Biology, 12.11.2020 20:10 cschellfamily

4. Which of the following best explains how molecules such as O, and CO, can move across the membrane of a cell?
A. The majority of the cell membrane contains protein channels that allow this type of
molecule into the cell.
B. The majority of the cell membrane is nonpolar, which allows small, nonpolar
molecules to freely cross.
C. The phospholipids of the membrane are tightly packed, so only small molecules and
ions can fit between phospholipids

Answers: 2

Show answers

Another question on Biology

Biology, 21.06.2019 19:40

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Answers: 1

Answer

Biology, 22.06.2019 04:40

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

Answers: 1

Answer

Biology, 22.06.2019 05:10

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Answers: 3

Answer

Biology, 22.06.2019 08:00

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

Answers: 2

Answer

You know the right answer?

4. Which of the following best explains how molecules such as O, and CO, can move across the membra...

Questions