Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Which one of the following is known as the ‘immovable property’ in the cell?
a. Carbohydrate
b. Fat
c. Protein
d. Nucleic acid
Q. The xylem in plants are responsible for
a. transport of water
b. transport of food
c. transport of amino acids
d. transport of oxygen
Q. Which of the following bacterium causes crown gall disease in plants?
a. Bacillus thurigiensis
b. Agrobacterium tumefaciens
c. Pseudomonas fluorescens
d. None of these
Q. Blood is red in colour due to the presence of -
a. Cytochrome
b. Chlorophyll
c. Hemocyanin
d. Haemoglobin
Q. Which one of the following events in a botanical garden is never directly influenced by light?
a. Flowering
b. Photosynthesis
c. Transpiration
d. Fertilization
Q. A group of genes whose activity is coordinated by a DNA site is –
a. operon
b. cistron
c. polysome
d. polypeptide
Q. Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in -
a. peas
b. wheat
c. corn
d. oats
Q. If xylem and phloem are arranged in the same radius, such a vascular bundle is called :
a. collateral
b. bicollateral
c. concentric
d. radial
Q. Amino acids are required for the synthesis of –
a. Alkaloids
b. Lipids
c. Proteins
d. Carbohydrates