Science Flashcards
Which cell is in metaphase?
C. (Metaphase)
Place the diagrams in order from first to last (Put a comma to separate each letter (Ex. A, B, C, D, E, F)
D (Prophase), A (Prometaphase), F (Metaphase), C (Anaphase), E (Telophase) & B (Cytokinesis)
Which cell is in the “in between” phase of mitosis?
C. (Metaphase)
Which cell is in the first phase of mitosis?
D. (Prophase)
What is the longest phase of the cell cycle?
Interphase
In cell A, what structure is labeled X?
Centrioles.
Cells A and F show an early and a late stage of the same phase of mitosis. What phase is it?
Prophase.
The ___ ____ are female sex cells.
XX; Egg cells.
A _______ is a structure formed when two homologous chromosomes synapse during prophase.
Tetrads; Tetrad.
Sister chromatids attach at the __________.
Centromere.
Crossing over occurs during?
Meiosis I ; Prophase I.
A human sperm cell has __ chromosomes.
23.
If a parent cell has 16 chromosomes, then each of the daughter cell which are products of meiosis will have _ chromosomes.
8.
The _____ _____ are male sex cells.
XY; Sperm cells.
In _________ _, homologous chromosomes align in the equator.
Metaphase I ; Metaphase 1.
Meiosis begins with one cell and ends with _ cells.
4.
_______ is the process of producing male and female gametes.
Gametogenesis ; Meiosis.
_________ during this phase chromosomes line up in the middle.
Metaphase.
_________ during this phase chromosomes line up in the middle.
Metaphase.
What is the division of the cytoplasm called?
Cytokinesis.
In what phase does the cell begin to split the cytoplasm and daughter cells first become visible in mitosis?
Telophase.
What is the name of the structure that connects the two sister chromatids?
Centromere
In a chromosome pair connected by a centromere, what is each individual chromosome half called?
Sister Chromatid.
In a chromosome pair connected by a centromere, what is each individual chromosome half called?
Sister Chromatid.
What is the phase where chromatid condenses to form chromosomes?
Prophase.
During what phase of mitosis do centromeres divide and the chromosomes move toward their respective poles?
Anaphase.
What is the step of cell division where 2 identical daughter cells are formed?
Cytokinesis.
Which phase of cell cycle occurs when the cell is preparing to divide so it grows in size making organelles and copying DNA?
Interphase.
What forms across the center of a plant cell near the end of telophase?
Cell Plate.
Match each term with its definition by writing the letter of the term on the line provided.
: Body cells
Somatic cells.
Match each term with its definition by writing the letter of the term on the line provided.
: XX chromosomes
Female.
Match each term with its definition by writing the letter of the term on the line provided.
: Halves the number of chromosomes per cell.
Meiosis 2 ; Meiosis II.
Match each term with its definition by writing the letter of the term on the line provided.
: XY chromosomes
Male.
Match each term with its definition by writing the letter of the term on the line provided.
: Separates homologous pairs of chromosomes
Meiosis I ; Meiosis 1.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
Cytokinesis begins.
T = Telophase
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
The sister chromatids are moving apart.
A = Anaphase
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
Two daughter cells are formed.
T = Telophase
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
The spindle fiber is formed.
P = Prophase.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
The nuclear membrane re appears.
T = Telophase.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
The cytoplasm of the cell is being divided.
T = Telophase.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
The nuclear membrane fades from view.
P = Prophase.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
Chromosomes are not visible.
I = Interphase.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
Chromatids line up along the equator.
M = Metaphase.
Match the term to the description. Use capital letters.
I = Interphase P = Prophase M = Metaphase T = Telophase A = Anaphase
The chromosomes are being replicated.
I - Interphase.
Chromosomes have genes for the same traits in the same order on both chromosomes.
Homologous.
Would somatic cells (skin, hair, muscle cells, etc.) be considered haploid or diploid?
Diploid.
How many daughter cells are created at the end of meiosis II?
And are these cells considered haploid or diploid?
4; 4 daughter cells ; 4 cells. Haploid.
Would egg and/or sperm cells be considered haploid or diploid?
Haploid.
What is the haploid number of chromosomes in humans?
23 chromosomes ; 23.
______ are sperm or egg cells.
Sex cells ; germ cells ; gametes.
______ are sperm or egg cells.
Sex cells ; germ cells ; gametes.
How many daughter cells are created at the end of meiosis I?
2 ; 2 daughter cells ; 2 cells.
What is the diploid number of chromosomes in humans?
46 chromosomes ; 46.
The offspring of two parents obtain a single copy of every gene from each parent.
True or False?
True.
A gamete must contain one complete set of genes.
True.
Genes are located at specific positions on spindles.
False.
A pair of corresponding chromosomes are homozygous.
False.
Is responsible for breaking down the bodies of dead organisms?
Bacteria
Which trophic level has the greatest stored energy?
First.
It act as a storage for bile.
Gallbladder.
It secretes juice to reduce the acidity of the chyme.
Pancreas.
It is where the food enters.
Mouth.
It is a process of breaking down of food into nutrients.
Digestion.
It produces bile for breaking down fats.
Liver.
It is the storage of feces.
Rectum.
It is a process of taking food into the body by swallowing it.
Ingestion.
It contains villi that helps in major absorption.
Small intestine.
It is the process of taking in nutrients by the cell.
Absorption.
It is the folds in the stomach that helps in digestion of food.
Rugae
When the bolus reaches the stomach it is now called _____.
Chyme.
It is a wave of muscular contractions that push the bolus down towards the stomach.
Peristalsis.
It is an enzyme that can be found in the saliva that helps to break down carbohydrates.
Amylase.
It allows the bolus to pass through the esophagus rather than the windpipe.
Epiglottis.
It is where the feces expelled from the body.
Anus.
It is where the water and salt are being absorbed.
Large Intestine.
It is where the water and salt are being absorbed.
Large Intestine.
It is a food until the tongue moves around the food and called __________.
Bolus.
It is the process of removing any leftover wastes.
Egestion.
