Elodea Cell, Onion Cell, Cheek Cell Lab

What was the shape of the plant (onion) cell compared to animal cells (cheek cells)?

• Both were the same

• The plant cell was regular; the animal cell was irregular.

• Both were very similar in shape

• The animal cell was more regular; the plant cell was irregular.

Which organelle help determine shape?

• Cell wall

• Nuclues

• All organelles

• Mitochondria

How is a plant cell and animal cell different in structure?

• Both have the same organelles

• The nucleus is larger in plant than animal

• The cell membrane is larger in plant

• The plant cell has cell wall and chloroplast and animal doesn't.

Tags

NGSS.MS-LS1-2

What function of the cell membrane?

• None

• Keeps organelles separate

• maintains certain concentrations inside the cell

• is the control center of the cell

Tags

NGSS.MS-LS1-2

Which of the following are made mainly of salt and water?

• cell membrane

• cell wall

• cytoplasm

• nucleus

Why are plant (onion) cells more rigid in structure?

• Plants don't move around so cells are more compact and structured.

• Plants need to be loose to bend.

• Plant cells are not rigid

• Plant cells don't have structures like organelles.

In the onion cell which part of the cell was stained the purple?

• cytoplasm

• chloroplast

• nucleus

• cell membrane

What makes up the outer edge of an onion cell?

• plasma membrane

• capsule layer

• cell wall

• unlike the Elodea plant they do not have an outer layer.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

Why dont onions have chloroplast?

• Onions carry out chemosynthesis and use inorganic substances form the soil to make their energy.

• Onions have evolved the ability to gradually move from the ground to the surface and secrete enzymes to carry out extracellular digestion.

• The onion doesn't need them because of its stored chemical energy, but when it starts growing it will use the chemical energy to produce green shoots which have chloroplasts in them.

• Onions are in the ground and are not subject to sunlight therefore they have evolved the ability to be heterotrophs, the plant part of the onion is the autotrophs.

Tags

NGSS.MS-LS1-6

Does this cell represent a regular or irregular cell? Explain your answer.

• This cell is regular because it is an onion cell and lacks a cell wall.

• The cell is an irregular cell because it is a cheek cell and has a cell wall.

• This cell is irregular because it is a cheek cell and lacks a cell wall

• The cell is regular and has a cell wall.

Tags

NGSS.MS-LS1-1