Chapter 7: Cell Structure and Transport Kahoot
A cell that has a nucleus, cell wall and ribosomes is most likely...
a plant cell
Which of these is *NOT* part of the Cell Theory? all living things are composed of cells all cells have a nucleus cells are the basic unit of structure and function new cells come from existing cells
all cells have a nucleus
The substance in the plasma membrane that receives chemical signals is...
carbohydrates
a rigid structure that surrounds the cell membrane
cell wall
Active transport requires...
energy
What is the powerhouse of the cell?
mitochondria
Where are you least likely to find water in the plasma membrane?
non polar tails
What is Phagocytosis?
particle transport requires energy from the cell
The cell membrane can best be described as a...
phospholipid bilayer
The process of the plasma membrane pumping sodium against the concentration gradient
Active Transport
When the concentration of molecules on both sides of a membrane is the same, molecules...
Move across in both directions
Prokaryotic cells possess all of the following except... Cell Membrane Ribosomes Cell wall Nuclear Membrane
Nuclear Membrane
acts like the brain of the cell
Nucleus
An animal cell put in a solution shrivels up and dies. The solution most likely had...
A very high concentration of salt
The molecule used for energy in all cell processes, including active transport, is...
ATP
Which of the following is *NOT* passive transport? Calcium ions crossing into a cell with a protein pump Glucose entering a cell via protein channels Water leaving a cell in a hypertonic solution Carbon Dioxide exiting the cell through membrane pores
Calcium ions crossing into a cell with a protein pump
True or False? Endocytosis is a active transport which moves cells out of the cell
False
What acts as a distribution center for proteins?
Golgi apparatus
The lipids that create cell membranes have...
Hydrophilic heads and hydrophobic tails
Plasmolysis (a plant cell shriveling inside the cell wall) occurs in what solution?
Hypertonic
Which of the following molecules is not found in a cell membrane? Carbohydrates Protein Channels Cholesterol Ribonucleic Acid
Ribonucleic Acid
True or False? All cells have a cell membrane
True
True or False? molecules continuously move with no net change during equilibrium
True
Which molecule aids in moving substances across the cell membrane, ex. facilitated transport?
protein
What produces the proteins?
ribosomes