Which of the following is a TRUE statement about membrane phospholipids? A) They
ID: 87110 • Letter: W
Question
Which of the following is a TRUE statement about membrane phospholipids? A) They frequently flip-flop from one side of the membrane to the other. B) They form a viscous fluid through which proteins shift and flow. C) They occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the mci D) They are free to depart from the membrane and arc dissolved in the surrounding solution. E) They have hydrophilic tails in the interior of the membrane. Which of the following statements is a hypothesis rather than a theory? A) Matter is composed of atoms. B) Modern organisms descended from preexisting life-forms. C)Living things are made of cells. D)Female birds prefer to mate with male birds that have longer tails. In the liver, the polysaccharide glycogen is broken down into glucose monomers. The glucose m then released into the blood when blood sugar levels need to be raised. This process is an example of reaction. A) endergonic B) potential C) kinetic D) exergonic All cells possess all of the following components EXCEPT A) a plasma cell membrane. B) genetic material. C) cytoplasm. D) ribosomes. E) a nuclear membrane. Before photosynthesis evolved. was rare in Earth's atmosphere: A) N2 B) CO2 C) O2 D) air E) H2O Which of the following is NOT an organic molecule? A) carbon monoxide B) protein C) lipid D) monosaccharide E) nucleic acidExplanation / Answer
22 ans-B
They form a viscous fluid through which proteins shift and flow and proteins embedded within two layers of phospholipids.the membranes of every cell also contain proteins that extend through the lipid bilayer.
The tails are made of fatty acid chains and are non-polar (hydrophobic).
23 ans-D Female birds prefer to mate with male birds that have longer tails.
tails are long because females prefer them.in other species tails are long for aerodynamic reasons.
24 ans -D- exergonic
Exergonic reaction gives off energy, heat, and proceeds without any external addition of heat or releasing energy in the form of work..These reactions are irreversible reactions which occur spontaneously in nature, and This is also a Catabolic reaction which means the breakdown. This process is also known as glycolysis from cell respiration.Glycogen is breakdown into glucose.
25 ans-E nuclear membrane
the nucleus is surrounded by a nuclear envelope and is composed of two lipid bilayer in which found nuclear pore.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.