Practice MCQ Questions and answers on Biology-GK

Fusion of two gametes is called fertilization.

Flowers in which pollination takes place by insect their pollen grains are rough and sticky.

Ornithology, a branch of zoology dealing with the study of birds.

Pollination can be best defined as the transfer of pollen from the male anther of a flower to the female stigma to produce new offspring.

Self pollination will lead to inbreeding.

Chiropterophily or bat pollination is the pollination of flowering plants by bats. Plants adapted to use bats or moths as pollinators typically have white petals, strong scent and flower at night, whereas plants that use birds as pollinators tend to produce copious nectar and have red petals.

Lack of oxygen may cause the breakdown of pyruvate into lactic acid in our muscles.

Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor.

ATP compound directly provides energy for cellular work.

The outer surfaces of the lungs are covered with a membrane called the pleura.