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WorksheetsRevision From TEST has it gone in?
Total questions: 20
Worksheet time: 13mins
Which are not a functions of the liver:
Stores bile
Produces bile
Stores glycogen
Breaks down lactic acid
Stores ammonia
Which are functions of the liver:
Turns excess amino acids into urea
Produces lactic acid
Stores glycogen
Produces Bile
Removes toxins
Enzymes bind to a substrate because they are
a complimentary fit
they are the same shape
they are attracted to each other
they are oppositely charged
Mark all the options true to enzymes:
Are not used up in a reaction
Lower activation energy
Increase activation energy
Are used up in a reaction
The lungs are adapted for diffusion because:
Many alveoli increase the surface area
Alveoli / capillary walls are 1 cell thick providing a short diffusion pathway
Alveoli decrease the surface area
Alveoli / capillary walls are thick providing a long diffusion pathway
Large capillary network to maintain a concentration gradient
The villi are adapted for absorption because:
Many microvilli increase the surface area
Villus/capillary walls are 1 cell thick providing a short diffusion pathway
Cells have mitochondria for active transport to absorb nutrients
Villus/capillary walls are thick providing a long diffusion pathway
Large capillary network to maintain a concentration gradient
Plants are adapted to prevent pathogens infecting them. Thorns & Hairs are an example of a _____defence
mechanical
chemical
projection
Plants are adapted to prevent pathogens infecting them. Toxins are an example of a _____defence
mechanical
chemical
projection
Chlorosis is a yellowing of normally green leaves due to
a lack of chlorophyll-magnesium deficiency
a lack of oxygen
a lack of water
a lack of CO2
Glucose combines with Nitrate ions to form
amino acids
glycerol
starch
cellulose
Plants use proteins for (select all that apply)
growth and repair
to make enzymes
to store in seeds for energy
for cell walls
If a plant contracts a disease that yellow leaves / blacken leaves (select all that apply)
This reduces amount of chlorophyll
This reduces rate of photosynthesis
This reduces the amount of glucose produced
For bacteria to respire aerobically they require (check all that apply)
glucose
oxygen
carbon dioxide
water
Phagocytes
engulf pathogens
produce antibodies
produce anti toxins
produce antigens
Lymphocytes (check all that apply)
engulf pathogens
produce antibodies
produce antitoxins
produce antigens
To produce monoclonal antibodies, a lymphocyte and tumor cell are fused to form a
Teratoma
Hybridoma
Carcinoma
Melanoma
A lymphocyte and tumor cell are fused because (check 2)
Lymphocytes divide slowly
Tumor cells divide rapidly
Tumor cells produce antibodies
Lymphocytes divide rapidly
Identify the uses of monoclonal antibodies
Pregnancy tests
Locate specific molecules
Identify Pathogens
Identify Antigens
Treat cancers
In drug trials the first in human tests are on healthy patients to:
Optimise dosage of the drug
Check the chemical stability of the drug
Check the efficacy of the drug
Check toxicity / side effects of the drug
When testing on patients with the disease the main concern is to (check 2)
Optimise dosage of the drug
Check the chemical stability of the drug
Check the efficacy of the drug
Check toxicity of the drug
