Cell Structure Flashcards
Name all the structures of an animal cell?
Cytoplasm Cell membrane Ribosomes Mitochondrion Nucleus
Name all the structures of a plant cell
Vacuole Cell wall Mitochondrion Ribosomes Cytoplasm Nucleus Chloroplast Cell membrane
Name all the structures of a fungal cell?
Cell wall Ribosomes Cell membrane Vacuole Bud scar Mitochondrion Nucleus Cytoplasm
Name all the structures of a bacterial cell?
Cytoplasm DNA Ribosomes Cell membrane Cell wall Capsules Plasmids
What does the cell membrane consist of?
Phospholipids
Proteins
Why is the cell membrane described as a mosaic?
The proteins vary in size and shape
What is the layer of double things called in a cell membrane?
A phospholipid bilayer
What is passive transport?
When a substance moves across the cell membrane down a concentration gradient from a high concentration of one substance to a low concentration of another. Passive transport does not require energy
Name two examples of passive transport
Diffusion
Osmosis
Name four things in a cell membrane diagram
Carbohydrate
Membrane pore
Lipid layer
Protein
What does active transport mean?
When a substance moves across the cell membrane against the concentration gradient from a lower concentration to a higher concentration
What is diffusion?
The movement of molecules from a higher concentration to a lower concentration down a concentration gradient
What do animal cells gain through diffusion ?
Oxygen and glucose
What do animal cells release through diffusion?
Carbon dioxide
In photosynthesis what do plant cells take in by diffusion
Carbon dioxide
In photosynthesis what do plant cells release by diffusion
Oxygen
What is osmosis
Osmosis is the movement of water molecules from an area of higher water concentration to an area of lower water concentration through a selectively permeable membrane
What is the function of the nucleus
Contains chromosomes which are made form Dna. These hold genetic information which controls all cell activities
What is the function of a cell membrane
It’s selectively permeable and controls the entry and exit of material in and out of the cell. Made of phospholipids and protein
Cytoplasm
Site of chemical reactions
Mitochondrion
Site of aerobic respiration (more in high energy cell like muscles)
Ribosomes
Site of protein synthesis
Chloroplast
Site of photosynthesis contains chlorophyll
Vacuole
Contains cell sap is important in maintaining shape of the cell
Cell wall
Gives the cell shape and support
Made of cellulose
What happens when you put a red blood cell in distilled water
Gains water and bursts
What happens when you put a red blood cell in salt?
Lose water and shrink
What happens when you put a plant cell in water
Gain water, swell, turgid
What happens when you put a plant cell in salt?
Lose water
Shrink
Plasmolised
