Biology cell

The phospholipid molecules in cell membrane are amphipathic.

BECAUSE

The hydrophilic heads of the phospholipids are in the interior and their hydrophobic fatty acid chains are at the two surfaces of the bilayer.

• benar, benar berhubungan

• benar, benar tidak berhubungan

• salah, benar

• benar, salah

• semua salah

Chromosome duplication takes place during ....

  

• Metaphase

•   Prophase

• Telophase

• Interphase

• Anaphase

The number of chromosomes of a cell during metaphase I of meiosis when the cell has 6 chromosomes during interphase is ….

• 3

• 6

• 12

• 24

• 36

The term that describes a constant physical condition of cell is known as ....

   

• Homeostasis

•    Protein pump

• Osmosis

•   Facilitated diffusion

• Diffusion

This cell is in which stage of mitosis?

• Metaphase

• Prophase

• Telophase

• Interphase

• Anaphase

This cell is in which stage of ...

• Meiosis I, Telofase I

• Meiosis I, Anafase I

• Meiosis II, Telofase II

• Meiosis II, Anafase II

• Meiosis II, Metafase II

How many chromosomes are shown in this picture? How many chromatids?

• 5 chromosomes, 5 chromatids

• 5 chromosomes, 10 chromatids

• 10 chromosomes, 5 chromatids

• 5 chromosomes, 5 chromatids

• 10 chromosomes, 10 chromatids

A plant cell has a 5% percent salt concentration. It is placed into a solution containing a 12%, percent salt concentration.

What will happen to the plant cell?

• Water will move out of the plant cell, causing it to shrivel.

• Water will move into the plant cell, causing it to swell and burst.

• Water will move into the plant cell, causing it to shrivel.

• Water will move out of the plant cell, causing it to swell and burst.

Protein synthesis in eukaryotic cells occurs in the RE.

BECAUSE

RE can be found in prokaryotic cells.

• benar, benar berhubungan

• benar, benar tidak berhubungan

• benar, salah

• salah, benar

• semua salah

Secondary spermatocyte cell is haploid cell.

 

BECAUSE

 

Secondary spermatocyte cell undergeos meiosis.

 

• benar,benar berhubungan

• benar, benar tidak berhubungan

• benar, salah

• salah, benar

• semua salah