Biology 1

Question 1

Hypertonic

Answer 1

the concentration solution is higher than then inside the cell

Question 2

Hypotonic

Answer 2

the concentration of solution is lower than that inside the cell

Question 3

Isotonic

Answer 3

the concentration of solution is the same as that inside the cell

Question 4

Osmosis

Answer 4

Osmosis is the diffusion high concentration of water to a low concentration of water

Question 5

flaccid

Answer 5

Lacking in stiffness or strength. Soft and floppy

Question 6

Turgid

Answer 6

enlarged and swollen with water

Question 7

Plasmolyed

Answer 7

a plant cell losing water therefore shrinking its cytoplasm and plasma membrane away from the inside of its cell wall

Question 8

Passive transport

Answer 8

relies on the natural kinetic energy of molecules and diffusion gradient

Question 9

Active transport

Answer 9

Is the movement of substances from an area of low concentration to an area of high concentration PROCESS NEEDS ENERGY

Question 10

MRS GREN

Answer 10

Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrients

Question 11

Mrs GREN M

Answer 11

Movement: to find food, mates and new areas to occupy

Question 12

Mrs GREN R1

Answer 12

Respiration: to release energy from food so the cell can do work.

Question 13

Mrs GREN S

Answer 13

Sensitivity: to respond to changes in the environment to increase the chance of survival.

Question 14

Mrs GREN G

Answer 14

Growth: an increase in size or number of cells so the organisms get bigger.

Question 15

Mrs GREN R2

Answer 15

Reproduction: so the species survives and does not go exstinct.

Question 16

Mrs GREN E

Answer 16

Excretion: removing toxic waste from chemical reactions in cells (metabolism)

Question 17

Mrs GREN N

Answer 17

Nutrients: a source of chemical energy for respiration so the cell can function and carry out work.

Question 18

Respiration

Answer 18

organisms exchange gases with the environment

Question 19

Glucose

Answer 19

Glucose is the main type of sugar in the blood and is the major source of energy for the body’s cells

Question 20

Cell organelles

Answer 20

a subcellular structure that has one or more specific jobs to perform in the cell

Question 21

Eukaryote cells

Answer 21

any cell or organism that possesses a clearly defined nucleus

Question 22

Prokaryote cells

Answer 22

any organism that lacks a distinct nucleus and other organelles due to the absence of internal membranes.

Question 23

Bacterial cells

Answer 23

prokaryotes, lacking membrane-bound organelles

Question 24

Yeast cells

Answer 24

single-celled fungi

Question 25

Animal cell 5 parts

Answer 25

Ribosomes Mitochondria Cytoplasm Nucleus Cell membrane

Question 26

Plant cell 8 parts

Answer 26

Ribosomes Mitochondria Cytoplasm Nucleus Cell membrane Cell wall Vacuole Green chloroplasts

Question 27

Ribosomes

Answer 27

All proteins needed in cells are made here.

Question 28

Mitochondria

Answer 28

Organelles that release most of the cells energy during respiration

Question 29

Cytoplasm

Answer 29

Respiration occurs here-

Question 30

Nucleus

Answer 30

Controls the functions and activities of a cell. Contains the instructions for making new cells or new organisms

Question 31

Cell wall

Answer 31

Made of cellulose for strength and support

Question 32

Chloroplasts

Answer 32

help plants photosynthesis.

Question 33

Cell membrane

Answer 33

Controls movement of substances in and out of the cell.

Question 34

Vacuole

Answer 34

A space in the cytoplasm for storage

Question 35

Calculating the mean of an onion cell

Answer 35

1 cell= diameter of field of view (um) Number of cells across field of view

Question 36

Surface area to volume ratio

Answer 36

surface area cm2 Volume cm2

Question 37

Image =

Answer 37

Actual x Magnification

Question 38

Actual=

Answer 38

Image / magnification

Question 39

Magnification

Answer 39

Image / actual

Question 40

% change in mass

Answer 40

Change in mass Original mass. X100

Question 41

3 better things about electric microscope

Answer 41

Higher resolution Higher magnification Can produce 3d images

Question 42

3 better thing about light microscope

Answer 42

Cheaper Larger sub cellular structures allowed

Question 43

Resolution

Answer 43

The picture that is seen when we look down the microscope

Question 44

Label all 12 parts of the light microscope

Answer 44

Barrel Eye piece Nose piece Arm Objective lense Stage clip Stage Condenser Light Corse focus helped Fine focus wheel Base