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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. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm
Flower
Corpus Luteum
Dizygotic (Fraternal) Twins
Monocots
2. Caplike structure - derived from the Golgi apparatus - develops over the anterior half of the head -contains enzymes needed to penetrate the tough outer covering of the ovum
Acrosome
Angiosperms
Cellular Division (Multicellular Organisms)
Menstrual Cycle
3. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids
Spermatogenesis
Fertilization membrane
Embryo
Tetrad
4. Near the end of telophase - the cytoplasm divides into two daughter cells - each wit a complete nucleus and its own set of organelles -In animal cells - a cleavage furrow forms - and the cell membrane indents along the equator of the cell and finally
Spermatozoa
Interphase (Meiosis)
Cytokinesis (Interphase)
Follicular phase
5. Outer layer of oocyte cell membrane
Ovum
Spores
Corona Radiata
Crossing Over
6. 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
Meristem Cells
Progesterone
Fission
Anther
7. Common passageway for both the reproductive and exretory systems
Cambium
Male Urethra
Natural Vegatative Propagation
Urethra
8. Contains elongated cell with head - tail - neck - and body
Sexual Reproduction Requires
First Meiotic Division
Mature sperm
Spermatids
9. Undergoes disjunction
Vaginal Canal
Anaphase I
Cambium
Hermaphrodites
10. Cell division that follows karyokinesis
Partenogenesis
Gametes
Fertilization
Cytokinesis
11. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth
Progesterone
Primary Oocytes
Sperm Travels...
Testosterone
12. Diploid cells that undergo meiosis to produce four haploid sperm of equal size
Follicular phase
Spermatogonia
Anaphase I
Stamen
13. Part of embryo that develops into the lower and root
Follicle
Hypocotyl
Synapsis
Zona Pellucida
14. Fibers of the spindle apparatus attach to each chromatid at the centromere to align the chromosomes at the center of the cell (equator)
Endosperm
Meiosis
Metaphase Plate (Interphase)
Ferns
15. Consists almost entirely of the nucleus - which contains the paternal genome
Head of Sperm
Crossing Over
Gonads
Dizygotic (Fraternal) Twins
16. Hormonal secretions of the ovaries - the hypothalamus - and the anterior pituitary play important roles in the female reproductive cycle -divided into the follicular phase - ovulation - the luteal phase - and menstruation
Estrogens
Menstrual Cycle
Cytokinesis
Gonads
17. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase
Cervix
Crossing Over
Centromere
Acrosome
18. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct
Immature ovum
Spore Formation
Chromatin
Telophase I
19. Two haploid cells yielded from meiotic division of primary spermatocytes
Secondary Spermatocytes
Telophase I
Testes
epicotyl
20. 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 -
Plant vs. Animal cells
Cervix
Chromatin
Telophase I
21. Result when a single zygote splits into two embryos
Hermaphrodites
Meiosis
Prophase I
Monozygotic (identical) Twins
22. 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
Corona Radiata
Synapsis
Interphase
Meisosis vs. Mitosis
23. 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
Dizygotic (Fraternal) Twins
Vegetative Propagation
Prophase (Interphase)
Dicots
24. Part of embryo that grows and feeds the embryo
Cytokinesis
Ovum
Asexual Reproduction in Plants
Endosperm
25. Uncoiled DNA
Meristem Cells
Spermatids
Chromatin
Ovum
26. Sporophyte generation is the dominant - familiar form
Ferns
Testes
Chromatin
Rhizomes
27. Located on scrotum -site for testosterone
Apical Meristem
Metaphase I
Fission
Testes
28. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids
Regeneration
Secondary Oocyte
Interphase (Meiosis)
Cell Division
29. Produced in developing placenta if fertilization occurs - maintaining the corpus luteum and - thus - the supply of estrogen and progesterone that maintains the uterus - until the placenta takes over production of these hormones
Second Meiotic Division
Primary Spermatocytes
Apical Meristem
hCG (human Chorionic Gonadotrophin)
30. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation
Follicle
Fertilization/Conjugation
Spermatogonia
Sporophyte Generation
31. Lower - narrow end of the uterus -connects with the vaginal canal
Oocyte Cell Membrane
Ovum
Cervix
Vaginal Canal
32. Very similar to mitosis - except that meiosis II is not preceded by chromosomal replication -chromosomes align at the equator - separate and move to opposite poles - and are surrounded by a reformed nuclear membrane -new cells have the haploid number
Second Meiotic Division
Disjunction
Fertilization
Cellular Division (Unicellular Organisms)
33. Diploid cells of spermatogonia
Male Urethra
Cervix
Primary Spermatocytes
Sporophyte
34. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants
oviduct
Fertilization
Tubers
Budding
35. A means of reproduction
Rhizomes
Prophase I
Sexual Reproduction in Animals
Cellular Division (Unicellular Organisms)
36. The production of female gametes -occurs in the ovarian follicles
hCG (human Chorionic Gonadotrophin)
Asexual Reproduction
Oogenesis
Menstruation
37. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two
Spermatids
Fission
Cell Division
Menstruation
38. 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
Ovulation
hCG (human Chorionic Gonadotrophin)
Spores
Karyokinesis
39. 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
Artificial Vegetative Propagation
Ferns
External Fertilization
Crossing Over
40. Found in the tips of roots and stems where growth in length occurs
Apical Meristem
Cell Plate
Telophase (Interphase)
Ovaries
41. Part of embryo that is the precursor of the upper stem and leaves
Head of Sperm
epicotyl
Meisosis vs. Mitosis
Embryo
42. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear
Flower
Interphase
Cytokinesis (Interphase)
Prophase I
43. Part of embry that are seed leaves
Spore Formation
Ovaries
Cotyledons
Filament
44. 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
Gonads
Mosses
Oogenesis
Cortical Reaction
45. The spindle apparatus disappears. A nuclear membrane forms around each set of newly formed chromosomes. Thus - each nucleus contains the same number of chromosomes (the diploid number 2n) as the original or parent nucleus. The chromosomes uncoil - re
Plant vs. Animal cells
Sperm Travels...
Menses
Telophase (Interphase)
46. Produced after meioisis from spermatids that undergo a series of changes -AKA mature sperm -specialized for transporting the sperm nucleus to the ovum -elongated cell with a head - neck - body - and tail
Ovaries
Asexual Reproduction in Plants
Polar Body
Spermatozoa
47. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction
Hermaphrodites
Meristem Cells
Sporophyte
Meristems
48. Centriole pairs are now at opposite poles of the cell
Estrogens
Gametes
hCG (human Chorionic Gonadotrophin)
Metaphase (Interphase)
49. 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
Progesterone
Estrogens
Apical Meristem
Prophase (Interphase)
50. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion
Centromere
Telophase I
Monozygotic (identical) Twins
Flagellum