Cells1

Question 1

Cell theory states. (3)

Answer 1

1. All living things are made of cells.
2. The cell is the basic unit of life.
3. All cells come from pre-existing cells.

Question 2

Characteristics of living things. (5)

Answer 2

1. Grow, Reproduce, and repair themselves.
2. Require energy.
3. Respond to changes in their environment.
4. Have a lifespan.
5. Produce waste

Question 3

Cytoplasm.

Answer 3

Organelles are suspended in the cytoplasm, and materials are transported through it.

Question 4

Cell Membrane.

Answer 4

Outside of the cell. Controls movement in and out of the cell.

Question 5

Nucleus.

Answer 5

The control centre of the cell. Contains chromosomes that contain the information for the cell to function and reproduce.

Question 6

Vacuole.

Answer 6

Stores water and nutrients.

Question 7

Mitochondria.

Answer 7

The powerhouse of the cell. Converts nutrients into energy that the cell can use.

Question 8

Ribosome.

Answer 8

Makes the synthesized proteins that the cells need.

Question 9

Endoplasmic reticulum.

Answer 9

Holds the proteins made by the ribosomes and packages them in vesicles to travel through the cytoplasm.

Question 10

Golgi body.

Answer 10

Responsible for packaging and further process of proteins.

Question 11

Cell wall.

Answer 11

Allows nutrients, wastes, and water to pass through.

Question 12

Chloroplasts.

Answer 12

The green organelle is the site of photosynthesis. It makes food from the sun’s energy.

Question 13

Types of unicellular organisms.

Answer 13

Bacterium, amoeba, paramecium, euglena.

Question 14

Types of multicellular organisms.

Answer 14

Intestinal, nerve, muscle, blood

Question 15

What is diffusion?

Answer 15

when a substance moves from an area of high concentration moves to an area of low concentration

Question 16

How unicellular organisms move.

Answer 16

Flagellum, cilia, pseudopod.

Question 17

How unicellular organisms eat.

Answer 17

Engulfs the food. Cilia push food into the oral groove. Photosynthesis. Lives off of other animals. Endocytosis.

Question 18

Who invented the compound microscope?

Answer 18

Zacharias Janssen.

Question 19

What did Mirabel do for cell theory?

Answer 19

Plant cells have a continuous membrane.

Question 20

What did Schwann do for cell theory?

Answer 20

Animals and plants are made of cells.

Question 21

Differences between plant and animal cells.

Answer 21

Chloroplasts, cell wall.

Question 22

Why are plant cells green?

Answer 22

Plant cells are green because they have chloroplasts in the cell which are green. If we had chloroplasts in our cells we would also be green.

Question 23

What is the total magnification on a microscope and why?

Answer 23

400x= 10x(ocular lens) X 40x(objective lens)

Question 24

Difference between exocytosis and endocytosis?

Answer 24

Endocytosis is when the cell engulfs the food. Exocytosis is when the cell excretes the waste.

Question 25

Examples of organ systems.

Answer 25

Circulatory, digestive, respiratory.

Question 26

Difference between permeable, semi-permeable, and impermeable.

Answer 26

Permeable is when any substance can go through. Semi-permeable is when only some substances can go through. Impermeable is when no substance can go through.

Question 27

What is osmosis?

Answer 27

The diffusion of H2O occurs across a selectively permeable membrane.

Question 28

Two similarities between unicellular organisms.

Answer 28

Paramecium and amoebas are found in ponds, lakes and rivers. Euglena and amoebas both need oxygen which then turns into carbon dioxide which diffuses out.

Question 29

Two differences between unicellular organisms.

Answer 29

Euglena gets their energy from chloroplasts, paramecium gets their energy from algae and bacteria. Amoebas use a pseudopod to move, Paramecium use cilia to move.