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. Reproductive structure of angiosperms
Oocytes
Telophase (Interphase)
Flower
Single Mature Egg
2. Split to form several bulbs
Ovum
Bulbs
Meristem Cells
Budding
3. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen
Bulbs
Regeneration
Follicle
Sperm Travels...
4. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore
Metaphase I
Cortical Reaction
Gonads
Plant vs. Animal cells
5. Result when a single zygote splits into two embryos
Prophase I
Monozygotic (identical) Twins
Ovaries
Ovulation
6. Triggered by acrosomal reaction causing calcium ions to be released into the cytoplasm
Cortical Reaction
Interphase (Meiosis)
Cellular Division (Unicellular Organisms)
Spermatogenesis
7. The development of an unfertilized egg into an adult organism
First Meiotic Division
Flagellum
Sexual Reproductive Mechanisms
Partenogenesis
8. Part of embryo that is the precursor of the upper stem and leaves
Gametophyte Generation
Meristem Cells
Single Mature Egg
epicotyl
9. AKA ovanan or fallopian tube -opens into the upper end of the uterus
Cotyledons
oviduct
Head of Sperm
epicotyl
10. AKA sperm production -occurs in the seminiferous tubules
Progesterone
Spermatogonia
Tubers
Spermatogenesis
11. The production of female gametes -occurs in the ovarian follicles
Oogenesis
Crossing Over
Sexual Reproduction in Animals
Spermatozoa
12. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival
Scrotum
Polar Body
Sexual Reproduction in Angiosperms
Spermatozoa
13. Regrowth of a lost or injured body part
Sexual Reproduction Requires
Regeneration
Fertilization/Conjugation
Prophase (Interphase)
14. Stems running above and along the gorund - extending form the main stem -can produce new roots and upright stems
Runners
Ovulation
hCG (human Chorionic Gonadotrophin)
Gonads
15. Sporophyte generation is the dominant - familiar form
Embryo
Ferns
Spore Formation
Secondary Oocyte
16. Undifferentiated tissues in plants
Four Parts of Interphase
Meristems
Oocytes
Embryo
17. (In Anaphase I) homologous pairs separate and are pulled to opposite poles of the cell -accounts for a fundamental Mendelian Law -each chromosome of paternal origin separates (or disjoins) from its homologue of maternal origin - and either chromosome
Spermatogonia
Ovaries
Spermatids
Disjunction
18. Causes the glands of the endometrium to mature and produce secretions that prepare it for the implantation of an embryo -essential for the maintenance of the endometrium
Cotyledons
Cellular Division (Multicellular Organisms)
Progesterone
Embryo
19. 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
Primary Oocytes
Cytokinesis
Sporophyte Generation
Interphase
20. A tubelike structure formed by the sperm once in contact with the membrane -extends to the cell membrane and penetrates it - fusing the sperm cell membrane with that of the ovum -Sperm nucleus now enters the ovum's cytoplasm to complete Meiosis II
Acrosomal Process
Cambium
Fertilization/Conjugation
hCG (human Chorionic Gonadotrophin)
21. Gametophyte is the dominant generation -smaller - short lived organism that depends on the gametophyte for energy and nutrients - sporophytes grow on top of the gametophytes and produce spores that develop into gametophytes
Karyokinesis
Mosses
Spores
Menstrual Cycle
22. (In Prophase I) chromatids of homologous chromosomes break at corresponding points and exchange equivalent pieces of DNA -occurs between homologous chromosomes and not between sister chromatids of the same chromosomes (the latter are identical - so c
Spermatids
Sperm Travels...
Internal Fertilization
Crossing Over
23. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses
Rhizomes
Cortical Reaction
Spermatogenesis
Menstruation
24. Surrounded by two layers of cells
Sexual Reproduction in Animals
Oocyte Cell Membrane
Fission
Ovaries
25. Have both functional male and female gonads
Menses
Ovaries
Crossing Over
Hermaphrodites
26. Have one cotyledon
Monocots
Interphase
Vegetative Propagation
Oogenesis
27. Produces monoploid spores that develop into pollen grains
Dicots
Mature sperm
Mitosis
Anther
28. Centriole pairs are now at opposite poles of the cell
Corpus Luteum
Metaphase (Interphase)
Anaphase (Interphase)
Ovaries
29. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle
Fertilization/Conjugation
Spermatozoa
Tubers
Sexual Reproduction Requires
30. Nuclear division and followed by cell division
Menstrual Cycle
Cytokinesis (Interphase)
Acrosome
Karyokinesis
31. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear
Bulbs
Mitosis
Prophase I
Luteal Phase
32. Egg
Ovum
Tetrad
Mosses
Primary Oocytes
33. 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 -
Apical Meristem
Synapsis
Cell Plate
Plant vs. Animal cells
34. Occurs midway through the cycle -a mature ovarian follicle bursts and releases an ovum -caused by a surge in LH (Luteinizing Hormone) that is preceded - and in part caused - by a peak in estrogen levels
Prophase (Interphase)
Ovulation
Menstruation
Acrosomal Process
35. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth
Primary Oocytes
Cortical Reaction
Seed Coat
Anaphase (Interphase)
36. (In Prophase I) process where homologous chromosomes (chromosomes that code for the same traits - one inherited form each parent) come together and intertwine
Stamen
epicotyl
Anaphase I
Synapsis
37. Four haploid cells produced from the second meiotic division after secondary spermatocytes
Testosterone
Plant vs. Animal cells
Spermatids
Monozygotic (identical) Twins
38. Produced when each meiotic division -rapidly degenerate
Fertilization membrane
Polar Body
Mature sperm
Primary Spermatocytes
39. Male gonads - produce sperm in the tightly coiled seminiferous tubules
Testes
Cytokinesis
Menses
Regeneration
40. Steroid hormones necessary for normal female maturation -stimulate the development of the female reproductive tract and contribute to the development of secondary sexual characteristics and sex drive -responsible for the thickening of the endometrium
Scrotum
Cell Division
Angiosperms
Estrogens
41. AKA lateral meristem -located between the xylem and phloem
Rhizomes
Female Sex Hormones
Cambium
Mitosis
42. Part of embryo that develops from the outer covering of the ovule
Cellular Division (Multicellular Organisms)
Second Meiotic Division
Seed Coat
Fertilization
43. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction
Monocots
Runners
Meristem Cells
Sexual Reproduction in Animals
44. Located on scrotum -site for testosterone
Follicle
Testes
Gonads
Plant vs. Animal cells
45. Pass from the testes through the vas deferens to the ejaculatory duct and then to the urethra
Plant vs. Animal cells
Runners
Cell Division
Sperm Travels...
46. Cell division that follows karyokinesis
Meisosis vs. Mitosis
External Fertilization
Cytokinesis
Artificial Vegetative Propagation
47. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth
Fertilization
Vaginal Canal
Progesterone
hCG (human Chorionic Gonadotrophin)
48. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes
Embryo
Plant vs. Animal cells
Meiosis
Male Urethra
49. 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
Cotyledons
Ovaries
Meisosis vs. Mitosis
Anaphase (Interphase)
50. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane
Crossing Over
Runners
Asexual Reproduction
Cell Plate