1870964
Descrição
FlashCards por joshbrown3397, atualizado more than 1 year ago
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Criado por joshbrown3397
quase 10 anos atrás
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| Questão | Responda |
| This organelle functions in cellular respiration | mitochondrion |
| The organelle functions to package and deliver protiens | Golgi Apperatus |
| Cell organelles are located within the (__________) of the cell | Cytoplasm |
| The Endoplasmic reticulum functions to | Transport materials |
| Genetic material is contained within the (___________) of the cell | Nucleus |
| This organelle is responsible for destroying worn-out cell parts | Lysosomes |
| The (__________) controls what enters and leaves the cell | Cell Membrane |
| The rough endoplasmic reticulum has (__________) located on it | Ribosomes |
| Located within the nucleus, it is responsible for producing ribosomes | Nucleolus |
| Which structure is directly responsible for the formation of proteins within a cell? | Ribosomes |
| What part of the cell is responsible for the breaking down and digesting of things | Lysosomes |
| Identify the organelle pictured | Mitochondria |
| What part of the cell serves as an intracellular highway? | Endoplasmic reticulum |
| Which of the following would you NOT find in a bacterial cell? A)DNA B)Cell Membrane C)Golgi apperatus D)Ribosomes | C)Golgi apperatus |
| Which of the following is found in plant cells but not animal cells? A)Cell wall B)Vacuole C)Mitochondria D)Endoplasmic reticulum | A)Cell Wall |
| The jellylike interior of the cell is called the | Cytoplasm |
| Identify the organelle | Endoplasmic reticulum |
| What part of the cell makes protiens | Ribosomes |
| Where are the ribosomes usually located in animal or plant cells? | On the Endoplasmic reticulum |
| What part of the cell serves to process, package and export protiens? | Golgi apperatus |
| What is cell signalling? | A method of communication between cells |
| The function of a glycolipid is | to act as a binding site |
| What do channel proteins allow? | the movement of charged substances |
| What do phospholipids do? | form a barrier to the movement of polar molecules |
| What does cholesterol do in the membrane? | Stabilises the membrane structure |
| Glycoproteins are... | a membrane bound receptor |
| How does a protein enter the cell | Endocytosis |
| How does a sodium ion enter the cell? | facilitated diffusion |
| How does water enter a cell? | Osmosis |
| How does oxygen enter the cell? | Diffusion |
| How does alcohol enter the cell? | Diffusion |
| The molecule that a signal molecule binds to is _________ | A receoptor |
| The membrane contains binding sites which are | Glycoproteins |
| The signal molecule has a shape that is | Specific |
| The shape of the binding site and the shape of the signal molecule are | Complementary |
| Cell signalling occurs when signal molecules bind to molecules on the | Cell Surface Membrane |
| An example of a cell signalling molecule is | a hormone |
| Modern drugs often act by mimicking the action of | Hormones |
| How does heating affect cell membranes? | Increased diffusion due to more kinetic energy Membrane becomes more fluid Membrane begins to melt Proteins denature |
| What happens in anaphase? | Sister chromotids move to opposite ends of the cell |
| What happens is metaphase? | Chromosomes move to the equator of the cell |
| Prophase | Chromosomes coil to become shorter and thicker |
| What happens in Telophase? | Nuclear envelope reforms around chromatids (now called chromosomes) |
| The elastic fibres function is to | Recoil and return the alveolus to its original shape |
| The function of blood is to | Transport gasses |
| The function of cartilage during inhilation is to | Hold the airways open |
| The function of a goblet cell is | to secrete and release mucus |
| The function of smooth muscle is to | constrict or narrow the airway |
| The function of squamous epithelium is to | To provide a short diffusion pathway |
| The function of ciliated epithelium is to | move the mucus up the throat |
| Single-celled organisms have a _______ surface area to volume ratio | Large |
| In large animals the surface area to volume ratio is | Small |
| Active organisms need a lot of | oxygen |
| Do single-celled organisms need a 'pump'? | No |
| Large organisms have a large surface area but a very large... | volume |
| True or false: Ventilation helps to increase the concentration of oxygen in the aveoli | True |
| True or false: A low concentration of oxygen in the blood facilitates diffusion | True |
| True or false: Carbon dioxide leaves the blood by osmosis | False |
| True or false: The alveoli have ciliated epithelium | False |
| True or false: Elastic fibres contract to reduce the size of the alveoli | False |
| True or false: Elastic fibres help to expel air from the alveoli | True |
| True or false: During inhilation, the intercostal muscles contract | True |
| True or false: The alveoli contain smooth muscle fibres | False |
| True or false: The alveoli are stretched as more air enters the lungs | True |
| True or false: A short diffusion pathway helps to create a steep concentration gradient | True |
| True or false: A short diffusion pathway helps to maintain a steep concentration gradient | False |
| True or false: Cartilage keeps the airways rigid | False |
| True or false: Tidal volume must be measured at rest | False |
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