2 Cells

Question 1

Living organisms are made of …

Answer 1

cells

Question 2

Describe and compare the structure of plant cells vs animal cells

Answer 2

cell wall, nucleus, cytoplasm, chloroplasts, vacuoles and location of the cell membrane

Question 3

Functions of cell wall, nucleus, cytoplasm, chloroplasts, vacuoles, cell membrane

Question 4

Ciliated cells: structure & function

Answer 4

movement of mucus in the trachea and bronchi

Question 5

Root hair cells: structure & function

Answer 5

absorption

Question 6

Palisade mesophyll cells: structure & function

Answer 6

photosynthesis

Question 7

Red blood cells: structure & function

Answer 7

transport of oxygen

Question 8

Sperm and egg cells: structure & function

Answer 8

reproduction

Question 9

Formula for calculating magnification

Answer 9

I = AM
Image = Actual x Magnification

Question 10

Define diffusion

Answer 10

the net movement of particles from a region of their higher concentration to a region of their lower concentration down a concentration gradient, as a result of random movement

Question 11

4 factors that influence the rate of diffusion

Answer 11

surface area, temperature, concentration gradients and diffusion distance

Question 12

Substances move in and out of cells by _________ through the ____ ________

Answer 12

diffusion, cell membrane

Question 13

Water diffuses through partially permeable membranes by …

Answer 13

osmosis

Question 14

Define osmosis

Answer 14

the net movement of water from a region of higher water potential to a region of lower water potential, through a partially permeable membrane

Question 15

Explain the effects on plant tissues of immersing them in solutions of different concentrations

Answer 15

use the terms turgid, turgor pressure, plasmolysis and flaccid

Question 16

Explain the importance of water potential and osmosis in the uptake of water by plants

Question 17

Explain the importance of water potential and osmosis on animal cells and tissues