Week 1 Flashcards
The mechanism by which a bacterium is brought into a cell is called
Phagocytosis
Which of the following organelles of the cell likely originated from a symbiotic event between an aerobic bacterium and a cell?
Mitochondria
Which of the following organelles of the cell initiates packing, concentration and storage of secretory products by secretory vesicles?
Golgi apparatus
All the following structures are located within the plasmalemma (cell membrane) except for which one of these?
Cytosol
Transport vesicles carry proteins to which organelle to complete modifications to the proteins, following translation?
Golgi apparatus
A cell that is actively synthesizing proteins or is located with a rapidly growing tumor is characterized by a large
Nucleolus
The process of meiosis is involved in the formation of
Spermatozoa
List of lipids
Waxes
Fat-soluble vitamins
Sterols
Triglycerides
Which of these organelles synthesizes phospholipids?
smooth endoplasmic reticulum
Which organelle of the cell would be present in large numbers in cells requiring large amounts of energy?
Mitochondria
Which of the following is a characteristic of most organelles?
Most organelles are metabolically active.
Tay-Sachs disease is due to
The absence of a lysosomal enzyme (because of a defective protein) that breaks down fatty substances in the nervous system, leading to toxicity.
Aerobic respiration of a cell occurs in which one of these organelles?
Mitochondria
Pseudohypoparathyroidism is caused by a
Defective receptor for parathyroid hormone
The cytoskeletal component that enables endocytosis by shaping the cell membrane is
Actin microfilaments
