COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉The shape of the nucleus is maintained by the ___, which is
composed of ___. Answer: nuclear lamina, protein filaments
◉In the nucleus, DNA and proteins form genetic material called ____.
Answer: Chromatin
◉____ condenses to form discrete chromosomes. Answer: Chromatin
◉The nucleolus is located within the nucleus and is the site of ____.
Answer: RNA synthesis
◉______ are responsible for the conversion of genetic material to
protein. Answer: Ribosomes
◉Ribosomes are particles made of ______. Answer: Ribosomal RNA
and protein
,◉The _____ accounts for more than half of the total membrane in
many eukaryotic cells. Answer: Endoplasmic reticulum
◉The ER membrane is continuous with the ____. Answer: nuclear
envelope
◉Two distinct regions of ER:. Answer: Rough ER and smooth ER
◉-Lacks ribosomes
1. synthesizes lipids
2.metabolizes carbohydrates
3. detoxifies poison
4. stores calcium. Answer: Smooth ER
◉- has ribosomes studding its surface
1. Has bound ribosomes, which secrete glycoproteins
2. Distributes transport vesicles
3. is a membrane factory for the cell. Answer: Rough ER
◉The golgi apparatus consists of flattened membranous sacs called
___. Answer: Cisternae
, ◉1. Modifies products of the ER
2. Manufactures certain macromolecules
3. Sorts and packages materials into transport vesicles. Answer:
Golgi Apperatus
◉A ____ is a membranous sac of hydrolytic enzymes that can digest
____. Answer: lysosome, macromolecules
◉can hydrolyze proteins, Fats, Polysaccharides and Nucleic acids.
Answer: Lysosomal enzymes
◉Some types of cells can engulf another cell by _____. Answer:
phagocytosis
◉A lysosome fuses with the ____ and digests the molecules. Answer:
food vacuole
◉lysosomes also use enzymes to recycle the cells own organelles
and macromolecules, a process called ___. Answer: autophagy
◉A plant cell or fungal cell may have one or several_____. Answer:
vacuoles
◉Food vacuoles are formed by ____. Answer: Phagocytosis