Cell Structure and Function Flashcards
What is the basic structural and functional unit of all living things?
Cell
What are the two types of cells?
Prokaryotic and eukaryotic
Which cell type lacks a nucleus and no membranes around internal parts?
Prokaryotic
Which cell type has a nucleus and membranes around internal parts?
Eukaryotic
What is the smallest human cell overall and which one for females?
Sperm and red blood cells
What is the largest human cell overall and for males?
Eggs and fat cells
Are some cells visible? What are two examples?
Yes, egg yolks and frog eggs
Humans have approximately 60 trillion cells. True or false?
True
Inclusions, cytosol, membranes, and organelles are the four major parts of what?
Cells
The cytosol and organelles outside the nucleus are held in what?
Cytoplasm
Germs, glycogen, mucus, and pigments such as melanin are what major part of the cells?
Inclusions
The water-based “juice” in the cell composed of waters, carbs, lipids, pieces of DNA, pieces of proteins, vitamins, minerals, and wastes is what major part of the cell?
Cytosol
The cell membrane is made out of what two things?
Protein and phospholipids
Which type of cells have membranes around organelles?
Eukaryotic cells
Is the tail or head of the phospholipid hydrophilic?
Heads
What major part of the cell is tiny components that allow the cell to work?
Organelles
What is the largest organelle that also contains most of the cell’s DNA?
Nucleus
Housing the nucleolus and protecting genetic material is the job of what organelle?
Nucleus
What organelle is located inside the nucleus and is made of DNA, RNA, and proteins?
Nucleolus
Making ribosomes is the job of what organelle?
Nucleolus
What organelle is made of DNA, RNA, and protein and has no membrane?
Ribosome
The place where proteins are made is the job of what organelle?
Ribosome
The transport and storage of materials that are interconnected tubes continuous with the nuclear membrane are what two structures?
The endoplasmic reticulum
Part of protein making is the job of what organelle?
Rough ER
Manufacturing lipids and detoxifying is the job of what organelle?
Smooth ER
Stacks of flattened sacs that also make secretory vesicles and lysosomes is what organelle?
Golgi
Storage and packaging center is the job of what organelle?
Golgi
What is the small fluid-filled body produced by the golgi?
Secretory vesicles
The organelle that transports proteins is what?
Secretory vesicles
What organelle digests all sorts of molecules/structures using enzymes such as foreign bodies, other parts of the cell, or the entire cell?
Lysosomes
What organelle has a simple spherical membrane where digestive enzymes are found inside?
Lysosome
Lysosome enzymes are made by the proteins from what organelle?
Endoplasmic reticulum
What part of the lysosomes are enclosed within vesicles by the Golgi apparatus?
Enzymes
What organelle has its own DNA?
Ribosome
Releasing energy from food, or cellular respiration, is the job of what organelle?
Mitochondrion
100s of little hair-like “fingers” that move in an undulating fashion are what organelle?
Cilia
Moving things around, such as eggs, clearing junk from lungs, and some microorganisms, is the job of what organelle?
Cilia
What organelle has longer but fewer than cilia that moves in a cork-screw fashion?
Flagella
Locomotion for some cells such as bacteria or sperm is the job of what organelle?
Flagella
What organelle produces structures made of tubes like cilia, flagella, more of itself, and tubes needed in cell division?
Centrioles
What organelle is typically in pairs near the nucleus but has no membrane?
Centrioles
What organelle is only found in photosynthetic eukaryotic cells that has its own DNA?
Chloroplasts
Capturing and converting energy to be released by mitochondria is the job of what organelle?
Chloroplasts
The chloroplast has how many membranes?
Two: Inner and outer
The aqueous place inside the chloroplasts is called what?
Stroma
What are internal folds found within the stroma?
Thylakoids
Stacks of thylakoids are called what?
Granum (Grana)
Chlorophyll is found in the membrane of the what?
Thylakoid
The vacuole is had by what and some what?
Plants and some protists
What organelle is bound by a single membrane and keeps the cell from collapsing on itself?
Vacuole
A cell wall is had by some what and what?
Plants and some algae
Controlling the amount of water in the cell is the job of what organelle?
Vacuole
The cell wall is made by what?
Carbohydrates (cellulose)
Supporting and protecting the cell and giving stiffness to the plant cell is the job of what organelle?
Cell wall