Practice Questions

TLS Online TPP Program

#Question id: 11003

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

#XL - T Zoology

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: 4568

#XL - S Microbiology

In Darwinʹs thinking, the more closely related two different organisms are, the

TLS Online TPP Program

#Question id: 15673

#XL - S Microbiology

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?

TLS Online TPP Program

#Question id: 5844

#XL - T Zoology

In homologous genetic recombination, RecA protein is involved in:

TLS Online TPP Program

#Question id: 27447

#XL - R Botany

The four-kingdom classification system was given by

TLS Online TPP Program

#Question id: 3015

#XL - S Microbiology

All the bacterial cells that result from the replication of a single original bacterial organism are said to be a