SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
PCAT Biology Reproduction
Start Test
Study First
Subjects
:
pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids
Vaginal Canal
Telophase (Interphase)
Tetrad
Stamen
2. 1) G1: Initiates interphase. is described as the active growth phase and can vary in length. the cell increases in size and synthesizes proteins. the length of the G1 phase determines the length of the entire cell cycle 2) S: the period of DNA synthe
Four Parts of Interphase
Second Meiotic Division
Cervix
Prophase (Interphase)
3. Located on scrotum -site for testosterone
Testes
Cervix
Spermatozoa
Flower
4. Menstrual flow
Menses
External Fertilization
Endosperm
Estrogens
5. Can be fertilized during the 12-24hr after ovulation -occurs in the lateral - widest portion of the fallopian tube -sperm must travel through the vaginal canal - cervix - uterus - and into the fallopian tubes to reach the ovum
Metaphase (Interphase)
Sporophyte
Fertilization
Telophase (Interphase)
6. A means of reproduction
Corona Radiata
Sporophyte
Cellular Division (Unicellular Organisms)
Fertilization
7. Produces monoploid spores that develop into pollen grains
Mature sperm
Menstruation
Hypocotyl
Anther
8. Similar to mitosis in that a cell duplicates its chromosomes before undergoing the process -whereas mitosis preserves the diploid number of the cell - meiosis produces the haploid (1N) number - having the number of chromosomes
Asexual Reproduction
Cellular Division (Unicellular Organisms)
Meisosis vs. Mitosis
Anaphase (Interphase)
9. (In Prophase I) process where homologous chromosomes (chromosomes that code for the same traits - one inherited form each parent) come together and intertwine
Cellular Division (Unicellular Organisms)
Synapsis
Rhizomes
Mature sperm
10. Eggs
Natural Vegatative Propagation
Progesterone
Oocytes
Disjunction
11. Centriole pairs are now at opposite poles of the cell
Metaphase (Interphase)
Chromatin
Prophase (Interphase)
Four Parts of Interphase
12. Surrounded by two layers of cells
Cytokinesis (Interphase)
Oocyte Cell Membrane
Ferns
Spermatogenesis
13. Ex: estrogens and progesterone -synthesized by ovaries
Acrosome
Female Sex Hormones
Mitosis
First Meiotic Division
14. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase
Centromere
Prophase I
Oocyte Cell Membrane
Zona Pellucida
15. Cell undergoes a period of growth and replication of genetic material before the initiation of mitosis -cell spends at least 90% of life in interphase -each chromosome is replicated so that during division - a complete copy of the genome can be distr
Anaphase (Interphase)
Ovaries
Angiosperms
Interphase
16. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear
Ferns
Prophase I
Gametophyte Generation
Spermatogenesis
17. The development of an unfertilized egg into an adult organism
Partenogenesis
Filament
Four Parts of Interphase
Spermatogenesis
18. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes
Sexual Reproductive Mechanisms
Stamen
Dicots
Meristems
19. Found in the tips of roots and stems where growth in length occurs
Spermatogonia
Sporophyte
Apical Meristem
Asexual Reproduction in Plants
20. Meristems provide a source of cells that can develop into an adult plant -can occur naturally or through human intervention -advantagous because it introduces no genetic variation and is a rapid form of reproduction
Cervix
Mitosis
Vegetative Propagation
Mosses
21. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle
Vegetative Propagation
Cellular Division (Multicellular Organisms)
Fertilization membrane
Sexual Reproduction Requires
22. Diploid cells that undergo meiosis to produce four haploid sperm of equal size
Flower
Acrosome
Tetrad
Spermatogonia
23. Cell division that follows karyokinesis
Spermatozoa
Sexual Reproduction in Animals
Cortical Reaction
Cytokinesis
24. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles
Ovaries
Seed Coat
Zona Pellucida
Anaphase I
25. Cut piece of stem can develop new roots in water or moist gorund - which can be used to accelerate root formation -layering: stems of certain plants - will take root when bent to the gorund and covered with soil -stem of one plant (scion) can be atta
External Fertilization
Artificial Vegetative Propagation
Synapsis
Primary Oocytes
26. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes
Gametophyte Generation
Cell Division
Sporophyte
Telophase (Interphase)
27. Male gonads - produce sperm in the tightly coiled seminiferous tubules
Polar Body
Zona Pellucida
Testes
First Meiotic Division
28. Passes through the penis and opens to the outside at its tip
Secondary Spermatocytes
Disjunction
Urethra
Female Sex Hormones
29. Undifferentiated tissues in plants
Meristems
Dizygotic (Fraternal) Twins
Sexual Reproduction Requires
Follicle
30. Chromosomes condense - and the centriole pairs (in animals) separate and move towards the opposite poles of the cell. the spindle apparatus forms between them - and the nuclear membrane dissolves - allowing the spindle fibers to interact with the chr
Fission
Interphase
Telophase I
Prophase (Interphase)
31. Simple form of asexual reproduction seen in prokaryotic organisms -DNA replicates and a new plasma membrane and cell wall grow inward along the midline of the cell - dividing it into two equally size cells with equal maounts of cytoplasm - each conta
Cell Plate
Vaginal Canal
Fission
Flower
32. Centromeres split so that each chromatid has its own distinct centromere - thus allowing sister chromatids to separate. The sister chromatids are pulled toward the opposite poles of the cell by the shortening of the spindle fibers. Spindle fibers are
Partenogenesis
Anaphase (Interphase)
Menstruation
Flower
33. Triggered by acrosomal reaction causing calcium ions to be released into the cytoplasm
Spermatogonia
Four Parts of Interphase
Cortical Reaction
Disjunction
34. Replication of the nucleus followed by unequal cytokinesis -membrane pinches inward to forma new cell that is smaller in size but genetically identical to the parent cell
Anaphase (Interphase)
Sporophyte Generation
Budding
Primary Oocytes
35. Secretes estrogen and progesterone
Corpus Luteum
Four Parts of Interphase
Ovum
Tubers
36. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually
Tubers
Telophase I
Gametophyte Generation
Spermatogenesis
37. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes
Cell Division
Meiosis
Mature sperm
Tetrad
38. Uncoiled DNA
Fertilization
Plant vs. Animal cells
Testosterone
Chromatin
39. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth
First Meiotic Division
Gametes
Vaginal Canal
Chromatin
40. Formed due to cortical reaction -hard layer that surrounds the ovum cell membrane and prevents multiple fertilizations -Followed by the fusion of sperm nucleus and form a diploid zygote
Anther
Fertilization membrane
Synapsis
Spore Formation
41. Part of embryo that is the precursor of the upper stem and leaves
epicotyl
Stamen
Uterus
Spore Formation
42. Nuclear membrane forms around each new nucleus -at this point - each chromosome still consists of sister chromatids joined at the centromere
Second Meiotic Division
First Meiotic Division
Telophase I
Synapsis
43. Production of offspring without fertilization -form new organisms by a single parent cell -offspring are genetic carbon copies of their parent cells -genetically identical to the parent cells (except mutations) -ex: fission - budding - regeneration -
Uterus
Asexual Reproduction
Disjunction
Sporophyte
44. Four haploid cells produced from the second meiotic division after secondary spermatocytes
Interphase
Metaphase Plate (Interphase)
Spermatids
Male Urethra
45. Reproductive structure of angiosperms
Synapsis
Luteal Phase
Mature Ovum
Flower
46. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation
Embryo
Sporophyte Generation
Hermaphrodites
Oocyte Cell Membrane
47. Female gonads that produce oocytes
Menses
Ovaries
Runners
Mature sperm
48. Plant cells lack centrioles -spindle apparatus is synthesized by mcrotubule organizing centers that are not visible -cytokinesis in animal cells proceeds through production of a cleavage furrow -Plant cells are rigid and can't form cleavage furrows -
Fertilization/Conjugation
Plant vs. Animal cells
Vegetative Propagation
Tubers
49. First barrier that the sperm must penetrate -enzymes secreted by the sperm aid in penetration of the corona radiata -arosome is responsible for penetrating the zona pellucida; it releases enzymes that digest this layer - thereby allowing the sperm to
Follicular phase
Corona Radiata
Cytokinesis
Vegetative Propagation
50. Sperm production -occurs in the seminiferous tubules
Runners
Flower
Embryo
Spermatogenesis