In heterolactic fermentation, which of the following is formed along with lactic acid?
A. Lipoic acid
B. Phosphoenol pyruvic acid
C. Ethanol
D. Methane
Select an option to see the answer and solution.
Which of the following groups of algae forms a dense growth on the surfaces of pools, discoloring the water, and producing the phenomenon known as "water bloom"?
A. Cyanophyta
B. Euglenophyta
C. Chlorophyta
D. Rhodophyta
Select an option to see the answer and solution.
A plant with fibrous root system is
A. wheat
B. pea
C. mustard
D. bean
Select an option to see the answer and solution.
From the following option, seal is the species of
A. Fish
B. Bird
C. Reptiles
D. Mammal
Select an option to see the answer and solution.
Plants growing on tacks are called
A. Epiphytes
B. Halophytes
C. Xerophytes
D. Lithophytes
Select an option to see the answer and solution.
During the virulent phage in T-even phages, the early proteins formed, include
A. Enzymes for synthesis of phage DNA
B. Coat proteins
C. Phage lysozyme
D. Both B and C
Select an option to see the answer and solution.
Which of the following parts of potato is edible?
A. Stem
B. Seed
C. Root
D. Fruit
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. Amphitrichous
1. One flagellum at each pole of the bacterium cell
b. Cephalotrichous
2. Two or more flagella at both the poles of the bacterium cell
c. Lophotrichous
3. Two or more flagella in a bunch at one pole of the bacterium cell
d. Peritrichous
4. Large number of flagella distributed evenly all over the cell surface of the bacterium cell
A. a-1, b-2, c-3, d-4
B. a-1, b-3, c-2, d-4
C. a-4, b-2, c-3, d-1
D. a-4, b-3, c-2, d-1
Select an option to see the answer and solution.
The fungal hyphae in the upper cortex region of heteromerous lichen grow more or less vertically and are compactly interwoven to produce a tissue like layer called
A. Parenchyma
B. Plectenchyma
C. Aerenchyma
D. Collenchyma
Select an option to see the answer and solution.
The presence of which of the following substances in the thickened walls of collenchyma endow it with the capacity to expand and give a tensile strength to the organs?
A. Cellulose and glucose
B. Glucose and suberin
C. Lignin and pectin
D. Cellulose and pectin
Select an option to see the answer and solution.
In which of the following nectry types the nectry is placed on receptacle between sepals and petals?
A. Perigonal type
B. Torus type
C. Discoid type
D. Styler type
Select an option to see the answer and solution.
According to the histogen theory, the outermost layer of histogen was named as
A. Dermatogen
B. Periblem
C. Epiblemma
D. Plerome
Select an option to see the answer and solution.
According to De Candole, the classification of plants dealing with the alphabetical arrangement of orders is known as
A. Empirical
B. Rational
C. Hypothetical
D. Practical
Select an option to see the answer and solution.
A plant bud is
A. An embryonic shoot
B. An embryonic leaf
C. An endosperm
D. A seed
Select an option to see the answer and solution.
Which one of the following is a true fish?
A. Starfish
B. Jellyfish
C. Dogfish
D. Seahorse
Select an option to see the answer and solution.
According to Hutchinson's system of classification
A. Trees and shrubs are more primitive than herbs and older than climbers
B. Terrestrial plants have aquatic ancestry
C. Perennials are older than biennials and annuals
D. Both A and C
Select an option to see the answer and solution.
The chief features of the order Saprolegniales include:
A. The sporangium is not much different from the somatic parent hyphae
B. More than one oospheres in the oogonium are formed
C. The entire protoplast of the oogonium is utilized in the formation of oospheres
D. All of the above
Select an option to see the answer and solution.
An example of false fruit is
A. apple
B. guava
C. mango
D. tomato
Select an option to see the answer and solution.
Bacterial chromosomes do not show evidence of possessing
A. 6-methylaminopurine
B. 5-methylcytosine
C. Thymine
D. Histone protein
Select an option to see the answer and solution.
The classification concerned with the nature and yield of economic products from the plant parts is known as
A. Natural classification
B. Artificial classification
C. Practical classification
D. None of the above
Select an option to see the answer and solution.