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Bio 205 Exam 1 Verified A+

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Bio 205 Exam 1 Verified A+ basic units of life that compose all living things ️Cells characteristics shared by all cells ️-Cells are composed of 4 major macromolecules -Genetic material is carried and stored in the form of DNA -DNA is transcribed into RNA and RNA is translated into proteins...

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  • October 20, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
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  • Bio 205 Exm 1 Verified A+
  • Bio 205 Exm 1 Verified A+
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Bio 205 Exam 1 Verified A+

basic units of life that compose all living things ✔️Cells



characteristics shared by all cells ✔️-Cells are composed of 4 major macromolecules

-Genetic material is carried and stored in the form of DNA

-DNA is transcribed into RNA and RNA is translated into proteins

-Their appearance, behavior, and function is dictated by proteins

-They reproduce on their own

-Respond to stimuli

-Adapt to their environment

-Are highly organized

-Maintain a constant internal environment



How are prokaryotes similar to chloroplast and mitochondria? ✔️-Contain their own DNA

-Reproduce on their own



How might an early anaerobic eukaryote have benefited from taking up a bacterium? ✔️Use oxygen to
produce energy



Use sunlight to produce food molecules



How did the engulfed bacteria/mitochondria benefit from being taken up by an early anaerobic
eukaryote? ✔️Engulfed bacteria live in the safe environment of the early eukaryotic cell



Largest (9) to Smallest (1)

_____ adenine

_____ x-chromosome

, _____ Phage

_____ tRNA

_____ sperm

_____ coffee bean

_____ sesame seed

_____ mitochondria

_____ E.coli bacterium ✔️9- coffee bean

8- sesame seed

7- sperm

6- X chromosome

5- mitochondria

4- E. coli

3- phage

2- tRNA

1- adenine



Cell ___________ fits ____________. ✔️structure, function



Four methods to lysing cells ✔️-High frequency sound lyses cells

-Mechanical force shears cells

-Detergent lyses cells by puts holes in the plasma membrane

-Cells forced through a small hole using high pressure break open



What is the term used to describe the thick soup of cell extract produced when cell are broken open?
✔️homogenate



What is the technique that separates a homogenate into different parts? ✔️centrifugation

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