Chapter7

1: What is homeostasis?

When internal condition are not stable

When internal conditions are stable

2: What are five ways materials can move across the cell membrane?

Homeostasis, photosynthesis, passive transport, active transport

Osmosis, Homeostasis, Passive transport, Active transport

Lipid Diffusion, Osmosis, Passive Transport, Active Transport, Vesicles

3: What is Plasmolysis?

The growth of cells

Makes proteins

Shrinkage or contraction of the protoplasm away from the wall of a living plant or bacterial cell, caused by loss of water through osmosis.

4: What is this?

SER

Vacuole

Cytoskeleton

Golgi

5: What is this?

Vacuole

Nucleus

Cytoskeleton

RER

6: What is Active transport?

When molecules move down in concentration rate

A kind of transport wherein ions or molecules move against a concentration gradient, which means movement in the direction opposite that of diffusion – or – movement from an area of lower concentration to an area of higher concentration.

7: Examples of ions

Cl, N, C, H

Na,Cl, K, Ca2

8: What is osmosis?

Is when the process in which fluid Does not pass through

Osmosis is a process in which a fluid passes through a semipermeable membrane, moving from an area in which a solute such as salt is present in low concentrations to an area in which the solute is present

9: Give an example of diffusion

Water

Perfume

10: What is osmosis?

Is when the process in which fluid Does not pass through

Osmosis is a process in which a fluid passes through a semipermeable membrane, moving from an area in which a solute such as salt is present in low concentrations to an area in which the solute is present

11: Give an example of diffusion?

Water

Perfume

12: What is diffusion?

The active movement of molecules along the concentration gradient

The passive movement of molecules or particles along a concentration gradient, or from regions of higher to regions of lower concentration.

13: List four types of passive transport

Osmosis, facilitated, mitochondria, proteins

Diffusion, osmosis, Facilitated, ion channel

14: What is this?

Rough ER

Smooth ER

15: What is this?

Rough ER

Smooth ER

16: What cytolysis

Results in making proteins

Cytolysis is a cell death which occurs as the result of a rupture in the cell's membrane

17: What is hypotonic environment?

Having a lower degree of tension in an area

Having a greater degree of tone or tension in an area

18: What way water move in hypotonic environment?

Low water ->high water

High water -> low water

19: What is facilitated diffusion?

Is an active transport that does not let substance pass through the membrane

Facilitated diffusion is a type of passive transport that allows substances to cross membranes with the assistance of special transport proteins.

20: What determines water movement during osmosis?

The concentration

Diffusion

21: Is facilitated diffusion passive or active transport?

Active transport

Passive transport

22: What is isotonic environment?

Pertains to a muscular contraction in which the muscle remains to be in a relatively constant tension while its length changes, as in isotonic muscle.

High concentration