What is the word equation for aerobic respiration in plants?
A.carbon dioxide + water → glucose + oxygen
B.glucose + carbon dioxide → water + oxygen
C.glucose + oxygen → carbon dioxide + water
D.glucose + water → carbon dioxide + oxygen
What helps oxygen to be absorbed rapidly into the blood in the lungs
A.Air breathed in has less oxygen than air breathed out
B.Alveoli have thick walls and a large surface area.
C.Alveoli have thin walls and a large surface area.
D.The concentration of oxygen in the blood is higher than in the alveoli.
Which route is taken by air passing into the lungs of a human?
A.alveolus → trachea → bronchus
B.bronchus → trachea → alveolus
C.trachea → alveolus → bronchus
D.trachea → bronchus → alveolus
what is the word equation for anaerobic respiration of plant
A.glucose + oxygen → carbon dioxide + water
B.glucose → lactic acid
C.glucose → enthanol + carbon dioxide
D.carbon dioxide + water → glucose + oxygen
Which process releases the most energy from one molecule of glucose?
A.aerobic respiration
B. anaerobic respiration in muscle
C.anaerobic respiration in yeast
D.photosynthesis
Other than heat energy, what other form of energy is released from respiration?
where does the gas exchange occur in gas exchange system?
During inhalation, the the diaphragm is moving downward
During exhalation, the pressure inside lungs decreases.
Four metabolic reactions are shown.
1 carbon dioxide + water → glucose + oxygen
2 glucose → ethanol + carbon dioxide
3 glucose → lactic acid
4 glucose + oxygen → carbon dioxide + water
Which reactions take place in human cells to release energy?
A. 1 and 2
B. 1 and 3
C. 2 and 4
D. 3 and 4
which is chemical barrier
A.mucus
B. nasal hair
C.skin
which cells are phagocytes
A. T cells and neutrophils
B. T cells and B cells
C. B cells and macrophages
D. neutropils and macrophages
which is passive immunity
A. injection of dead or weakend virus
B. naturally infected by a pathogen
C. injection of antibodies from healed patients
D. injection of genetically modified microogansims that can initiate immune response.
Macrophage can ___ the pathogen and digest them after the process.
there are normally 4 types of microorganisms that could cause disease to human, they are bacteria, virus, protist and ?
T cell can produce antibodies, which attach to the antigen of pathogen and kill them.
Cholera is a disease caused by certain kind of bacteria.
Most bacterial diseases can be treated with
A.antibiotics
B.antibodies
C.antigen
D.antisocial
the blood contains lymphocytes, what is their purpose ?
A.transport of hormones
B.phagocytosis
C.antibody production
D.sensitivity
the immune system recognizes which part of the pathogen?
A.antibiotic
B.antigen
C.active site
D.antibody