quiz cards for science Flashcards

TEST AND STUDY

1
Q

The lens at the top you can look through(usually 10x or 15x power.

A

Eyepiece lens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Connects the eyepiece to the objective lenses.

A

Tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Supports the tube and connects it to the base.

A

Arm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The bottom of the microscope, used for support

A

Base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Either a mirror or illuminator. Projected up toward the specimen being observed.

A

Light source

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The flat platform where you place your slides.

A

Stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Holds 2 or more objective lenses and can be rotated to easily to change power.

A

Revolving nosepiece

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Typically 4x, 10x, 40x and 100x powers. The greatest power is the longest.

A

Objective lenses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The rotating disk under the stage. It has different sized holes used to intensify and size the cone of light projected upward toward the slide.

A

Diaphragm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Moveable clips used to hold the microscope slide in place and so it won’t move.

A

Stage clips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Moves the nosepiece in large increments and brings the specimen into approximate focus.

A

Course adjustment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Moves the nosepiece more slowly for precise final focusing.

A

Fine adjustment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the basic unit of structure and function in all living things.

A

The cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Located outside of the cell membrane. A ridged thicker structure which protects the cell. gives plant cells their shape

A

Cell wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The outer larger layer covering of the cell it is double layered.

A

Cell membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Storage containers for water, food and other things the cell needs.

A

Vacuoles

17
Q

Allows plants to make food through the process of photosynthesis.

A

Chloroplast

18
Q

The powerhouse of the cell. Supplies energy to the entire cell.(The generator).

A

Mitochondria

19
Q

The gel-like material which takes up all the free space in the cell. Where the life takes place.

A

Cytoplasm

20
Q

The brain of the cell. Controls the activities of the cell.

A

Nucleus

21
Q

Small ball-like structures in the cytoplasm on which proteins (RNA) are made.

A

Ribosomes

22
Q

Can be rough or smooth. Rough ER has ribosomes attached to it. Responsible for the folding and transporting of portions

A

ER

23
Q

Make up most of the space in the nucleus. Made of proteins and DNA.

A

Chromosomes

24
Q

The vacuum of the cell. Contains digestive enzymes to break down foreign substances that enter the cell.

A

Lysosomes

25
Q

The delivery system of the cell. Controls the import and export of substances.

A

Golgi body

26
Q

Things that have all the characteristics of life.

A

Organism

27
Q

What are the 6 traits of an organism so it can be considering a living thing

A

organization, growth and development, reproduction, response to stimuli, homeostasis and use of energy.

28
Q

Who created the microscope?

A

Anton Van Leevwenhoek

29
Q

Who made one of the best discoveries in the 1600’s. He also observed and named cells.

A

An English scientist named Robert Hooke.

30
Q

What are the steps of the scientific method

A
  1. Define the problem/ asking a question
  2. Form a hypothesis
  3. Experiment/ test hypothesis
  4. Analyze results
  5. Draw conclusions
  6. Communicate results
31
Q

What is the independent variable.

A

It is the variable that is deliberately changed by the scientist.

32
Q

What is the dependent variable.

A

It depends on the independent variable and it is the one being observed.

33
Q

What are the constants.

A

They are the things staying the same.