Biology Test 347

Question 1
4 / -1

Assertion : It is believe that the first cell on this planet lived in an atmosphere that lacked oxygen.

Reason : Living organisms retain the enzymatic machinery to partially oxidise glucose without the help of oxygen.

A
Assertion and reason both are true and the reason is correct explanation of assertion.

B
Assertion and reason both are true but reason is not correct explanation of assertion.

C
Assertion is true but reason is wrong.

D
Assertion and reason both are wrong.

Question 2
4 / -1

Phylogenetic classification system is based on the

A
evolutionary relationships between the various organisms.

B
anatomical characters of various organisms.

C
physiological characters of various organisms.

D
morphological characters of various organisms.

Question 3
4 / -1

Which of the following statements are for gibberellins ?

(i) Spraying juvenile conif ers with GAs hastens the maturity period, thus leading to early seed production.

(ii) Promotes bolting in beet, cabbages and many plants with rosette habit.

(iii) It helps to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation.

(iv) Their ability to cause an increase in length of axis is used to increase the length of grapes stalks.

(v) It help to initiate rooting in stem cuttings.

(vi) It promote flowering eg. in pineapples.

A
(i), (ii), (iii), (v) and (vi)

B
(i), (ii), (v) and (vi)

C
(i), (ii), and (iv)

D
All of these

Question 4
4 / -1

" X " being a higher category is the assemblage of families which exhibit a few "Y" characters. The "Z" characters are less in a number as compared to different genera included in a family. Identify "X", "Y", and "Z".

A
X - Order; Y - Similar; Z - Similar

B
X - Genus; Y - Similar; Z - Different

C
X - Species; Y - Different; Z - Similar

D
X - Class; Y - Different; Z - Different

Question 5
4 / -1

Statement I : Pea and groundnut have non- albuminous seeds.

Statement II : In pea and groundnut seeds retain a part of endosperm as it is not completely used up during embryo development.

A
Both statements are correct

B
Statement I is correct & II is incorrect

C
Statement I is incorrect & II is correct

D
Both statements are incorrect

Question 6
4 / -1

Which is the primary CO₂ fixation product in C₄plant?

A
3-phosphoglyceric acid

B
Oxaloacetic acid

C
Phosphoenol pyruvate

D
RuBP

Question 7
4 / -1

Glycolysis occurs in the ______ and produces ______, which in the presence of O₂ enters the ______.

A
cytosol; pyruvate; mitochondrion

B
cytosol; glucose; mitochondrion

C
mitochondrion; pyruvate; chloroplast

D
chloroplast; glucose; cytosol

Question 8
4 / -1

Which of the following class of algae is rarely found in fresh water ?

A
Chlorophyceae

B
Phaeophyceae

C
Rhodophyceae

D
Both (a) and (b)

Question 9
4 / -1

Q: Which one is correct about heterosporous pteridophytes?

A
Microspore and megaspores develop into the male and the female gametophytes respectively.

B
The female gametophyte are retained on the parent sporophyte for a variable period.

C
The development of the zygote into the embryo takes place within the female gametophyte.

D
All

Question 10
4 / -1

Which of the following represents correct binomial name of wheat?

A
Triticum Vulgare Linn

B
Triticum aestivum Linn

C
Oryza sativa Linn

D
Zea mays Linn

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Biology Test 34...

Question 1

Assertion and reason both are true and the reason is correct explanation of assertion.

Assertion and reason both are true but reason is not correct explanation of assertion.

Assertion is true but reason is wrong.

Assertion and reason both are wrong.

Question 2

evolutionary relationships between the various organisms.

anatomical characters of various organisms.

physiological characters of various organisms.

morphological characters of various organisms.

Question 3

(i), (ii), (iii), (v) and (vi)

(i), (ii), (v) and (vi)

(i), (ii), and (iv)

All of these

Question 4

X - Order; Y - Similar; Z - Similar

X - Genus; Y - Similar; Z - Different

X - Species; Y - Different; Z - Similar

X - Class; Y - Different; Z - Different

Question 5

Both statements are correct

Statement I is correct & II is incorrect

Statement I is incorrect & II is correct

Both statements are incorrect

Question 6

3-phosphoglyceric acid

Oxaloacetic acid

Phosphoenol pyruvate

RuBP

Question 7

cytosol; pyruvate; mitochondrion

cytosol; glucose; mitochondrion

mitochondrion; pyruvate; chloroplast

chloroplast; glucose; cytosol

Question 8

Chlorophyceae

Phaeophyceae

Rhodophyceae

Both (a) and (b)

Question 9

Microspore and megaspores develop into the male and the female gametophytes respectively.

The female gametophyte are retained on the parent sporophyte for a variable period.

The development of the zygote into the embryo takes place within the female gametophyte.

All

Question 10

Triticum Vulgare Linn

Triticum aestivum Linn

Oryza sativa Linn

Zea mays Linn

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