Exam 1 Flashcards
Which of the following is correct regarding the fact that as size increases in cells, the volume of the cell grows faster than the outer surface area?
A. Larger unicellular organisms engulf smaller unicellular organisms to get bigger.
B. Multicellular organisms most likely evolved as the nucleus of unicellular plants began to function as a cell organelle where photosynthesis occurs
C. Unicellular organisms are limited in how big they can grow
D. Cells of multicellular organisms aren’t limited in how big they can grow
C
The endosymbiotic theory states that eukaryotic cells evolved
A. When lots of prokaryotic cells fused together to become a multicellular bacterium
B. as the basic unit of life, and all organisms are made up of eukaryotic cells
C. because cells are limited in how large they can grow
D. when larger prokaryotic cells engulfed smaller ones and the two formed a relationship beneficial to both
D
Which of the following is correct? A. all bacteria have DNA B. all bacteria are eukaryotic C. all the cells in your body have chloroplasts D. all cells are multicellular
A
Just as your car converts gas to energy, cells must get energy from food. Which organelle functions to convert food into energy
Mitochondria
When viewing a specimen using a compound microscope, the specimen will appear to move backward and to the right if you move it …
forward and to the left
One way to characterize bacteria is based on shape. Which of the following is not one of these shapes?
- bacillus
- spirillum
- coccus
- tetrahydrus
tetrahydrus
A ___ is a cell organelle unique to plant cells and functions _____
chloroplast; as the site where sunlight energy is converted to glucose
enzymes
speed up chemical reactions
carbs
sugars
kinetic energy
energy of motion
yeast
living organism used to make bread, beer, wine
biochemistry
study of the chemistry of life
ATP
product of cellular respiration and fermentation
A facultative anaerobe coverts glucose to ATP …
preferably by cellular respiration but can by fermentation when oxygen is scarce
What was the independent variable in the fermentation lab?
various types of sugars used
Which is incorrect about a catalysts as a group?
catalysts are isomers of glucose and galactose
Which of the following is incorrect regarding cellular respiration
Cellular respiration occurs in an anaerobic environment
The rate of fermentation was determined …
by the amount of CO2 produced, a byproduct of fermentation
Which of the following is an example of potential energy?
In sucrose, the chemical bond that holds together the glucose and fructose
Which of the following is INCORRECT with regard to mitosis?
a. Mitosis occurs in most of the cells throughout your body.
b. Mitosis results in daughter cells that are identical to the parent cell.
c. Mitosis is the cell division that allowed you to grow from a single-celled zygote into a multicellular adult
form.
d. Mitosis helps in healing, such as repairing damaged tissues from cuts and abrasions.
e. Mitosis occurs only in the ovaries and testes.
e
One aspect of Metaphase I that differs from Metaphase II is
a. it immediately follows synthesis in the cell cycle.
b. this phase is unique to sperm.
c. homologous pairs and not sister chromatids line up on the metaphase plate.
d. no spindle apparatus is involved.
e. it only occurs in mitosis.
c
Gap 1
2n with non-duplicated chromosomes
sister chromatid
chromosome and its duplicate attached at a centromere
independent assortment
random way homologues line up on metaphase plate
