Statement I Two ATP molecules are produced during anaerobic respiration.Statement II Glucose is converted into pyruvic acid through a series of reaction with a net gain of 2 ATP molecules.
A. Both the statements are individually true and the statement II is the correct explanation of the statement I
B. Both the statements are individually true, but the statement II is not correct explanation of the statement I
C. The statement I is true, but the statement II is false
D. The statement I is false, but the statement II is true
Select an option to see the answer and solution.
In which of the following families of angiosperms, endosperm development is absent?
A. Malvaceae and Campanulaceae
B. Leguminosae and Umbelliferae
C. Orchidaceae and Podostemaceae
D. Anonaceae and Aristolochiaceae
Select an option to see the answer and solution.
In which of the following nastic movements visible response is induced with changes of temperature and light during the day and night?
A. Photonasty
B. Thermonasty
C. Chemonasty
D. Nyctinasty
Select an option to see the answer and solution.
Which of the following organisms causes red rust of tea?
A. Cephaleuros virescens
B. Cephaleuros coffeae
C. Cephaleuros parasitica
D. None of the above
Select an option to see the answer and solution.
Which of the following statements is/are correct regarding vegetative propagation of plants?
A. Only 1
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Select an option to see the answer and solution.
Water for drinking should have a BOD
A. More than one
B. Less than one
C. Equal to five
D. Between two and five
Select an option to see the answer and solution.
Cells of meristematic tissue lack
A. cellulose wall
B. vacuoles
C. cytoplasm
D. nuclei
Select an option to see the answer and solution.
According to Clapham, Jr (1973), the great productivity of reefs is obviously caused by
A. Abundance of light
B. Abundance of oxygen
C. Nutrient cycles
D. Large water areas
Select an option to see the answer and solution.
Match
List-I with
List-II and select the correct answer:
List-I (Hydrosere stages) List-II (Plants)
a. Submerged stage
1. Hydrilla, Potamogeton
b. Floating stage
2. Lemna, Nymphaea
c. Reed swamp stage
3. Polygonum, Juncus
d. Marsh meadow stage
4. Sagittaria, Phragmites
A. a-1, b-2, c-4, d-3
B. a-3, b-2, c-1, d-4
C. a-2, b-1, c-3, d-4
D. a-4, b-2, c-3, d-1
Select an option to see the answer and solution.
Which of the following plants is carnivorous?
A. Cypress vine
B. Venus Flytrap
C. Amaryllis
D. Hyacinth
Select an option to see the answer and solution.
Net movement of water from a dilute to a concentrated solution through a selectively permeable membrane is called
A. Diffusion
B. Dispersion
C. Osmosis
D. Absorption
Select an option to see the answer and solution.
Felling of which of the following plants, before start of conservation programmes in world, resulted in invasion by Pinus excelsa and Picea smithiana?
A. Quercus semecarpifolia
B. Pinus gerardiana
C. Cedrus deodara
D. Lantana camara
Select an option to see the answer and solution.
The omnivores, which feed both on plants as well as animals, fall in which of the following categories?
A. Primary consumers
B. Secondary consumers
C. Tertiary consumers
D. Micro-consumers
Select an option to see the answer and solution.
The hard seed coat may be responsible for dormancy by
A. Preventing gaseous exchange
B. Preventing the absorption of water
C. Mechanically restricting the growth of the embryo
D. All of the above
Select an option to see the answer and solution.
The most efficient devernaIizing factor, however, is
A. Water
B. High temperature
C. Light
D. Air pressure
Select an option to see the answer and solution.
In some places very small units of various types of vegetation occur repeatedly which are caused by changes in the environment. Those small units are called
A. Biomes
B. Microstands
C. Niches
D. None of the above
Select an option to see the answer and solution.
Match
List-I with
List-II and select the correct answer:
List-I List-II
a. Legume
1. A dehiscent dry fruit produced from a monocarpellary, superior ovary which dehisces from one suture only
b. Follicle
2. A dehiscent dry fruit produced from a bicarpellary, syncarpous, superior ovary which is unilocular but appears bilocular due to false septum
c. Siliqua
3. A dehiscent fruit produced from a monocarpellary, superior ovary which dehisces from both the sutures into two valves
d. Capsule
4. A dehiscent dry fruit produced from syncarpous, superior or inferior ovary which dehisces along two or more lines of suture in various ways
A. a-2, b-1, c-4, d-3
B. a-3, b-1, c-2, d-4
C. a-3, b-2, c-4, d-1
D. a-2, b-1, c-3, d-4
Select an option to see the answer and solution.
The loose smut of wheat is a
A. Localised disease
B. Permanent disease
C. Systemic disease
D. None of the above
Select an option to see the answer and solution.
The osmotic pressure of a given solution can be calculated by using which of the following relationship?
A. Molar concentration of solution × solution constant × absolute temperature
B. Molar concentration of solution × solution constant / absolute temperature
C. Molar concentration of solution + solution constant / absolute temperature
D. Absolute temperature × solution constant / molar concentration of solution
Select an option to see the answer and solution.
What is the formula of glucose?
A. C6 H22 O11
B. C6 H10 O5
C. C6 H12 O6
D. C6 H6 O6
Select an option to see the answer and solution.
