1
2
3
4
5
100
What is the smallest unit of an organism that can perform life functions?
What is a cell.
100
Which cells are more efficient at obtaining nutrients?
small cells with a high surface area to volume ratio
100
Define Surface area
Total area on the surface of an object.
100
Define Volume of an object.
The amount of material inside the cell. The amount of space something takes up.
100
A small cell has a ________ surface area to volume ratio than a larger cell.
Larger
200
Why do cell need to divide?
There are three answers
Growth, repair, reproduction
200
Which of the following is least efficient?
D
200
How can surface area (SA) be increased?
Grow larger
200
Which of the following has the largest surface area to volume?
A
200
High Surface area to volume ratio allows cells to do what quickly?
There are two answer that you need to come up with.
Move materials in and out of the cell
Communicate
300
A cell has a volume of 64 units and total surface area of 96 units. What is the cell's surface area to volume ratio?
1.5:1
300
Which of the following cells would have the highest surface area to volume ratio?
Number 1
300
Because cell function is so heavily dependent on effectively transporting materials across the cell membrane, cell size is limited due to the need for a ___________ ratio of surface area to volume.
What is high?
300
As a cell becomes larger, its ___________ increases faster than its _______________.
Volume and surface area
300
Define Surface area and give the formula for finding the surface area of a cube
The total area on the surface of an object
L X W X 6 (sides)
400
What are the three main reasons why cells divide?
Growth
Repair
Reproduction
400
Which type of cell will make greater demands for DNA?
A small cell or a large cell
Large cell
400
Which type of reproductions makes a diverse offspring?
Sexual
400
Can a cell be too small? Why or why not?
Yes! If it is too small then the organelles are tightly packed and cannot do their functions.
400
Name three types of asexual reproduction
fission, fragmentation, budding, spore formation
500
What is the largest human cell?
Neuron - up to 1 meter long!!!
500
An intestinal virus infects and destroys cells lining the intestine. Normal intestinal cells have infoldings of the plasma membrane call microvilli where the cells absorb nutrients through the membrane. As cells regrow, the microvilli are short and incomplete. Affected cells are on the left. Which of the following would best describe the effect of the shorter microvilli 
shorter microvilli decrease the surface area of the membranes, which means less absorption of nurtients
500
What is the smallest human cell
Sperm cell
500
What is the largest cell by volume
An ostrich egg
500
Healthy intestinal cells absorb nutrients through their membrane. Above are measurements of 4 different cells. Which of the following would provide the most efficient absorption of nutrients?
Cell 4