Topics: Anatomy & Physiology: Respiratory Quiz
Oxygen enters the blood at the lungs because
A. The partial pressure of oxygen is higher in the blood than in the alveoli.
B. The partial pressure of oxygen is lower in the blood than in the alveoli.
C. Oxygen is attracted to the negative charges of plasma proteins.
D. Low blood pressure does not oppose oxygen movement.
Select your answer:
Topics:
Musculoskeletal System Responses to Exercises Healthcare Careers Bacteriology Lab Culture Media Nutrient Cycling Food and Nutrition Multicellular Organisms Patient-Centered Endocrinology Degeneration Pathology Hospitality Bone Life Processes Human Organ System Organ Senses and Locomotor System Enzymes and Metabolic Pathways Cell InjuryOther quiz:
Gene Expression › ViewWhich of these can cause a gene to be expressed more – that is, can cause more protein to be made from it?
A. removal of methyl groups from the DNA
B. loosening of how tight the DNA is coiled around histones
C. both of these are correct
Muscular System Movements › View
How are muscles attached to bone?
A. Ligaments
B. Cartlidge
C. skin
D. Tendons