题目内容

An animal cell missing glycoproteins on the external surface of its plasma membrane would likely be impared in which function?

A. transporting various ions into the cell
B. cell-cell recognition
C. aiding in enzyme activity
D. attaching to the cytoskeleton

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Winter vegetables like spinach and cabbage can maintain membrane fluidity...

A. by increasing number of unsaturated phospholipids in the membrane.
B. by increasing number of cholesterol molecules in the membrane.
C. by increasing number of saturated phospholipids in the membrane.
D. by changing the proteins of the membrane.

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The cell theory was developed over time by different scientists. Which of these statements is not part of the current cell theory?

A. Cells arise only from existing cells.
B. The cell is the unit of all living things.
C. All cells are surrounded by a membrane.
D. All living organisms are composed of cells.

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This organelle is not part of the endomembrane system. It can be found in plants and algae and is responsible for converting solar energy into chemical energy. This organelle is called...

A. mitochondria.
B. chloroplast.
C. lysosome.
D. vacuole.

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Vacuoles are membrane bound sacs that have different functions in cell maintenance. Which vacuole is found in most mature plant cells?

A. food vacuoles
B. contractile vacuoles
C. central vacuole
D. tonoplast vacuole

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An animal cell missing glycoproteins on the external surface of its plasma membrane would likely be impared in which function?

A. transporting various ions into the cell B. cell-cell recognition C. aiding in enzyme activity D. attaching to the cytoskeleton

Winter vegetables like spinach and cabbage can maintain membrane fluidity...

The cell theory was developed over time by different scientists. Which of these statements is not part of the current cell theory?

This organelle is not part of the endomembrane system. It can be found in plants and algae and is responsible for converting solar energy into chemical energy. This organelle is called...

Vacuoles are membrane bound sacs that have different functions in cell maintenance. Which vacuole is found in most mature plant cells?

A. transporting various ions into the cell
B. cell-cell recognition
C. aiding in enzyme activity
D. attaching to the cytoskeleton