science lesson 3 study guide

list three facts about lysosomes

1. they are found in animal cells 2. they help digest food molecules and remove wastes 3. they protect the cell against invaders

list three facts about central vacuoles.

1. they are found in plant cells 2. they are very large storage areas 3. they provide support to the cell

Are all eukaryotic cells the same size and shape explain.

All eukaryotic cells are not the same size and shape the size and shape of the cell is determined by its function. For example neurons have long protections to send and receive messages to other cells and the rounded shape of blood cells allow them to easily flow through blood vessels.

Do all cells have the same organelles. Why or why not?

No, all cells do not have the same organelles. The organelles the cells have match the functions of cells must perform. For example, Plants must make their own food. Therefore plants cells must have chloroplast.

describe the nucleolus

a rounded structure inside the nucleus where ribosomes are made

what type of cell has a cell membrane?

all cells have a cell membrane

what four things do all cells have ?

cell membrane, cytoplasm, ribosomes, genetic material

list an organisms other than plants that go through photosynthesis

euglena , a protists , can go through photosynthesis

euglena can make their own food. what organelle is required to photosynthesis?

euglena can make fhier own food. they can do this because they have chloroplasts.

what type of cell has membrane-bound organelles?

eukaryotic cells

predict what would happen if plant cells didn't have any cell walls?

if plant cells didnt have a cell walls , they would not have the structure and support needed to survive.

cells are the smallest unit of ___________.

life

cells is made of ____________.

matter ; matter is made if atoms and molecules

Which organelle provides the cell with energy?

mitochondria

what type of cell has a cell wall?

plant cells have a cell wall , animal cells do not. ( other types of cells such as bacteria and fungi may have cell walls as well )

list three things plants cells have that animal cells don't have

plant cells have cell walls , chloroplasts , and central vacuoles.

wh can't animals make thier own food?

thay can't make thier own food because animals cells do not contain chloroplasts. chloroplasts are the organelle required for photosynthesis

what is the endoplasmic reticulum?

the endoplasmic reticulum it begins at the nuclear envelope , has both a rough and a smooth section , and acts as a tunnel of highways

what is the function if the cell membrane?

the function of the cell membrane I'd to control what goes in and out of the cell.

describe the golgi body and its function

the golgi body looks like flattened sacs. it packages proteins to ship out into the cytoplasm

what is the function of vacuoles?

they are storage containers of the cell

is this statement true or false: there are only two types of cells, plant and animal

this statement is false: there are only two types of cells, plant and animal. its false because there are many other kinds of cells , sax such as protists, archae, bacteria and fungi