3. It produces RNA strands
Answer: No
Explanation: Cells survive in different ways, A cell from your brain could not survive in a Petri dish for very long. It doesn't have the right pieces to live on its own.
Answer: It will affect muscle contraction because it is needed for the formation of muscle contraction cross-bridge.
Explanation: During muscle contraction calcium binds to troponin, a protein complex that regulates muscle contraction by exposing the binding site of actin filament. Actin filament active site is where myosin head binds to, creating a cross-bridge using enzyme ATPase to speed the reaction. Calcium ion are needed to activate troponin movement, otherwise it stays in its inactive form blocking the active site of actin filament. Without calcium ions, troponin will not move and there will be no muscle contractions.
Answer:
because it needs its plasma membrane to live and if it freezes then it dies