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Anna Mattern 3-4

week 3-4

QuestionAnswer
How do vesicles move from place to place in an organized way within the cell? Molecular motors pull them along the microtubules and microfilaments of the cytoskeleton
Which of the following does not describe a structure or function of the proteasome? Breaking down abnormal and misfolded proteins released from the ER Looks like a hollow cylindrical drum made of protein subunits Requires the small protein called ubiquitin to pull proteins in Correct Answer
The structure in cells that is associated with the enzymatic breakdown (digestion) of foreign material is the: lysosome
Which organelle processes and packages material to be secreted? golgi apperatus
Tiny indentations of the plasma membrane that resemble caves are called: caveolae
The enzyme catalase is an important chemical in the functioning of the: peroxisomes
Lysosomes perform autophagy. This means that they: break down proteins and cytoplasm that are not needed by “self eating.”
A specialized cell structure that propels the sperm is the: flagellum.
The identification function of the cell membrane is carried out by the: glycoprotein molecules.
The inner membrane of what double-membrane structure is contorted into folds called cristae? Mitochondrion
Which organelles consist of vesicles that have pinched off from the Golgi apparatus? Lysosomes
In the cell membrane, the hydrophilic part of the phospholipid molecule: faces the exterior of the cell. faces the interior of the cell.
Which of the following is not true of the rough endoplasmic reticulum? It makes lipids and carbohydrates. It is made of broad, flattened sacs. It has many ribosomes attached to it.
The cell extension that contains microfilaments is called: microvilli
DNA is a major constituent of which cell organelle? nucleus
A list of the cell fibers from largest to smallest would read: microtubules, intermediate filaments, microfilaments.
Granules or threads within the nucleus are called: chromatin.
ATP production occurs within which organelle? Mitochondrion
Which of the following is not a function of the smooth endoplasmic reticulum? Provides a site for ribosome attachment
The fundamental organizational unit of life is the: cell
The barrier function of the plasma membrane is accomplished by the: phospholipid bilayer.
The structure that separates the contents of a cell from the surrounding tissue is known as: plasma membrane.
The nucleolus is composed chiefly of: rRNA
Which of the following is not a function of the integral membrane proteins? Acting as receptors Signal transduction Identification of “self”
The nucleus is the only structure in the cell that contains DNA. T OR F FALSE
The largest human cell, measuring about 150 μm, is a: female sex cell or ovum.
The cell extension that assists epithelial cells in absorption is called: microvilli.
The ____ is often called the microtubule organizing center. centrosome
Which cell fiber serves as part of our “cellular muscles?” Microfilament
Which of the following is not true about ribosomes? Surrounded by a membrane structure
The union of basal and fibroreticular laminae forms the basement membrane.
The two main layers that compose the skin are the dermis and epidermis.
The strongest and most durable type of cartilage is fibrocartilage
Of the many different kinds of protein compounds in the body, which is the most abundant? collagen
A lubricating substance produced by goblet cells is called mucas
The structure that lies deep to the dermis and forms a connection between the skin and the underlying structures of the body is the hypodermis.
Which of the following is not a type of connective tissue? cardiac
Which of the following is not a principal type of tissue? cardiac
The mixed secretions of sebaceous and ceruminous glands form a brown waxy substance called the cerumen.
The most abundant and widespread tissue in the body is connective.
Which of the following is not a primary germ layer? epiderm
The External Ear is composed of elastic cartilage
Around the sixth month of pregnancy, the developing fetus is almost entirely covered by a fine soft hair coat called the lanugo.
Stratified squamous (keratinized) epithelial cells are found in the epidermis.
The basic determinant of skin color is melanin
Cells in a tissue are surrounded by or embedded in a complex extracellular material called a matrix
The connective tissue membranes that line the spaces between bones and joints are called _____ membranes. synovial
Which of the following tissues lack a direct blood supply and consequently heals very slowly? cartilage
Which of the following is the most superficial layer of the epidermis? stratum corneum
Which of the following is an example of a serous membrane? pleura peritoneum pericardium
The dermis is composed of two layers, a thin papillary layer and a thick _____ layer. reticular
Which type of tissue has cube-shaped cells and can be found lining the kidney tubules? simple cuboidal epithelium
Which principal type of tissue covers and protects body surfaces and lines body cavities? epithelial
The fluid environment that fills the spaces between the cells of the body is called extracellular matrix.
Adipose tissue is a storage tissue.
Besides water, extracellular matrix contains proteins and proteoglycans.
Which of the following contains osteocytes? bone
Which of the following contains intercalated disks? cardiac muscle
The skin glands include three kinds of microscopic glands. They are the __________ glands. sweat, sebaceous, and ceruminous
Each hair follicle has a small bundle of involuntary muscles attached to it called the arrector pili muscle
Created by: Annam7160
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