Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Science 8 > Unit 2 > Flashcards

Unit 2 Flashcards

(59 cards)

Start Studying
1
Q

What are the ?5 characteristics of all living things?

A

-Energy-Environment-Reproduction-Growth-Waste

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

Major organs are made from what?

A

tissue

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

What is the basic unit of every system?

A

Cell

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

What is the smallest thing scientists consider to be alive?

A

Cell

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

In a pant, it is the responsibility of what system to help make food for the plant?

A

the shoot system (stems and leaves)

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

A Dutch merchant named________________ made instruments called microscopes.

A

Anton vee Leeuwenhoek

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

What did Anton vee Leeuwenhoek call unicellular organisms?

A

Animalcules

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

What are the 2 points of the cell theory that was brought about by Schleiden and Schwann and Rudolf Virchow?

A
  1. All living things are composed of one or more cell2. Cells are the basic units of structure and function in all organisms
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What should you never use on medium or high power of a microscope?

A

Coarse Adjustment Knob

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

What holds the eyepiece and objective lenses at proper working distance from each other?

A

The tube

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

What is another name for the eyepiece?

A

Ocular lens

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

The holes on the _____ _____ you turn are called the _______ and they help control the amount of light that reaches the slide.

A

condenser lensdiaphragm

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

What are the two structure that a plant cell does have but an animal cell does not?

A

cell wallchloroplasts/chlorophyll

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

What are the different structures of a cell called?

A

organelles

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

What are the storage places for food, waste and other substance a plant doesn’t use right away called?

A

Vacuoles

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

The structures in which photosynthesis takes place are called ___________.

A

Chloroplasts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the diffusion of water through a semi-permeable membrane?

A

Osmosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is it called when a cell membrane only lets certain things through?

A

Semi-Permeable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Water moves from areas of _____ to _____.

A

HighLow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the tissues inside a plant that transport materials, and connect the roots to the leaves?

A

Vascular tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the tissues called that transport sugars?

A

Phloem Tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the tissues that transport water, nutrients, and minerals?

A

Xylem Tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is transpiration?

A

When a plant ‘sweats’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Where does transpiration in plants occur?

Study These Flashcards
A

under the leaves through the stomata

25
What can affect the rate of transpiration in a plant?
Drought
26
What are the three advantages of multicellular organisms over unicellular organisms.
1. More complex (Larger/Specialized)2. Live in many different environments3. Can eat a variety of different foods
27
Cells with the same structure and function are called _______.
Tissue
28
Groups of different tissues form ________.
Organs
29
Organs work together in _______.
Systems
30
Systems work together to form an ____________.
Organism
31
What is the tissues that protects the outside of a plant?
Epidermal tissue
32
What is the tissue that protects the outside of our bodies?
Epithelial tissue
33
What are the 3 systems in a plant?
1. Root System2. Shoot System3. Reproductive System
34
What are the parts in the root system?
-roots-root hairs
35
What are the parts in the shoot system?
-stems-leaves
36
What are the parts in the reproductive system?
-flowers-fruit-seeds
37
What are the 2 functions of the root system?
-obtain water and minerals from the soil-anchor the plant in the ground
38
What is the function of the shoot system?
To make food for the plant (photosynthesis)
39
What are the 5 major systems in the human body?
DigestiveRespiratoryCirculatoryNervousExcretory
40
What does the Digestive system do?
Breaks down food, absorbs food particles, and eliminates waste.
41
What does the Respiratory system do?
Exchanges oxygen and carbon dioxide
42
What does the circulatory system do?
Circulates blood, transports food particles, dissolved gases and other materials
43
What does the Nervous system do?
Controls and coordinates body activities, senses internal and external changes
44
What doe the Excretory system do?
Regulates blood composition and excretes waste fluids
45
What are the parts of the Digestive system?
esophagus, stomach, intestines
46
What are the parts of the respiratory system?
Trachea (windpipe), lungs, bronchioles, bronchus, alveoli
47
What are the parts of the circulatory system?
Heart, arteries, veins, capillaries
48
How does oxygen and carbon dioxide pass between the respiratory and circulatory system?
Oxygen goes in the nose/mouth, down the trachea, into the lungs, to the bronchus, bronchioles, and alveoli, the alveoli are covered in capillaries; the capillaries absorb the oxygen and take it to the heart.
49
Where does the transfer of food from the digestive system to the circulatory system take place?
In the small intestine. Villi lining the intestine walls are surrounded in capillaries; the capillaries absorb the nutrients.
50
What are the two ways our body tries to cool us down?
-sweating-turning red (blood vessels expand so they are close to the skin to give off heat)
51
Your body's response to certain stimuli are coordinated by what system?
The nervous system
52
What are the major components of blood?
PlasmaRed blood cellsWhite blood cellsPlatelets
53
What is plasma?
carries nutrients, waste, hormones, and blood cells
54
What are red blood cells?
carries oxygen
55
What are white blood cells?
defends body against infection and disease
56
What are platelets?
causes blood to clot
57
What is a manipulated variable?
something that is changing
58
What is a responding variable?
the thing you are observing
59
what is a controlled variable?
what you kept the same

Science 8 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions