redifferentiation. How would you describe a tumour? What would you call the parenchyma vels that are made to divide under controlled laboratory conditions during

\to

pant tissue culture? Recall, in Section 15.1.1, we have mentioned that the growth in plants sopen, i.e., it can be indeterminate or determinate. Now, we may say that ken differentiation in plants is open, because cells/tissues arising out of the same meristem have different structures at maturity. The final structure at maturity of a cell/tissue is also determined by the location of the cell within. For example, cells positioned away from root apical Ieristems differentiate as root-cap cells, while those pushed to the kriphery mature as epidermis. Can you add a few more examples of open differentiation correlating the position of a cell to its position in an organ?

Topic:

Plant Physiology

View solution

Question 2

Refer to the Action potential tracing above: Select the FALSE statement/s:

During phase B: the Na+ inactivation gate is closed and the activation gate is open.
During phase B: Both the Na+ inactivation gate and the activation gate are open.
During phase E: Both the Na+ activation gate and inactivation gate are closed.
Both A and C.
Both B and C.

Topic:

Biology

View solution

Question 3

Label the paranasal sinuses in the figure