Bio11- Unit 1

0.0(0)
studied byStudied by 10 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/223

flashcard set

Earn XP

Description and Tags

The Needs & Characteristics of Living Things. WBOT= Will be on test

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

224 Terms

1
New cards
What do all organisms need to survive? (5)
What do all organisms need to survive? (5)
Hint: COWNS

Water, nutrients, space to live, oxygen, and C02
2
New cards
What does water help organisms with?
Do cellular activity (ex. DNA replication, cell division, etc.)
3
New cards
What do can some organisms survive without?
Sunlight
4
New cards
Are plants considered organisms?
Yes!
5
New cards
What is an organism?
An individual animal, plant, or single-celled life form
An individual animal, plant, or single-celled life form
6
New cards
Do plants still need to make nutrients, because they already make their own food through photosynthesis?
Yes.
7
New cards
What purpose do nutrients give the organism?
What they need to grow!!!
What they need to grow!!!
8
New cards
What can organisms be?
Autotrophs (producers), and heterotrophs (consumers)
9
New cards
What are some examples of autotrophs (producers)
Plants, and some bacteria
10
New cards
What are some examples of heterotrophs (consumers)
Carnivores (eats animals)

Herbivores (eats plants)

Omnivores (eats plants and animals)
11
New cards
What is autotrophs?
Producers.

(auto-matically make food for themselves)
Producers. 

(auto-matically make food for themselves)
12
New cards
What is heterotrophs?
Consumers

(I can only do hetero -- ONE THING -- which is eat what autotrophs produce)
Consumers 

(I can only do hetero -- ONE THING -- which is eat what autotrophs produce)
13
New cards
Space to live provides organisms with…?:
A place where they can get food, water, and shelter
14
New cards
Organisms often ____ for space with other organisms?
FIGHT!!! COMPETE!!!
FIGHT!!! COMPETE!!!
15
New cards
What do plants need for photosynthesis?
Carbon dioxide
16
New cards
What do animals AND plants need oxygen for?
Cellular respiration
17
New cards
Do all organisms need air to live in environments, where air is unavailable?
Not all.
18
New cards
TRUE OR FALSE? All organisms are made of cells.
True! :)
19
New cards
TRUE OR FALSE? All organisms do not contain homeostasis
False
20
New cards
TRUE OR FALSE? All organisms obtain and use energy
True!
21
New cards
TRUE OR FALSE? All organisms do not reproduce
False
22
New cards
TRUE OR FALSE? All organisms pass their traits to offspring.
True
23
New cards
TRUE OR FALSE? All organisms don’t grow.
Wth. False!
Wth. False!
24
New cards
TRUE OR FALSE? All organisms respond to changes in their environment.
True!
25
New cards
TRUE OR FALSE? All organisms change over time as a species.
True
True
26
New cards
All organisms have *these* characteristics…(8)

Hint: Birds CHERP and it went GRC. I was surprised.
Change over time as a species

maintain Homeostasis

obtain and use Energy

Reproduce

Pass traits to offspring

Grow

Respond to changes in their environment

are made of Cells
27
New cards
Are all organisms made of cells?
Yeah
28
New cards
Types of cells that organisms are made of
Unicellular and multicellular
29
New cards
What’s unicellular cell?
Simple

Single cell.

Ex. bacteria
30
New cards
What is multicellular?
Complex

Made of many cells

(Ex. animals, plants)
31
New cards
All organisms can maintain homeostasis. Define homeostasis
Ability to maintain ideal internal temperature in response to environmental changes
32
New cards
What are examples of homeostasis in humans?
In hot conditions, we sweat to cool off

In cold conditions, we shiver to stay warm
In hot conditions, we sweat to cool off

In cold conditions, we shiver to stay warm
33
New cards
For our bodies to function properly, we need to be in ________
Homeostasis
34
New cards
TRUE OR FALSE?

All organisms do not use energy.
False bruddah
35
New cards
What’s the cell’s energy currency?
ATP (adenosine triphosphate)
36
New cards
What does ATP do?

Hint: Daily fun and repairs or replaces damaged
Powers daily functions and repair/replaces damaged cells
Powers daily functions and repair/replaces damaged cells
37
New cards
What does ATP stand for? (WILL BE ON TEST!)
Adenosine triphosphate
38
New cards
True or false? Organisms can reproduce
Yes duh
39
New cards
Define sexual reproduction
Two parents produce offspring w/ different genes
40
New cards
Define asexual reproduction
Single parents produces offspring identical to parent (clone)
41
New cards
How do organisms grow?

Hint: isn
Cells increase in size or number
42
New cards
How do organisms pass traits to their offspring?
Traits r passed on thru genes found in the DNA (deoxyribonucleic acid)
43
New cards
When do organisms pass traits to offspring?
Asexual or sexual reproduction
44
New cards
TRUE OR FALSE:

Bacteria are unicellular therefore they cannot grow.
False.

Because bacteria, which is an organism, can grow larger.

(Remember ALL organisms GROW!)
45
New cards
Define stimulus
Any @@**activity**@@ that brings a @@**response**@@
Any @@**activity**@@ that brings a @@**response**@@
46
New cards
What are examples of INTERNAL stimulus
Hunger (stimulus) → tells u to eat (response)

Thirst (stimulus) → tells u to drink wota (response)
47
New cards
Examples of EXTERNAL stimulus (WILL BE ON THE TEST!!)
Light (stimulus) → tells u to stay awake (response)

Sound (stimulus) → tells u to be aware of ur surroundings (response)
48
New cards
How do all organisms, as a species, change over time?
Natural selection
49
New cards
Can individuals evolve?
No, only **populations** can
50
New cards
What is the smallest unit of life?
Cells
51
New cards
What type of cell is fat tissue made of? (This is a check-in question)
Fat cells
52
New cards
What are muscles also known as?
Tissues
53
New cards
Can all tissues be muscles
Not all
54
New cards
TRUE OR FALSE? Specialized cells carry out specific function
True! :D
55
New cards
Can organisms be unicellular, which means that they have no cell specialization?
Ofc.
56
New cards
Define organs
Tissues that are organized into larger structures w/ one main function
57
New cards
What are examples of tissues that are organized into larger structures with one main function?
Organs:

Lungs, heart, brain, liver, kidney
58
New cards
How many kind(s) of tissue are organs made of?
Multiple!
59
New cards
What’s an organ system?
Groups of organs that have related functions
60
New cards
The cardiovascular system is made of _______
organs
61
New cards
Your heart is made of what tissue(s)?

a) epithelial tissue

b) connective tissue

c) nervous tissue

d) muscular tissue

e) all of the above
e. The heart are made of multiple tissues.
62
New cards
What’s an atom?
An atom is the smallest unit of matter
63
New cards
What is considered non-living and living?
What is considered non-living and living?
Anything before the cell is non-living, and whatever is after that (including the cell) is living
64
New cards
What is a cell?
Smallest unit of life, that has all the characteristics of living things
65
New cards
What is a cell? pt.2
Specialized cells to carry out specific functions

Ex. muscle cells, epithelial cells, fat cells
66
New cards
What are tissues?
Groups of cells that are similar in shape and function

Ex. Epithelial tissue: skin that covers the outside surface of your body
67
New cards
What are organs?
Tissues that are organized into larger structures that have one function

Ex. heart pumps blood thru ur body
68
New cards
What are organs systems?
Groups of organs that have related functions

Ex. circulatory system includes the heart, veins, etc
69
New cards
TRUE OR FALSE? (Check-in question)

A cell that lines your small intestine will have a different structure and function from a cell that lines your nostrils
True obv
70
New cards
What are prokaryotes?
Simple, unicellular organisms

Has no membrane-bound organelles (no nucleus.. no ribosome)

All prokaryotes are bacteria (but not all bacteria are unicellular!)
71
New cards
TRUE OR FALSE?

Is all bacteria unicellular organisms?
False. Bacteria is **most commonly** unicellular but not **ALWAYS**. Ex. cyanobacteria 
72
New cards
What are eukaryotes?
Complex organisms (most living things r eukaryotes)

Can be unicellular/ multicellular

Contains organelles surrounding membranes (including nucleus)
73
New cards
Check in question

U find a mystery unicellular organism under your microscope. You notice it’s membrane-bound organelles. What type of organism is it?

A) Eukaryote

B) Prokaryote

C) It’s not an organism
A. “Membrane-bound”
74
New cards
What’s a unicellular organism?
Has only one cell

Can be a prokaryote (bacteria) or a eukaryote

Carries out all functions required to maintain life of organism

NO cell specialization
75
New cards
Check in question

U find a mystery unicellular organism under your microscope. What MUST be true about this organism?

A) It’s a bacteria cell

B) It’s a eukaryote

C) It’s a prokaryote

D) It has no cell specialization
D.
D.
76
New cards
What is a multicellular organism?
Made of more than one cell

Cells develop differently thru cell differentiation so they have dif appearances that suit their functions

They have cell specialization because of cellular differentiation
77
New cards
What’s cell differentiation?
The PROCESS of cells developing differently

Result of gene expression
78
New cards
What is cell specialization?
Cells specialized to perform certain functions
79
New cards
Check in question

A neuron cell and a smooth muscle cell look and function differently from each other, because of what process?

A) Cell differentiation

B) Cell specialization

C) Mutations in the DNA
A. It’s the process
80
New cards
What is a neuron/nerve cell
Sends info from one part of the body to another part

Very long et thin
81
New cards
What is a red blood cell
Shaped like flattened disks so they can easily flow thru blood vessels

Carries oxygen thru the body

Those with sickle cell anemia: sickle shaped red blood cells.

^Because of their change in appearance ability to carry oxygen is now negatively affected
82
New cards
What is a sperm cell
Fertilizes the egg cell

Strong tail for quick swimming, distinct head helps it enter the egg cell
83
New cards
What is gene expression
The process a gene is switched on or off, resulting in dif proteins being made

(ex. melanin switched off, it’s not in the heart)
84
New cards
Check in question

Which of the following cells share the same DNA (assume they all from ur body)

\
A) Connective tissue cell and white blood cell

B) Epithelial cell and intestinal cell

C) Red blood cell and smooth muscle cell

D) All of the above

E) None of the above
D
85
New cards
TRUE OR FALSE:

Most cells in ur body have the same DNA
True!!! :D
86
New cards
TRUE OR FALSE:

Cells use only the DNA they need; the rest is inactive
True.
87
New cards
TRUE OR FALSE:

Skin cells use the DNA that codes for melanin (skin pigment that protects from UV light)
True
88
New cards
TRUE OR FALSE?

Heart cells don’t need melanin, so it is “turned off” in heart cells
Tru . Because it doesn’t need to be protected from the sun because it’s already protected by the rib cage
89
New cards
What are stem cells?
Cells that can become any cell in the body because they haven’t undergone cell differentiation yet
90
New cards
What can stem cells be used for?
Repair damaged organs and cure some diseases
91
New cards
What are current scientists still learning about stem cells?
How to regrow limbs using stem cells
92
New cards
What are the differences between prokaryotes and a eukaryotes (WBOT)
Prokaryote: No membrane-bound organelles

Eukaryote: Membrane-bound organelles

\
Prokaryote: Unicellular

Eukaryote: Multicellular/Unicellular

\
Prokaryote: Simple

Eukaryote: Complex
93
New cards
What are the differences between unicellular and multicellular organisms

(WBOT)
Unicellular organisms: Only 1 cell

Multicellular organisms: 1/+ cell

\
Unicellular organisms: No cell specialization=one cell need to do all the functions needed to maintain life of the organism

Multicellular organisms: Has cell specialization because of cell differentiation, and dif appearances that suit their function
94
New cards
What is the difference between cell differentiation and cell specialization?
Cell differentiation: The process cells develop differently

Cell specialization: Result of cell differentiation that cells r specialized to perform specific functions
95
New cards
Explain the process of cell differentiation in more detail
Stem cell changes into a more specific one (ex. turn into red blood cell)
96
New cards
Is an adaptation positive or negative to the organisms survival and reproductive ability in its environment?
Always positive.
97
New cards
What’s an adaptation of a kangaroo?
Powerful back legs that can jump long distances
Powerful back legs that can jump long distances
98
New cards
What’s an adaptation of a spider?
Can sense vibrations in the ground
Can sense vibrations in the ground
99
New cards
What’s an adaptation of a elephant?
Large tusks for defense
Large tusks for defense
100
New cards
What’s an adaptation of a cheetah?
Teeth designed for eating meat
Teeth designed for eating meat