The cells of many bacterial species have the ability to differentiate (sometimes permanently) for purposes that enhance species survival in various ways. Such differentiation is typically accompanied by major changes in gene expression or cell structure. Which of the following represents a differentiated cell type? There are at least two correct answers. Choose one or more: A. Anabaena heterocyst B. Bacillus endospore C. flagellated Pseudomonas D. Caulobacter with holdfast E. Staphylococcus cluster F. Streptomyces aerial hyphae G. E. coli siderophore

The bacteria that represents differentiated cell type is  called Bacillus endospore

Explanation:

This bacteria have a special ability to live long in dormant form as their endospore  remain viable for thousand of year.

They form endospore through a process called as Sporulation.

This sporulation requires many steps-

c. the initial amount of money placed in the savings account

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.