class 10 biology

Site of Kreb's Cycle is-

• Cytoplasm

• Inner mitochondrial membrane

• Matrix of mitochondria

• Nucleus of cell

Trachea do not collapse because it have-

• Bronchi

• Glottis

• Cillia

• Cartilage ring

Opening of wind pipe is-

• Glottis

• Gullet

• Catilage

• Nostrils

Which of the following is a Voice box-

• Vestibule

• Nostrils

• Pharynx

• Larynx

Common passage for food and air is-

• Larynx

• Pharynx

• Trachea

• Oesophagus