Everything Flashcards

(206 cards)

1
Q

What is the basic unit of life?

A

The cell.

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2
Q

What is the process by which plants make their own food?

A

Photosynthesis.

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3
Q

True or False: DNA stands for Deoxyribonucleic Acid.

A

True.

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4
Q

Fill in the blank: The _____ is the control center of the cell.

A

nucleus.

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5
Q

What are the two main types of cells?

A

Prokaryotic and Eukaryotic.

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6
Q

What is the function of the mitochondria?

A

To produce energy through respiration.

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7
Q

Which organelle is responsible for protein synthesis?

A

Ribosome.

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8
Q

What is the role of the cell membrane?

A

To control the movement of substances in and out of the cell.

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9
Q

Multiple choice: Which of the following is NOT a part of the cell theory? A) All living things are made of cells. B) Cells are the basic unit of life. C) All cells have a nucleus. D) All cells come from pre-existing cells.

A

C) All cells have a nucleus.

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10
Q

What are enzymes?

A

Biological catalysts that speed up chemical reactions.

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11
Q

True or False: Enzymes can be reused after a chemical reaction.

A

True.

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12
Q

Fill in the blank: The _____ is the site of photosynthesis in plant cells.

A

chloroplast.

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13
Q

What is the function of the ribosome?

A

To synthesize proteins.

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14
Q

What is osmosis?

A

The diffusion of water across a selectively permeable membrane.

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15
Q

Multiple choice: Which of the following is a product of photosynthesis? A) Oxygen B) Carbon Dioxide C) Glucose D) Both A and C

A

D) Both A and C.

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16
Q

What is the role of chlorophyll in plants?

A

To absorb light energy for photosynthesis.

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17
Q

What are the stages of the cell cycle?

A

Interphase, mitosis, and cytokinesis.

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18
Q

True or False: Mitosis results in two identical daughter cells.

A

True.

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19
Q

Fill in the blank: The _____ is the powerhouse of the cell.

A

mitochondria.

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20
Q

What is genetic variation?

A

Differences in DNA among individuals in a population.

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21
Q

Multiple choice: Which of the following processes increases genetic variation? A) Asexual reproduction B) Sexual reproduction C) Cloning D) Budding

A

B) Sexual reproduction.

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22
Q

What is the role of the Golgi apparatus?

A

To modify, sort, and package proteins and lipids.

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23
Q

What is the function of the lysosome?

A

To digest waste materials and cellular debris.

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24
Q

True or False: All cells have a cell wall.

A

False.

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25
Fill in the blank: The _____ is a semi-permeable barrier surrounding the cell.
cell membrane.
26
What is the primary function of the nervous system?
To coordinate and control body activities.
27
What are the two main types of nervous systems?
Central nervous system and peripheral nervous system.
28
Multiple choice: Which part of the brain controls balance? A) Cerebrum B) Cerebellum C) Brainstem D) Limbic system
B) Cerebellum.
29
What is homeostasis?
The maintenance of a stable internal environment in an organism.
30
True or False: Hormones are produced by glands in the endocrine system.
True.
31
Fill in the blank: The _____ is responsible for the immune response.
immune system.
32
What are pathogens?
Microorganisms that cause disease.
33
Multiple choice: Which of the following is NOT a type of pathogen? A) Bacteria B) Virus C) Fungus D) Antibody
D) Antibody.
34
What is the function of antibodies?
To neutralize pathogens and mark them for destruction.
35
True or False: Vaccines help to stimulate the immune response.
True.
36
Fill in the blank: The _____ system is responsible for transporting nutrients and oxygen throughout the body.
circulatory.
37
What are the components of blood?
Red blood cells, white blood cells, platelets, and plasma.
38
Multiple choice: What is the primary function of red blood cells? A) To fight infection B) To transport oxygen C) To clot blood D) To provide immunity
B) To transport oxygen.
39
What is the role of the heart?
To pump blood throughout the body.
40
True or False: The left side of the heart pumps oxygenated blood to the lungs.
False.
41
Fill in the blank: The _____ is the largest organ in the human body.
skin.
42
What are the three main types of muscle tissue?
Skeletal, cardiac, and smooth muscle.
43
Multiple choice: Which type of muscle is involuntary? A) Skeletal B) Cardiac C) Smooth D) Both B and C
D) Both B and C.
44
What is the function of the skeletal system?
To provide structure, support, and protection to the body.
45
True or False: Bones are living tissues.
True.
46
Fill in the blank: The _____ is the basic structural and functional unit of an organism.
cell.
47
What is the purpose of the digestive system?
To break down food and absorb nutrients.
48
Multiple choice: Which organ is primarily responsible for nutrient absorption? A) Stomach B) Small intestine C) Large intestine D) Esophagus
B) Small intestine.
49
What is the role of enzymes in digestion?
To break down food into smaller molecules.
50
True or False: The liver produces bile.
True.
51
Fill in the blank: The _____ is the tube that connects the throat to the stomach.
esophagus.
52
What is the function of the respiratory system?
To facilitate gas exchange, primarily oxygen and carbon dioxide.
53
Multiple choice: Which structure is responsible for gas exchange in the lungs? A) Trachea B) Bronchi C) Alveoli D) Diaphragm
C) Alveoli.
54
What is the role of the diaphragm?
To assist in breathing by changing the volume of the thoracic cavity.
55
True or False: The primary gas exchanged during respiration is nitrogen.
False.
56
Fill in the blank: The _____ is the process of breathing in and out.
ventilation.
57
What is the role of the kidneys?
To filter waste products from the blood and regulate water balance.
58
Multiple choice: Which part of the kidney is responsible for filtering blood? A) Renal pelvis B) Nephrons C) Ureter D) Urethra
B) Nephrons.
59
What is the function of urine?
To excrete waste products from the body.
60
True or False: The human body has two kidneys.
True.
61
Fill in the blank: The _____ system is responsible for producing hormones.
endocrine.
62
What is the primary function of the reproductive system?
To produce offspring.
63
Multiple choice: Which hormone is responsible for ovulation? A) Estrogen B) Progesterone C) Luteinizing hormone D) Testosterone
C) Luteinizing hormone.
64
What is the role of the testes?
To produce sperm and testosterone.
65
True or False: The ovaries produce eggs and hormones.
True.
66
Fill in the blank: The _____ is the female reproductive organ where a fertilized egg develops.
uterus.
67
What is the purpose of mitosis?
To create two identical daughter cells for growth and repair.
68
Multiple choice: What type of reproduction involves two parents? A) Asexual B) Sexual C) Budding D) Fragmentation
B) Sexual.
69
What is the significance of meiosis?
To produce gametes with half the number of chromosomes for sexual reproduction.
70
True or False: Mutations can lead to genetic variation.
True.
71
Fill in the blank: The _____ is a segment of DNA that codes for a protein.
gene.
72
What is natural selection?
The process where organisms better adapted to their environment tend to survive and reproduce.
73
Multiple choice: Which scientist is known for the theory of evolution by natural selection? A) Gregor Mendel B) Charles Darwin C) Louis Pasteur D) Albert Einstein
B) Charles Darwin.
74
What is the difference between a dominant and a recessive allele?
A dominant allele expresses its trait even with one copy, while a recessive allele only expresses its trait with two copies.
75
True or False: Phenotype refers to the genetic makeup of an organism.
False.
76
Fill in the blank: The _____ is the observable characteristics of an organism.
phenotype.
77
What is a genotype?
The genetic makeup of an organism.
78
Multiple choice: Which of the following is an example of a phenotype? A) Bb B) Brown eyes C) bb D) Gene
B) Brown eyes.
79
What is selective breeding?
The process of breeding plants or animals for specific traits.
80
True or False: Cloning produces genetically identical organisms.
True.
81
Fill in the blank: The _____ is the study of heredity and the variation of inherited characteristics.
genetics.
82
What is biotechnology?
The use of living systems and organisms to develop or create products.
83
Multiple choice: Which of the following is a common application of biotechnology? A) Gene therapy B) Fossil fuel production C) Nuclear energy D) Water purification
A) Gene therapy.
84
What is the role of stem cells?
To differentiate into various cell types for growth and repair.
85
True or False: Stem cells can only become one type of cell.
False.
86
Fill in the blank: The _____ is the process of using organisms to clean up environmental contaminants.
bioremediation.
87
What is the primary focus of ecology?
The study of interactions between organisms and their environment.
88
Multiple choice: Which of the following is a biotic factor in an ecosystem? A) Soil B) Water C) Plants D) Temperature
C) Plants.
89
What is a food chain?
A linear sequence of organisms through which nutrients and energy pass.
90
True or False: Decomposers break down dead organisms and recycle nutrients.
True.
91
Fill in the blank: The _____ is the role an organism plays in its ecosystem.
niche.
92
What is biodiversity?
The variety of life in a particular habitat or ecosystem.
93
Multiple choice: Which of the following is a threat to biodiversity? A) Habitat destruction B) Conservation C) Pollution D) Both A and C
D) Both A and C.
94
What is conservation?
The protection and management of biodiversity.
95
True or False: Invasive species can disrupt local ecosystems.
True.
96
Fill in the blank: The _____ is the maximum population size that an environment can sustain.
carrying capacity.
97
What is an ecosystem?
A community of living organisms interacting with their physical environment.
98
Multiple choice: Which of the following is an abiotic factor? A) Animals B) Plants C) Water D) Bacteria
C) Water.
99
What is the greenhouse effect?
The warming of the Earth's surface due to trapped heat by greenhouse gases.
100
True or False: Climate change is caused solely by natural factors.
False.
101
Fill in the blank: The _____ is the layer of gases surrounding the Earth.
atmosphere.
102
What is the role of decomposers in an ecosystem?
To break down dead organic matter and recycle nutrients.
103
Multiple choice: Which of the following is a primary producer? A) Herbivore B) Carnivore C) Plant D) Decomposer
C) Plant.
104
What is the basic unit of life?
The cell.
105
What is the process by which plants make their own food?
Photosynthesis.
106
True or False: DNA stands for Deoxyribonucleic Acid.
True.
107
Fill in the blank: The _____ is the control center of the cell.
nucleus.
108
What are the two main types of cells?
Prokaryotic and Eukaryotic.
109
What is the function of the mitochondria?
To produce energy through respiration.
110
Which organelle is responsible for protein synthesis?
Ribosome.
111
What is the role of the cell membrane?
To control the movement of substances in and out of the cell.
112
Multiple choice: Which of the following is NOT a part of the cell theory? A) All living things are made of cells. B) Cells are the basic unit of life. C) All cells have a nucleus. D) All cells come from pre-existing cells.
C) All cells have a nucleus.
113
What are enzymes?
Biological catalysts that speed up chemical reactions.
114
True or False: Enzymes can be reused after a chemical reaction.
True.
115
Fill in the blank: The _____ is the site of photosynthesis in plant cells.
chloroplast.
116
What is the function of the ribosome?
To synthesize proteins.
117
What is osmosis?
The diffusion of water across a selectively permeable membrane.
118
Multiple choice: Which of the following is a product of photosynthesis? A) Oxygen B) Carbon Dioxide C) Glucose D) Both A and C
D) Both A and C.
119
What is the role of chlorophyll in plants?
To absorb light energy for photosynthesis.
120
What are the stages of the cell cycle?
Interphase, mitosis, and cytokinesis.
121
True or False: Mitosis results in two identical daughter cells.
True.
122
Fill in the blank: The _____ is the powerhouse of the cell.
mitochondria.
123
What is genetic variation?
Differences in DNA among individuals in a population.
124
Multiple choice: Which of the following processes increases genetic variation? A) Asexual reproduction B) Sexual reproduction C) Cloning D) Budding
B) Sexual reproduction.
125
What is the role of the Golgi apparatus?
To modify, sort, and package proteins and lipids.
126
What is the function of the lysosome?
To digest waste materials and cellular debris.
127
True or False: All cells have a cell wall.
False.
128
Fill in the blank: The _____ is a semi-permeable barrier surrounding the cell.
cell membrane.
129
What is the primary function of the nervous system?
To coordinate and control body activities.
130
What are the two main types of nervous systems?
Central nervous system and peripheral nervous system.
131
Multiple choice: Which part of the brain controls balance? A) Cerebrum B) Cerebellum C) Brainstem D) Limbic system
B) Cerebellum.
132
What is homeostasis?
The maintenance of a stable internal environment in an organism.
133
True or False: Hormones are produced by glands in the endocrine system.
True.
134
Fill in the blank: The _____ is responsible for the immune response.
immune system.
135
What are pathogens?
Microorganisms that cause disease.
136
Multiple choice: Which of the following is NOT a type of pathogen? A) Bacteria B) Virus C) Fungus D) Antibody
D) Antibody.
137
What is the function of antibodies?
To neutralize pathogens and mark them for destruction.
138
True or False: Vaccines help to stimulate the immune response.
True.
139
Fill in the blank: The _____ system is responsible for transporting nutrients and oxygen throughout the body.
circulatory.
140
What are the components of blood?
Red blood cells, white blood cells, platelets, and plasma.
141
Multiple choice: What is the primary function of red blood cells? A) To fight infection B) To transport oxygen C) To clot blood D) To provide immunity
B) To transport oxygen.
142
What is the role of the heart?
To pump blood throughout the body.
143
True or False: The left side of the heart pumps oxygenated blood to the lungs.
False.
144
Fill in the blank: The _____ is the largest organ in the human body.
skin.
145
What are the three main types of muscle tissue?
Skeletal, cardiac, and smooth muscle.
146
Multiple choice: Which type of muscle is involuntary? A) Skeletal B) Cardiac C) Smooth D) Both B and C
D) Both B and C.
147
What is the function of the skeletal system?
To provide structure, support, and protection to the body.
148
True or False: Bones are living tissues.
True.
149
Fill in the blank: The _____ is the basic structural and functional unit of an organism.
cell.
150
What is the purpose of the digestive system?
To break down food and absorb nutrients.
151
Multiple choice: Which organ is primarily responsible for nutrient absorption? A) Stomach B) Small intestine C) Large intestine D) Esophagus
B) Small intestine.
152
What is the role of enzymes in digestion?
To break down food into smaller molecules.
153
True or False: The liver produces bile.
True.
154
Fill in the blank: The _____ is the tube that connects the throat to the stomach.
esophagus.
155
What is the function of the respiratory system?
To facilitate gas exchange, primarily oxygen and carbon dioxide.
156
Multiple choice: Which structure is responsible for gas exchange in the lungs? A) Trachea B) Bronchi C) Alveoli D) Diaphragm
C) Alveoli.
157
What is the role of the diaphragm?
To assist in breathing by changing the volume of the thoracic cavity.
158
True or False: The primary gas exchanged during respiration is nitrogen.
False.
159
Fill in the blank: The _____ is the process of breathing in and out.
ventilation.
160
What is the role of the kidneys?
To filter waste products from the blood and regulate water balance.
161
Multiple choice: Which part of the kidney is responsible for filtering blood? A) Renal pelvis B) Nephrons C) Ureter D) Urethra
B) Nephrons.
162
What is the function of urine?
To excrete waste products from the body.
163
True or False: The human body has two kidneys.
True.
164
Fill in the blank: The _____ system is responsible for producing hormones.
endocrine.
165
What is the primary function of the reproductive system?
To produce offspring.
166
Multiple choice: Which hormone is responsible for ovulation? A) Estrogen B) Progesterone C) Luteinizing hormone D) Testosterone
C) Luteinizing hormone.
167
What is the role of the testes?
To produce sperm and testosterone.
168
True or False: The ovaries produce eggs and hormones.
True.
169
Fill in the blank: The _____ is the female reproductive organ where a fertilized egg develops.
uterus.
170
What is the purpose of mitosis?
To create two identical daughter cells for growth and repair.
171
Multiple choice: What type of reproduction involves two parents? A) Asexual B) Sexual C) Budding D) Fragmentation
B) Sexual.
172
What is the significance of meiosis?
To produce gametes with half the number of chromosomes for sexual reproduction.
173
True or False: Mutations can lead to genetic variation.
True.
174
Fill in the blank: The _____ is a segment of DNA that codes for a protein.
gene.
175
What is natural selection?
The process where organisms better adapted to their environment tend to survive and reproduce.
176
Multiple choice: Which scientist is known for the theory of evolution by natural selection? A) Gregor Mendel B) Charles Darwin C) Louis Pasteur D) Albert Einstein
B) Charles Darwin.
177
What is the difference between a dominant and a recessive allele?
A dominant allele expresses its trait even with one copy, while a recessive allele only expresses its trait with two copies.
178
True or False: Phenotype refers to the genetic makeup of an organism.
False.
179
Fill in the blank: The _____ is the observable characteristics of an organism.
phenotype.
180
What is a genotype?
The genetic makeup of an organism.
181
Multiple choice: Which of the following is an example of a phenotype? A) Bb B) Brown eyes C) bb D) Gene
B) Brown eyes.
182
What is selective breeding?
The process of breeding plants or animals for specific traits.
183
True or False: Cloning produces genetically identical organisms.
True.
184
Fill in the blank: The _____ is the study of heredity and the variation of inherited characteristics.
genetics.
185
What is biotechnology?
The use of living systems and organisms to develop or create products.
186
Multiple choice: Which of the following is a common application of biotechnology? A) Gene therapy B) Fossil fuel production C) Nuclear energy D) Water purification
A) Gene therapy.
187
What is the role of stem cells?
To differentiate into various cell types for growth and repair.
188
True or False: Stem cells can only become one type of cell.
False.
189
Fill in the blank: The _____ is the process of using organisms to clean up environmental contaminants.
bioremediation.
190
What is the primary focus of ecology?
The study of interactions between organisms and their environment.
191
Multiple choice: Which of the following is a biotic factor in an ecosystem? A) Soil B) Water C) Plants D) Temperature
C) Plants.
192
What is a food chain?
A linear sequence of organisms through which nutrients and energy pass.
193
True or False: Decomposers break down dead organisms and recycle nutrients.
True.
194
Fill in the blank: The _____ is the role an organism plays in its ecosystem.
niche.
195
What is biodiversity?
The variety of life in a particular habitat or ecosystem.
196
Multiple choice: Which of the following is a threat to biodiversity? A) Habitat destruction B) Conservation C) Pollution D) Both A and C
D) Both A and C.
197
What is conservation?
The protection and management of biodiversity.
198
True or False: Invasive species can disrupt local ecosystems.
True.
199
Fill in the blank: The _____ is the maximum population size that an environment can sustain.
carrying capacity.
200
What is an ecosystem?
A community of living organisms interacting with their physical environment.
201
Multiple choice: Which of the following is an abiotic factor? A) Animals B) Plants C) Water D) Bacteria
C) Water.
202
What is the greenhouse effect?
The warming of the Earth's surface due to trapped heat by greenhouse gases.
203
True or False: Climate change is caused solely by natural factors.
False.
204
Fill in the blank: The _____ is the layer of gases surrounding the Earth.
atmosphere.
205
What is the role of decomposers in an ecosystem?
To break down dead organic matter and recycle nutrients.
206
Multiple choice: Which of the following is a primary producer? A) Herbivore B) Carnivore C) Plant D) Decomposer
C) Plant.