Science Respiration Flashcards
Describe diffusion and how it related to osmosis ?
Diffusion is when particles move from a high concentration area to a low concentration area, like sugar dissolving in water.
Osmosis is a type of diffusion where water moves through a semi-permeable membrane from a place with more water to a place with less water, like water entering a plant root.
What solution is used to test for glucose and what is a positive result?
louis’s eggery sells. . .
louis goes ___________ ______ when you make him angry
Benedict’s solution
Brick-red.
What 3 organelles are present in plant cells but not in animal cells?
Chloroplasts, cellulose cell wall and permanent vacuole
Name the 3 types of blood cells found in blood
what do you take out the dishwasher
Red blood cells, White blood cells and platelets
What is the name of the small sacks in lungs and what is its function?
Alveoli
It is where oxygen enters your bloodstream and where carbon dioxide exits your bloodstream
What’s the difference between a Prokaryotic cell and a Eukaryotic cell and give examples
A Prokaryotic cell has DNA strands but no nucleus such as bacteria
Eukaryotic cells have nucleuses like plants and animals
Define Osmosis
The movement of water from high water potential to low water potential through a semi permeable membrane
What are the 7 characteristics of living organisms? (mnemnomic)
Movement,
Reproduction,
Sensitivity,
Growth,
Respiration,
Excretion,
Nutrition
What is the word equation of aerobic respiration
Glucose + Oxygen -> Carbon dioxide + water + energy releases
Define respiration
The process where your body takes in oxygen and uses it to produce energy from food. It also releases carbon dioxide as a waste product when you breathe out.
What is the difference between Isotonic, Hypertonic and Hypotonic?
Isotonic means the solution has the same osmotic strength as the cell, so water moves equally in and out.
Hypertonic means the solution has higher osmotic pressure, so water leaves the cell and it shrinks.
Hypotonic means the solution has lower osmotic pressure, so water enters the cell and it swells.
Hypotonic: Freshwater lakes are hypotonic to saltwater fish, so if saltwater fish are placed in freshwater, their cells can swell with excess
Isotonic means of the same osmotic strength,
Hypertonic means above the osmotic pressure and
Hypotonic means below the osmotic pressure
Which below causes the inhalation of lungs?
- Diaphragm
- Ribs
- Heart
Diaphragm
Which part of the lungs is the vocal cords located in?
- The Throat
- The Oesophagus
- The Larynx
The larynx
What solution tests for the presence of starch?
Iodine Solution
- Which of the following is the correct order in order from least complex part to most complex part?
A) Cells, organs, tissues, organ systems, organism
B) Organs, cells, tissues, organism, organ systems
C) Cells, tissues, organs, organ systems, organism
D) Tissues, cells, organs, organ systems, organism
C) Cells, tissues, organs, organ systems, organism
- Which of the following is the correct definition of the nucleus?
A) The brains of the cell
B) The control centre of the cell
C) The powerhouse of the cell
D) The site of photosynthesis
B) The control centre of the cell
- Which of the following requires energy?
A) Active transport
B) Osmosis
C) Diffusion
D) Gas exchange
A) Active transport
What is missing?
cells—–>tissue—>______—–>organ systems—>organisms
Answer: Organs
What’s the function of mitochondria?
- Where respiration takes place.
- Generate energy - the powerhouse of the cell.
- An organelle
They are essential for keeping cells alive and functioning properly.
What’s the function of cell membrane
The cell membrane controls the movement of substances in and out of the cell
What is the role of the cell wall and where do you find them?
Found in plant cells.
Strengthens the cell and supports the plant as well as keeping its structure.
How many separate chambers does the heart have?
Four
Which 3 parts of the respiratory system are responsible for the transportation of blood?
Arteries
Veins
Capillaries
What do veins do?
Carry DEoxygenated blood from the body to the heart,
The heart pumps to lungs to become REoxygenated
What are the blood vessels that cover the alveoli called?
Capillaries
Which organelle performs aerobic respiration?
Mitochondria
What 2 gases are exchanged in the alveoli?
Carbon Dioxide (CO2) and Oxygen (O2)
What organelle replaces a nucleus in bacteria?
Clue is nucleus
A nucleoid
Which sequence is correct for blood circulation?
A. Heart → Vein → Arteries → Capillary Network Within an Organism → Heart
B.Heart → Vein → Capillary Network Within an Organism → Arteries → Heart
C. Heart → Arteries → Capillary Network Within an Organism → Vein → Heart
D. Heart → Arteries → Vein → Capillary Network Within an Organism → Heart
C. Heart → Arteries → Capillary Network Within an Organism → Vein → Heart
What is the function of the ribosome?
Hint Ribs
Responsible for making protein
5: Which acronym can be used to remember the 7 processes that all living organisms can do?
MR GREEN
MRS GREN
DR GREEN
MS GRENS
MRS GREN:
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
Define active transportation?
The movement of particles from an area of low concentration to an area of high concentration using energy.
What is the difference between veins and arteries?
- Arteries carry oxygenated blood AWAY from the heart
- Veins carry deoxygenated blood TO the heart.
What is the role of the alveoli in the lungs?
Gas exchange in the lungs
Oxygen diffuses/absorbed into the blood.
What is function the chloroplast in plant cells?
- Carry out photosynthesis
- Convert light energy into chemical energy
- Organelles found only in plant cells
Which of the following processes require energy to function?
- Diffusion
- Osmosis
- Active transport
Active transport
How efficient is respiration?
20%
30%
40%
50%
40%
What are the role of veins in the human body?
Take blood from organs TO the heart.
What are capillaries?
- Tiny vessels with thin walls.
- Smallest blood vessels in the vascular system.
- They deliver oxygen and nutrients to cells and removing carbon dioxide
Explain active transportation ?
Active transport moves molecules against the concentration gradient and requires energy
Name the two passive transports.
Osmosis and Diffusion
What is the function of alveoli?
Where the lungs and blood exchange oxygen and carbon dioxide while breathing in and out.
What is the difference between arteries and veins?
- Arteries flow oxygentated blood AWAY from the heart
- Veins bring deoxygenated blood BACK TO the heart
What is the function of the circulatory system?
To move nutrients and oxygen around the body and remove carbon dioxide
In breathing / inhaling what happens to the diaphragm
The diaphragm flattens expanding the volume and sucking air in to the lungs
Name the process that oxygen moves from the lung (aveoli) to red blood cells?
Diffusion
