Science B2

Question 1

function of eyepiece and proper care

Answer 1

function- contains lens that magnifies (place to view, ocular lens)
care- try to keep both eyes open

Question 2

function of course adjustment knob and proper care

Answer 2

function- moves stage up or down to focus on object to make it clearer
care- use only when using the lowest power lens

Question 3

function of fine adjustment knob and proper care

Answer 3

function- brings the object into focus

care- use w/ any lens but mainly with high and medium power

Question 4

function of revolving nose piece and proper care

Answer 4

function- holds the three objective lens, rotates to choose lens
care- avoid getting it dirty and clean properly

Question 5

function of stage and proper care

Answer 5

function - supports and holds the slide and allows you to view the object
care-keep stage dry

Question 6

function of diaphragm and proper care

Answer 6

function - has holes that let amounts of light pass, adjusts light

Question 7

function of stage clips and proper care

Answer 7

function - holds the slide firmly on the stage

Question 8

function of lamp and proper care

Answer 8

function - supplies the light that passes through the object you are viewing
care - if using mirror avoid reflection of direct sunlight in the microscope as this can damage your eyes

Question 9

function of arm and proper care

Answer 9

function - allows you to carry the microscope securely, support for body tube
care - when carrying the arm be sure to have your hand on the base as well

Question 10

function of base and proper care

Answer 10

function - foundation for the scope
care - when carrying be sure to hold the arm and base

Question 11

low, high and medium magnification

Answer 11

low- 4x10=40
high- 40x10=400
medium- 10x10=100

Question 12

nucleus

Answer 12

the command Center, controls all activity in the cell, large dark circle near middle of the cell

Question 13

cell wall

Answer 13

only in plant cells, provides support for cell, ridged frame like shape covering cell membrane

Question 14

cell membrane

Answer 14

thin line that surrounds the whole cell, prevents material coming in or out. Gateway to the cell.

Question 15

cytoplasm

Answer 15

liquid inside the cell with grainy bits, contains all material and nutrients

Question 16

vacuoles

Answer 16

animal - nutrients and water is stored here, has multiple vacuoles
plants - only has one large vacuole

Question 17

chloroplasts

Answer 17

only in plant cells, converts energy from sun into food, located on outer edge of plant cell

Question 18

mitochondria

Answer 18

creates energy for the cell “power plant” looks like a jelly bean

Question 19

organelles

Answer 19

tiny cellular structure that performs specific functions within a cell (similar to how body organs perform different functions)

Question 20

microorganism

Answer 20

unicellular organism that can be seen only through a microscope

Question 21

Mycoplasma

Answer 21

type of microscopic organism that looks like a worm

Question 22

Diffusion

Answer 22

the moment particles move from an area of high to low concentration. Continues until all molecules are evenly spaced. (Equilibrium is reached) Molecules will still move around but are spaced out.

Question 23

osmosis

Answer 23

diffusion of water through a permeable membrane

Question 24

Unicellular

Answer 24

single cell, can eat, move and react to stimuli, get rid of waste products and reproduce

Question 25

Multicellular

Answer 25

two or more cells - rely on many specialized cells to preform functions like eating, moving and so on. As a result all cells react to one another.

Question 26

Cilia

Answer 26

hair like structure covering the Paramecium (cell). Helps to gather food.

Question 27

Pseudo-pods

Answer 27

Amebas move around using foot-like projections called pseudopods. Used to capture food.

Question 28

Amoeba reproduction

Answer 28

When the amoeba reaches the limit in size, they divide into two.

Question 29

Paramecium reproduction

Answer 29

cell splits

Question 30

Organs animal

Answer 30

Animal - connective, epithelial,

nervous, and muscle tissues.

Question 31

Organs - Plant

Answer 31

photosynthetic/storage, protective, and transport. (leaves, roots and stems).

Question 32

Connective Tissue and Epithelial Tissue

Answer 32

Connective tissue - supports and connect different parts of the body - blood, fat, cartilage, bones, and tendons
Epithelial Tissue - covers the surface of your body and the outside of your organs (like skin)

Question 33

Muscle Tissue and Nervous Tissue

Answer 33

Muscle Tissue - allows you to move

Nervous Tissue - makes up the brain, spinal cord and nerves

Question 34

Photosynthetic/Storage Tissue

Answer 34

uses sunlight to produce sugar that plants use for energy (leaves)

Question 35

Transport Tissue

Answer 35

as the roots and the stems - tube like cells with hallow centre - phloem transports food from leaves - Xylem transports water from roots

Question 36

Protective Tissue

Answer 36

water proof layer, protects the plant (stem)

Question 37

How do amoebas move around in the water

Answer 37

move around using foot like projections Pseudopods. They extend a a pseudopod and the cytoplasm streams into it.

Question 38

How does paramecium move in water

Answer 38

the Cilia moves back and forth in the water

Question 39

What are the 3 organ of the plant?

Answer 39

Photosynthetic, Protective, Transport

Question 40

What kind of tissue supports and connects different parts of the body?

Answer 40

Connective tissue - supports and connect different parts of the body - blood, fat, cartilage, bones, and tendons

Question 41

What kind of tissue covers the surface of your body and lines the inside of some of your organs?

Answer 41

Epithelial Tissue - covers the surface of your body and the outside of your organs (like skin)

Question 42

What kind of tissue makes up the brain, spinal cord and nerves

Answer 42

Nervous Tissue - makes up the brain, spinal cord and nerves

Question 43

What kind of tissue allows you to move your body blood through your heart and move food along your intestines

Answer 43

Muscle Tissue - allows you to move