★ Respiratory and Circulatory Quiz
The gas that we inhale and is needed by the cells of the body.
A. oxygen
B. nitrogen
C. carbon dioxdie
D. unleaded
Select your answer:
Topics:
Transport System in Man Water Macromolecules Economic importance of Bacteria MEDICINE Nutrition and Human Digestive System Blood Pathology History of Immunology Digestive System Medical Terminology Speed, Flexibility part of Components of Physical Fitness Forensic Pathology Human Brain Nature of Science Science Reproduction Brain, Neurons and The Nervous System Serology/Blood TypingOther quiz:
Neuroanatomy & Physiology › ViewWhich of the following are phasic receptors that are the most sensitive to high-frequency vibrating stimuli?
A. Root hair plexus
B. Tactile discs
C. Lamellated corpuscles
D. Ruffini corpuscles
Carbohydrates › View
Why do humans need cellulose in their diet even though they do not possess enzymes in the digestive system that can break it down?
A. It is required as a precursor to synthesise DNA and proteins.
B. It provides the structural material for cell walls.
C. It acts as dietary fibre to help move food through the digestive system more quickly.
D. It acts as a storage source for energy.