Multiple Choice Flashcards
(37 cards)
The ground tissue in leaves is specialized for what function?
Photosynthesis
The purpose of the cuticle is to…
Reduce evaporation
As a cell becomes larger, its…
Volume increases faster than its surface area
By the time a normal cell divides, you can assume that…
The cell’s volume has become larger than its surface area
After cell division, each daughter cell…
Has a higher surface area/volume ratio
When during the cell cycle are chromosomes visible?
Only during cell division
What phase is preparation for mitosis?
G2 phase
When during the cell cycle is a cells DNA replicated?
S phase
Interphase consists of what phases?
G1, S, and G2
What represents mitosis in its proper phase sequence?
Prophase, metaphase, anaphase, telophase
What is the role of spindle during mitosis?
To help separate chromosomes
The difference between cell division in plant and animals is that plant cells have _______
A cell plate
During normal Motorola cell division, a parent cell having four chromosomes will produce 2 daughter cells, each containing
Four chromosomes
Cancer is a disorder in which some cells have lost the ability to control their_______
Growth rate
Number of chromosomes in a gamete is represented by the symbol
N
If an organism’s diploid number is 12 what is its haploid?
6
Gametes are produced through this process
Meiosis
Chromosomes form tetrads during
Prophase I
Unlike mitosis, meiosis results in the formation of
Four genetically different cells
If an organism has 16 chromosomes in each of its egg cells, what is its diploid number?
32
How many eggs are produced at the end of meiosis in females?
1 egg, 3 polar bodies
What happens to the number of chromosomes per cell during meiosis?
Gets cut in half
The joining of an egg with sperm is called
Fertilization
Why are cells bigger than sperm?
The head of sperm is mainly nuclei
The cytoplasm divides unevenly giving the majority to one cell
It must be bigger to provide a food source to a developing zugote
