Organelles are compartments inside the cells. eukarya have many more than Bacteria and Archea. a. Name three major organelles that cells in the Eukarya developed and which were still missing in the cells of the Prokarya and Archea? ………………………..    ……………………    ……………………….. b. How did the eukaryote cell get mitochondria or chloroplasts? .................................................................. c. How did the eukaryote cell get a nuclear envelop?  .....................

: Yeast cells adapt to cold environments by and the length of the phospholipid tails the number of saturated fatty acid tails in the plasma membrane. Increasing....... Decreasing b. Decreasing....... Increasing C. Decreasing ....... Decreasing d. Increasing ....... Increasing Bacterial cells adapt to high temperatures by the length and the amount of saturated fatty acid tails in the plasma membrane. Increasing ...... Decreasing b. Decreasing....... Increasing C. Decreasing....... Decreasing d. Increasing....... Increasing

Michael was born with Tay-Sachs disease. Which of the following organelles in Michael’s cells lacks a specific enzyme that digests organic molecules? a. mitochondria b. lysosomes c. Golgi apparatus d. centrioles

The acrosome (acrosomal cap) develops (is formed) from which of the following organelles?   (A) smooth endoplasmic reticulum (B) Golgi apparatus (C) ribosomal endoplasmic reticulum (D) lysosome

26. All of the following are typical components of the plasma membrane of a eukaryotic cell EXCEPT (A) glycoproteins (B) cytochromes (C) cholesterol (D) phospholipids (E) integral proteins 27. The rate of division of most vertebrate cells is LEAST likely to be influenced by which of the following? (A) Contact with other cells (B) The availability of nutrients (C) Compounds that inhibit protein synthesis (D) The cell's photoperiod (E) The temperature of the organism 28. During respiration, most ATP is formed as a direct result of the net movement of (A) potassium against a concentration gradient (B) protons down a concentration gradient (C) electrons against a concentration gradient (D) electrons through a channel (E) sodium ions into the cell 29. Which of the following processes is carried out more efficiently by a C4 plant than by a C3 plant? (A) Light absorption (B) Chemiosmotic coupling (D) Photolysis (D) Fixation of CO, (E) Transport of sugars 30. A biologist isolates numerous…

What is the difference between parts B and C in malia's diagram? (a) Part B is responsible for giving the cell structure and support and part C allows nutrients and waste to enter and leave the cell (b)Part B is responsible for for letting nutrients and waste pass through the cell and part C holds all of the organelles in place (c) both parts B and C are responsible for producing food for the cell (d) there is no difference between B and C, their combined purposes to hold the cell together