Practice Questions

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#Question id: 11003

Which of the following statements about cardiac muscle is most accurate?

#Unit 7. System Physiology – Animal

The T-tubules of cardiac muscle can store much less calcium than T-tubules in skeletal muscle
The strength and contraction of cardiac muscle depends on the amount of calcium surrounding cardiac myocytes
In cardiac muscle the initiation of the action potential causes an immediate opening of slow calcium channels
Cardiac muscle repolarization is caused by opening of sodium channels

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TLS Online TPP Program

#Question id: 29473

#Unit 6. System Physiology – Plant

Strigolactones in roots

a. reduce adventitious formation

b. reduce lateral root formation

c. promote root hair growth

d. reduce root hair growth

Which of the following is correct

TLS Online TPP Program

#Question id: 4092

#Unit 3. Fundamental Processes

An experimental setup provided the assay for identifying factors that facilitate transcription in the presence of chromatin. A factor called FACT (facilitates chromatin transcription) functions as

TLS Online TPP Program

#Question id: 2344

#Unit 2. Cellular Organization

The release of insulin from certain human cells is an example of

TLS Online TPP Program

#Question id: 31227

#Unit 2. Cellular Organization

Fission yeast cells carrying a CDK1 mutation in which the tyrosine-15 residue is replaced by phenylalanine, what will be the result?

a) Shows larger than normal cells

b) Shows smaller than normal cells

c) allows the phosphorylation of phenylalanine and normal cell proliferation are seen

d) premature mitotic CDK activation and entry into mitosis