Capter 3 - Cells

Question 1

Cell membrane

Answer 1

Is the outer most layer of an cell, that blocks bad viruses from going in

Question 2

Nucleus

Answer 2

The part that controls the cell or known as the brain

Question 3

Cytosol

Answer 3

The fluid inside the cytoplasm is known as cytosol

Question 4

Cell wall

Answer 4

a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.

Question 5

Chloroplasts

Answer 5

oval-shaped organelle found only in plant cells. Chloroplasts contain the pigment chlorophyll. They are the ‘factories’ in which carbon dioxide and water are changed by sunlight and water into food by the process of photosynthesis.

Question 6

Vacuole

Answer 6

sacs within a cell used to store food and wastes. Plant cells usually have one large vacuole. Animal cells have several small vacuoles or none at all.

Question 7

Cell

Answer 7

the smallest unit of life. Cells are the building blocks of living things. There are many different sized and shaped cells in animals and plants, as well as single-celled organisms.

Question 8

Light microscope

Answer 8

instrument for viewing very small objects. A light microscope can magnify things up to 1500 times.

Question 9

Scanning electron microscope

Answer 9

A scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons. The electrons interact with atoms

Question 10

Unicellular

Answer 10

describes an organism having only one cell