Unit Test Flashcards
Total magnification is the product of two values: power of eyepiece and power of?
objective lens
What part of the microscope contains the ocular lens?
Eyepiece
What part of the microscope supports the slide being viewed?
Stage
What type of microscope is use to visualize viruses?
electron microscope
On the microscope stage, what is used to hold the glass slide in place and prevent it from moving?
stage clips
Which organelle has the capacity to perform o-type glycosylation when modifying vesicle?
golgi body
This area of the cell surrounds the nucleus and regulates passage of substances to and from the nucleus?
nuclear envelope
What cell feature is responsible for powering the cell
mitochondria
What is one major feature that plant cells have that animal cells do not?
cell wall
The plant cell structure where photosynthesis takes place is called…
chloroplast
This site serves as the synthesis of rRNA
nucleolus
The ( ______) helps form the cytoskeleton of the cell?
microtubules
Responsible for transport of materials between the nucleus and cytoplasm.
nuclear pore
This is responsible for hunting down free radicals in the cell and converting in to safer molecules.
peroxisome
What cell feature contains digestive enzymes which breaks things down?
lysosomes
Dogs have a haploid chromosome number of 78. How many chromosomes do their gametes have?
39
Phase where cell continue to grow to get ready for cell division.
Gap 2
Sexual reproduction in animals requires _____.
germ cells
meiosis
fertilization
Cells with identical copy from parent cells.
somatic cells
Process by which female gametes or ovum are created.
oogenesis
Where crossing over takes place during prophase I.
chiasma
Meiosis is necessary part of sexual reproduction because it gives rise to __________ among offspring
genetic diversity
Process by which male gametes are created.
spermatogenesis
Meiosis ____ the parental chromosome number.
Choices:
Halves, Doubles, or Maintains?
Halves
Series of events that takes place in a cell as it grows and divide.
cell cycle
What phase?
Mitotic spindle extends as the chromosomes line up at the metaphase plate
metaphase
Protein structure that breaks both DNA strand of 2 non-sister chromatids.
synaptonemal complex
Carries genes from originally 2 completely different chromosomes.
recombinant chromosomes
Crossing overmixes up ____.
Choices:
Ribosomes, the nucleus, or the chromosomes
chromosomes
This is the phase where crossing over happens.
prophase I
Where is the electron transport system of a prokaryotic cell?
plasma membrane
What type of cell division does a prokaryote undergo?
binary fission
When was the cell classified into prokaryote and eukaryote?
1937
The combined observation of Hooke, Schleiden, and Schwann helped form:
cell theory
What did Rudolf Virchow’s study of cell disprove?
Choices:
A. Most cells require oxygen in order to survive
B. Spontaneous generation is a method for the creation of new cells.
C. The cell is the basic unit of life
B. Spontaneous generation is a method for the creation of new cells.
