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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. Male gonads - produce sperm in the tightly coiled seminiferous tubules
Testosterone
Cortical Reaction
Testes
Filament
2. AKA lateral meristem -located between the xylem and phloem
Sexual Reproduction in Angiosperms
Hypocotyl
Anaphase (Interphase)
Cambium
3. Part of embryo that grows and feeds the embryo
Ovaries
Endosperm
Asexual Reproduction in Plants
Head of Sperm
4. Centriole pairs are now at opposite poles of the cell
Centromere
Metaphase (Interphase)
Acrosome
Telophase (Interphase)
5. Have two cotyledons that absorb the endosperm
Ovaries
Testes
Chromatin
Dicots
6. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes
Meiosis
Primary Oocytes
Crossing Over
Apical Meristem
7. Stems running above and along the gorund - extending form the main stem -can produce new roots and upright stems
Spermatids
Metaphase (Interphase)
Runners
Flagellum
8. 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
Sporophyte Generation
Secondary Oocyte
Ovaries
Four Parts of Interphase
9. Menstrual flow
External Fertilization
Menses
Fertilization membrane
Cambium
10. 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
Gametophyte Generation
Centromere
Telophase (Interphase)
Angiosperms
11. 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
Cellular Division (Unicellular Organisms)
Oocytes
Anaphase (Interphase)
Anaphase I
12. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm
Natural Vegatative Propagation
Oocytes
Spores
Dizygotic (Fraternal) Twins
13. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries
Second Meiotic Division
Four Parts of Interphase
Single Mature Egg
Corpus Luteum
14. Specialized cells with hard coverings that prevent loss of water
Cellular Division (Unicellular Organisms)
Spermatogenesis
Spores
Synapsis
15. Bulbs - tubers - runners - rhizomes
Immature ovum
Natural Vegatative Propagation
Head of Sperm
Testosterone
16. 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
Cytokinesis (Interphase)
Spore Formation
Prophase (Interphase)
Second Meiotic Division
17. 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
Embryo
Oogenesis
Fission
Telophase I
18. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually
Telophase I
Gametophyte Generation
Plant vs. Animal cells
Four Parts of Interphase
19. The development of an unfertilized egg into an adult organism
Metaphase (Interphase)
Polar Body
Partenogenesis
hCG (human Chorionic Gonadotrophin)
20. Undergoes disjunction
Cell Division
Primary Spermatocytes
Anaphase I
Tetrad
21. Method of growth - development - and replacement of worn-out cells
Male Urethra
Cellular Division (Multicellular Organisms)
Spermatids
Flower
22. Lower - narrow end of the uterus -connects with the vaginal canal
Ovaries
Cervix
Spermatogenesis
Immature ovum
23. 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
Corona Radiata
Metaphase (Interphase)
Acrosome
Meristems
24. Ex: estrogens and progesterone -synthesized by ovaries
Sperm Travels...
Internal Fertilization
Female Sex Hormones
Embryo
25. 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 -
Polar Body
Apical Meristem
Testes
Asexual Reproduction
26. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane
Sexual Reproduction in Angiosperms
Cell Plate
Filament
Vaginal Canal
27. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes
Menses
Fertilization
Plant vs. Animal cells
Urethra
28. 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
Synapsis
Urethra
Acrosomal Process
Budding
29. Have one cotyledon
Natural Vegatative Propagation
Monocots
External Fertilization
Spermatogenesis
30. The production of female gametes - occurs in the ovaries
Oogenesis
Tubers
Head of Sperm
Secondary Oocyte
31. 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
Prophase (Interphase)
Spermatids
Seed Coat
Mature Ovum
32. Two haploid cells yielded from meiotic division of primary spermatocytes
Spermatozoa
Secondary Spermatocytes
Meristem Cells
Spermatogonia
33. Have both functional male and female gonads
Hermaphrodites
Fertilization/Conjugation
Metaphase I
Chromatin
34. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation
Corona Radiata
Sporophyte Generation
Gonads
Anther
35. Undifferentiated tissues in plants
Tubers
Estrogens
Cell Plate
Meristems
36. Nuclear division and followed by cell division
Flower
Spores
Karyokinesis
Gametes
37. Plants exhibit alternation of generation in which a diploid generation is succeeded by a haploid generation -diploid saprophyte generation produces haploid spores - which develop into the haploid saprophyte generation
Meiosis
Spore Formation
Scrotum
Telophase (Interphase)
38. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils
Sporophyte
Fission
Meristems
Sexual Reproduction in Angiosperms
39. Sporophyte generation is the dominant - familiar form
Ferns
Testosterone
First Meiotic Division
Interphase (Meiosis)
40. Thin and stalk like with a terminal sac called the anther
Spermatogonia
Karyokinesis
Crossing Over
Filament
41. Surrounded by two layers of cells
Testes
Angiosperms
Sexual Reproduction in Animals
Oocyte Cell Membrane
42. AKA sperm production -occurs in the seminiferous tubules
Plant vs. Animal cells
Mitosis
Fertilization
Spermatogenesis
43. 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
Estrogens
Head of Sperm
Disjunction
Asexual Reproduction
44. 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 -
Synapsis
Plant vs. Animal cells
Flower
Head of Sperm
45. Part of embryo that develops from the outer covering of the ovule
Hermaphrodites
Luteal Phase
Cell Plate
Seed Coat
46. 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
Acrosomal Process
Cell Division
Mosses
Sexual Reproduction Requires
47. Reproductive structure of angiosperms
Flower
Metaphase Plate (Interphase)
Asexual Reproduction in Plants
Zona Pellucida
48. 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
hCG (human Chorionic Gonadotrophin)
Metaphase Plate (Interphase)
Seed Coat
Polar Body
49. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival
oviduct
Oogenesis
Scrotum
Tubers
50. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles
Ovaries
Flagellum
Cellular Division (Multicellular Organisms)
Oocytes