Cells and Systems (unfinished)

Question 1

How are cells, organs, systems and tissues organized?

Answer 1

Systems are made up of organs; organs are made up of tissues, and tissues are made up of cells.

Question 2

A giraffe uses its mouth to obtain food. What corresponding plant structure performs this same function?

• Leaves
• Trunk
• Branches
• Flowers

Answer 2

leaves

Question 3

A cell can be best described as..

Answer 3

the basic unit of all life

Question 4

Which of the following statements is NOT a part of the Cell Theory you learned in class?

• Cells come from existing cells
• All living things are made up of cells
• Cells reproduce with other cells in order to make new ones
• Cells perform all of the life processes

Answer 4

Cells reproduce with other cells in order to make new ones

Question 5

If the eyepiece has a magnification of 10x, what would be the total magnification if a student was using the medium powered objective lens?

Answer 5

100x

Question 6

Which of the following microscopes would be most appropriate to use in order to produce a 3-dimensional image of the sample being viewed?

Answer 6

Scanning Electron Microscope (SEM)

Question 7

Examine the following scenarios and identify the one where a microscope is being incorrectly used.

• You move a microscope from one part of the lab to another, and carried the microscope with two hands, one on the arm and one on the base.
• You magnify a sample being viewed on high magnification by turning the coarse focus knob until the image comes into focus
• You want to switch from low magnification to medium magnification, and uses the rotating nosepiece to switch to the new objective lens
• You can’t see the sample on her slide very clearly and adjusts the diaphragm under the stage to allow more light to reach the slide

Answer 7

You magnify a sample being viewed on high magnification by turning the coarse focus knob until the image comes into focus

Question 8

the function of the Nucleus is to..

Answer 8

store water and nutrients for the cell

Question 9

An animal cell would die if its mitochondria were not functioning properly because:

Answer 9

there would be no energy to perform the cells functions

Question 10

Which part of the cell allows water, air, food, and waste to move in or out of the cell?

Answer 10

membrane

Question 11

Define Osmosis

Answer 11

The transfer of water from low to high

Question 12

In which of the following situations is diffusion INTO a cell the most likely to happen?

Answer 12

When there is a high concentration outside the cell and a low concentration inside.

Question 13

Why is it best for cells to remain small?

Answer 13

Small cells can move food, water, nutrients and waste around to where it needs to go more quickly and easily

Question 14

stalk of celery is placed in the glass of coloured water, and eventually the leaves of the celery stalk begin to change colour. This means that the food coloring

Answer 14

moved in and up the xylem of the plant through osmosis

Question 15

Specialized cells that work together with other specialized cells to perform the same job or function generally form a(n) ________________

Answer 15

Tissue

Question 16

Why do animal cells have more mitochondria than plant cells?

Answer 16

Animals require more energy than plants

Question 17

All of the following are considered advantages that multicellular organisms have over unicellular ones EXCEPT FOR:

• Ability to survive some cells dying
• Grow very large
• Ability to get food and nutrition more easily
• Specialized functions and work in harmony with other cells

Answer 17

Ability to get food and nutrition more easily