Question

1,Match the descriptions to the type of transport.

-       A.       B.       C.    Water enters a cell because it is hypertonic compared to the extracellular environment, increasing its turgor pressure       -       A.       B.       C.    Water enters guard cells because the guard cells are hypertonic compared to the surrounding cells       -       A.       B.       C.    Potassium ions are pumped into guard cells       -       A.       B.       C.    The motor cells of a Venus fly trap are hypotonic compared to surrounding cells, causing water to leave the motor cells       -       A.       B.       C.    Sugar is loaded into the phloem

A. Both active and passive transport B. Passive Transport C. Active transport

2,Describe what is wrong with the following statement and explain why:

All prokaryotic and eukaryotic cells contain plasma membrane, nucleus, ribosomes, organelles, cytoplasm, and cell walls.

What is short-distance transport?

	a,	The movement of solutes from a region of low concentration to a region of high concentration
		b,The movement of water, nutrients, and other substances between cells
c,		The movement of substances from a region of high concentration to a region of low concentration
d,		The movement of water across a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

What terms describe the movement of water across a semipermeable membrane from a region of high water concentration towards a region of low water concentration (and high solute concentration.)

What is found in the proptoplasm?

		Cell wall, cytoplasm, plasma membrane, nucleus, and other cell organelles
		Plasmodesmata, cell wall, and plasma membrane
		Cell wall, cytoplasm, and plasma membrane
		Cytoplasm, nucleus, and other cell organelles The channels that allow nutrients and protoplasm to pass between plant cells are called _________________. What happens when a plant cell is placed in a hypotonic solution? Water will enter the plant cell and the plasma membrane will swell and cell lysis will occur Water will leave the plant cell and the plasma membrane will pull away from the cell and plasmolysis will occur Water will enter the plant cell and the plasma membrane will swell and push against the cell wall Water will leave the plant cell and the plant cell will lose turgor pressure, causing the plant to wilt ________________ transport uses cellular energy. What molecules make plasma cell membranes hydrophilic on the outside and hydrophobic on the inside? What type of cells do plants have? Bacterial Archaeic Eukaryotic Prokaryotic

Answer 1

1. Water enters a cell because it is hypertonic compared to the extracellular environment, increasing its turgor pressure. Passive transport

Water enters guard cells because the guard cells are hypertonic compared to the surrounding cells. Passive transport

Potassium ions are pumped into guard cells. Active transport

The motor cells of a Venus fly trap are hypotonic compared to surrounding cells, causing water to leave the motor cells. Passive transport

Sugar is loaded into the phloem. Active transport

2. Only eukaryotic cells have organelles, nucleus . Prokaryotic cells do not have membrane bound organelles and nucleus.

3. Short distance transport: b,The movement of water, nutrients, and other substances between cells

What terms describe the movement of water across a semipermeable membrane from a region of high water concentration towards a region of low water concentration (and high solute concentration.)...Osmosis

What is found in the proptoplasm? Cytoplasm, nucleus, and other cell organelles

The channels that allow nutrients and protoplasm to pass between plant cells are called plasmodesmata.

What happens when a plant cell is placed in a hypotonic solution? Water will enter the plant cell and the plasma membrane will swell and push against the cell wall.

_____Active___________ transport uses cellular energy.

What molecules make plasma cell membranes hydrophilic on the outside and hydrophobic on the inside? Phospholipids

What type of cells do plants have? Eukaryotic