Biology
Which of the following statements is false about nutrition?
(a) Nitrogen and phosphorus are macronutrients
(b) Plant hormones are nutrients
(c) Manganese and molybdenum are micronutrients
(d) Nutrition provides energy for carrying out various functions.
(b) Plant hormones are nutrients
Where does the light reaction takes place?
a. Grana
b. Stroma
c. Cytoplasm
d. Endoplasmic reticulum
a. Grana
The Chemical formula of glucose is?
a) C6H12O6
b) C6H11O5
c) C6H12O5
d) C5H12O6
a) C6H12O6
The mass of one Avogadro number of helium atom is ?
Mass number =4
Avogadro number =6.023×1023
a) 4×6.023×1023 gram
b) 6.023×1023
c) 2×6.023×1023
d) 3×6.023×1023
a) 4×6.023×1023 gram
Name the type of radiation that will be most effective for the emission of electrons from a metallic surface.
o A.Ultraviolet rays
o B.Radio waves
o C.Infrared
o D.Microwaves
A.Ultraviolet rays
Which one of the following is not a bacterial disease?
(a) AIDS
(b) Dengue
(c) Measles
(d) All of the above
(d) All of the above
Genes of Tobacco Mosaic Virus are _______.
a. Double-stranded RNA
b. Single-stranded RNA
c. Double-stranded DNA
d. Proteinaceous
b. Single-stranded RNA
The most Electronegative element is ?
a) Fluorine
b) Oxygen
c) Li
d) Na
a) Fluorine
The nucleus of a Hydrogen atom consists of ?
a) One proton only
b) One Proton and one Neutron
c) Two Electrons
d) One proton and one electron
a) One proton only
When electromagnetic radiation with a wavelength of 350 nm falls on a metal, the maximum kinetic energy of the ejected electrons is 1.20 eV. What is the work function of the metal?
o A.1.3 eV
o B.2.4 eV
o C.5.4 eV
o D.5.7 eV
B.2.4 eV
Which of the following diseases is also called as
“Salmonella enteric a serotype Typhi”?
(a) Typhoid
(b) Malaria
(c) Diarrhea
(d) Yellow fever
(a) Typhoid
A plant that has seeds but no flowers and fruits?
a. Bryophytes
b. Gymnosperms
c. Mosses
d. Pteridophytes
b. Gymnosperms
The luster of metal is due to the presence of ?
a) Electrons
b) Protons
c) Neutrons
d) No one
a) Electrons
How many electrons that can occupy S-orbital?
a) Two
b) Five
c) Six
d) Ten
a) Two
C
alculate the wavelength of a photon with 3.2 × 10–19 J of energy.
o A.210 nm
o B.420 nm
o C.530 nm
o D.620 nm
A.210 nm
If a plant with genotype AaBb is self-fertilized, the probability of getting AABB genotype will be (A and B are not linked)
1. ½
2. ¼
3. ⅛
4. 1/16
4. 1/16
What type of molecules can easily pass through the cell membrane?
a) Large polar molecules
b) Ions
c) gases
d) Proteins
c) gases
The Most malleable metal is ?
a) Gold
b) Copper
c) Iron
d) Tungsten
a) Gold
A Solution with PH equals 12 is ?
a) Strong base
b) Weak base
c) Strong acid
d) Weak acid
a) Strong base
What things affect the amount of kinetic energy an object has?
o A.Distance and time
o B.Weight and distance
o C.Mass, height, and speed
o D.Mass and speed
D.Mass and speed
H2 donor during photosynthesis is
a. ATP
b. NADP
c. NADPH
d. NADH
c. NADPH
Which of the following is the most essential nutrient for a woman during her initial stages of pregnancy to prevent birth defects?
(a) Thiamin
(b) Folic acid
(c) Vitamin C
(d) Vitamin E
(b) Folic acid
The monomer of polythene is ?
a) Ethylene
b) Propylene
c) Styrene
d) Propene
a) Ethylene
In the periodic table, which term identifies a horizontal row?
a) Period
b) Columns
c) Groups
d) Columns and groups
a) Period
Which of the following situations describes inertia?
o A.A stationary object tends to resist being moved.
o B.A moving object tends to resist a change in speed.
o C.A moving object tends to resist a change in direction.
o D.All of the above
D.All of the above