Animalia Porifera, Coelenterata, Platyhelminthes Dan Annelida
Questions and Answers
- 1.
Proses embriogeni hewan terjadi melalui tahapan....
- A.
Zigot - morula - blastula - gastrula - tubuh organisme
- B.
Zigot - blastula - morula - gastrula - tubuh organisme
- C.
Zigot - morula - gastrula - blastula - tubuh organisme
- D.
Zigot - blastula - gastrula - morula - tubuh organisme
Correct Answer
A. Zigot - morula - blastula - gastrula - tubuh organismeExplanation
The correct answer is "zigot - morula - blastula - gastrula - tubuh organisme". This is the correct sequence of developmental stages in animal embryogenesis. The zygote is formed by the fusion of sperm and egg, which then undergoes cell division to form a solid ball of cells called the morula. The morula then undergoes further cell division and rearrangement to form a hollow ball of cells called the blastula. The blastula then undergoes gastrulation, where the cells rearrange and differentiate to form the three germ layers (ectoderm, mesoderm, and endoderm) and the body plan of the organism is established.Rate this question:
-
- 2.
Porifera tidak memiliki sistem peredaran darah, oleh karena itu makanan diedarkan oleh ....
- A.
Koanosit
- B.
Sel skleroblas
- C.
Arkeosit
- D.
Sel ameboid
Correct Answer
D. Sel ameboidExplanation
Porifera, or sponges, do not have a circulatory system. Instead, food is distributed through the body by amoeboid cells. These cells are capable of changing their shape and moving around, allowing them to transport nutrients to different parts of the sponge's body. This method of food distribution is necessary for sponges since they lack specialized organs or systems for digestion and circulation.Rate this question:
-
- 3.
Porifera dapat menanggapi rangsang dari luar tubuhnya karena memiliki bagian ....
- A.
Koanosit
- B.
Pinakosit
- C.
Sel skleroblas
- D.
Sel ameboid
Correct Answer
B. PinakositExplanation
Porifera dapat menanggapi rangsang dari luar tubuhnya karena memiliki bagian pinakosit. Pinakosit adalah jenis sel yang terdapat pada tubuh Porifera dan berfungsi sebagai sel pelindung serta berperan dalam proses penangkapan dan pencernaan partikel makanan. Sel-sel pinakosit ini juga berperan dalam merespons rangsang dari luar tubuh, seperti cahaya atau sentuhan. Dengan adanya sel pinakosit, Porifera dapat merespons dan berinteraksi dengan lingkungannya.Rate this question:
-
- 4.
Kelas : 1. Calcarea 2. Hexactinellida 3. Demospongia Zat penyusun kerangka : A. zat silikat B. spongin C. zat kapur Pasangan yang benar adalah ...
- A.
1-C,2-A,3-B
- B.
1-A,1-B,3-C
- C.
1-B,2-A,3-C
- D.
1-B,2-C,3-A
Correct Answer
A. 1-C,2-A,3-BExplanation
The correct answer is 1-C, 2-A, 3-B. This means that the correct pairing for the composition of the skeleton is: Calcarea (1) - zat kapur (C), Hexactinellida (2) - zat silikat (A), Demospongia (3) - spongin (B).Rate this question:
-
- 5.
Spongia sp. dimanfaatkan oleh manusia untuk ...
- A.
Bahan dinamit
- B.
Penggosok tubuh
- C.
Bahan isolator
- D.
Sumber protein
Correct Answer
B. Penggosok tubuhExplanation
Spongia sp. is utilized by humans as a body scrub. This is because Spongia sp. has a rough texture that makes it effective in exfoliating and removing dead skin cells from the body. It can help improve blood circulation and leave the skin feeling smooth and rejuvenated. Additionally, using Spongia sp. as a body scrub can also help unclog pores and prevent acne breakouts.Rate this question:
-
- 6.
Cnidaria dan Ctenophora digolongkan dalam kelompok Coelenterata karena ...
- A.
Memiliki rongga tubuh yang mengekskresikan sisa metabolisme
- B.
Memiliki sistem saraf tangga tali
- C.
Memiliki rongga tubuh yang berfungsi sebagai usus
- D.
Tidak memiliki anus
Correct Answer
C. Memiliki rongga tubuh yang berfungsi sebagai ususExplanation
Cnidaria dan Ctenophora digolongkan dalam kelompok Coelenterata karena memiliki rongga tubuh yang berfungsi sebagai usus. This means that both Cnidaria and Ctenophora have a body cavity that functions as a digestive system. This is a characteristic feature of organisms in the Coelenterata group, which is why they are classified together.Rate this question:
-
- 7.
Dalam kelas Hydrozoa, yang spesiesnya berhabitat di air tawar adalah ....
- A.
Obelia sp
- B.
Physalia
- C.
Aurelia
- D.
Hydra
Correct Answer
D. HydraExplanation
The correct answer is hydra. Hydra is a species in the class Hydrozoa that is known to inhabit freshwater environments.Rate this question:
-
- 8.
Untuk melemahkan musuh dan mangsanya Cnidaria melepaskan racun yang dihasilkan oleh ....
- A.
Tentakel
- B.
Mesoglea
- C.
Nematosista
- D.
Polip
Correct Answer
C. NematosistaExplanation
Cnidaria weakens its enemies and prey by releasing toxins produced by nematocysts. Nematocysts are specialized cells found in the tentacles of Cnidaria, such as jellyfish and sea anemones. These cells contain venomous barbs that can inject toxins into their targets, immobilizing or killing them. The release of these toxins allows Cnidaria to defend themselves against predators or capture their prey more effectively.Rate this question:
-
- 9.
Perkembangan Aurelia yang benar adalah ....
- A.
Zigot - planula - skifistoma - strobila - efira - medusa
- B.
Planula - skifistoma - zigot - strobila - efira - medusa
- C.
Medusa - palnula - skifistoma - stobila - efira - zigot
- D.
Medusa - skifistoma - stobila - efira - zigot - planula
Correct Answer
A. Zigot - planula - skifistoma - strobila - efira - medusaExplanation
The correct order of development for Aurelia is zigot (fertilized egg) - planula (larva) - skifistoma (polyp) - strobila (polyp with reproductive structures) - efira (young medusa) - medusa (adult jellyfish). This sequence represents the typical life cycle of Aurelia, starting from the fertilized egg, progressing through different larval and polyp stages, and finally reaching the adult medusa stage.Rate this question:
-
- 10.
Hewan yang biasa kita kenal sebagai ubur-ubur termasuk dalam kelas ...
- A.
Ctenophora
- B.
Hydrozoa
- C.
Scyphozoa
- D.
Anthozoa
Correct Answer
C. ScyphozoaExplanation
The correct answer is scyphozoa. Ubur-ubur, or jellyfish, are commonly known to belong to the class Scyphozoa. This class includes various species of jellyfish characterized by their bell-shaped body and stinging tentacles. They are typically found in marine environments and have a complex life cycle involving both a polyp and a medusa stage. The other options, ctenophora, hydrozoa, and anthozoa, refer to different classes of marine organisms but are not specifically associated with jellyfish.Rate this question:
-
- 11.
Ciri-ciri umum Platyhelminthes adalah ...
- A.
Tubuh pipih dorsoventral
- B.
Triploblastik selomata
- C.
Hidup sebagai parasit
- D.
Telur berkembang menjadi larva
Correct Answer
A. Tubuh pipih dorsoventralExplanation
The correct answer is "tubuh pipih dorsoventral." This means that the general characteristic of Platyhelminthes is having a flat body that is compressed from top to bottom. This adaptation allows them to live in various habitats, including aquatic environments and as parasites in other organisms. The flat shape also helps them to absorb nutrients efficiently through their body surface.Rate this question:
-
- 12.
Pernapasan pada Platyhelminthes berlangsung dengan cara ...
- A.
Melalui sistem pernapasan sederhana
- B.
Menggunakan trakea
- C.
Melalui faring dan kerongkongan
- D.
Difusi melalui permukaan tubuh
Correct Answer
D. Difusi melalui permukaan tubuhExplanation
The correct answer is "difusi melalui permukaan tubuh" (diffusion through the body surface). Platyhelminthes, also known as flatworms, have a simple body structure with a thin and flat body shape. They lack specialized respiratory organs such as gills or lungs. Instead, they rely on the process of diffusion to exchange gases with their environment. Oxygen from the surrounding water or air diffuses across their thin body surface and enters their cells, while carbon dioxide produced by cellular respiration diffuses out of their body. This method of respiration is efficient for small and flat organisms like Platyhelminthes.Rate this question:
-
- 13.
Sistem protonefridia pada Platyhelminthes berfungsi untuk ...
- A.
Menjaga keseimbangan osmosis dengan lingkungannya
- B.
Sebagai alat transportasi dan ekskresi
- C.
Mengatur reproduksi dengan perkawinan silang
- D.
Mengendalikan proses regenerasi dengan fragmentasi
Correct Answer
B. Sebagai alat transportasi dan ekskresiExplanation
The protonephridial system in Platyhelminthes functions as a transportation and excretion tool. This system helps in the removal of metabolic wastes from the body and regulates the balance of water and solutes. It consists of a network of tubules and flame cells that filter waste products and excess water from the body cavity and release them outside the organism. Additionally, the protonephridial system also plays a role in maintaining osmotic balance with the environment by regulating the concentration of solutes in the body fluids.Rate this question:
-
- 14.
Kebiasaan makan air tawar mentah perlu dihindari karena ikan air tawar dapat menjadi inang perantara dari cacing ...
- A.
Clonorchis sinensis
- B.
Fasciola hepatica
- C.
Taenia saginata
- D.
Schistosoma
Correct Answer
A. Clonorchis sinensisExplanation
The correct answer is clonorchis sinensis. Eating raw freshwater fish can lead to infection with clonorchis sinensis, a type of parasitic worm. This worm can live in the human liver and bile ducts, causing a disease known as clonorchiasis. Therefore, it is important to avoid consuming raw freshwater fish to prevent this type of infection.Rate this question:
-
- 15.
Untuk menjaga agar tidak tercerna oleh inangnya, tubuh cacing parasit umumnya dilapisi oleh ...
- A.
Zat tanduk
- B.
Zat kutikula
- C.
Zat kitin
- D.
Lapisan lendir
Correct Answer
B. Zat kutikulaExplanation
The correct answer is "zat kutikula". Parasitic worms have a protective outer covering called cuticle, which helps them avoid being digested by their host. The cuticle provides physical resistance and prevents the worm from being broken down by the host's digestive enzymes. This adaptation allows the worm to survive and continue its parasitic lifestyle.Rate this question:
-
- 16.
Annelida yang dapat dimanfaatkan sebagai makanan berprotein tinggi adalah ...
- A.
Eunice viridis dan lysidice oele
- B.
Tubifex sp. dan lysidice oele
- C.
Nereis virens dan tubifex sp.
- D.
Nereis virens dan eunice viridis
Correct Answer
A. Eunice viridis dan lysidice oeleExplanation
Eunice viridis and Lysidice oele are annelids that can be utilized as a high-protein food source.Rate this question:
-
- 17.
Saat lintah menempel pada kulit manusia dan mengisap darah, korban tidak merasa sakit dan darahnya tidak membeku karena lintah mengeluarkan zat ....
- A.
Anestesi dan antitoksin
- B.
Anestesi dan antikoagulan
- C.
Heparin dan enzim
- D.
Enzim dan glukosa
Correct Answer
B. Anestesi dan antikoagulanExplanation
When a leech attaches to human skin and sucks blood, the victim does not feel pain and their blood does not clot because the leech releases an anesthetic substance to numb the area and an anticoagulant to prevent blood from clotting.Rate this question:
-
- 18.
Alat ekskresi pada cacing tanah berupa ...
- A.
Protonefridia
- B.
Tubulus ginjal
- C.
Nefridia
- D.
Buluh malphigi
Correct Answer
C. NefridiaExplanation
Nefridia adalah alat ekskresi pada cacing tanah. Alat ini berfungsi untuk mengeluarkan limbah dan zat-zat sisa dari tubuh cacing tanah. Nefridia terdiri dari serangkaian saluran yang berhubungan dengan rongga tubuh cacing dan membantu dalam proses pengeluaran limbah. Dengan demikian, nefridia adalah alat ekskresi yang tepat pada cacing tanah.Rate this question:
-
- 19.
Cacing tanah pheretima mempertahankan diri dengan cara ...
- A.
Mengeluarkan cairan selom
- B.
Memiliki alat sengat
- C.
Memutuskan bagian tubuhnya
- D.
Menghasilkan racun
Correct Answer
C. Memutuskan bagian tubuhnyaExplanation
Cacing tanah pheretima mempertahankan diri dengan cara memutuskan bagian tubuhnya. Ketika cacing ini terancam oleh predator atau terluka, ia dapat dengan cepat memutuskan bagian tubuhnya yang terkena bahaya. Bagian tubuh yang terputus ini akan terus bergerak dan mengalami regenerasi, sehingga cacing dapat melarikan diri dan mempertahankan kelangsungan hidupnya.Rate this question:
-
- 20.
Cacing Annelida lebih tinggi tingkatan taksonominya dibanding Platyhelminthes karena Annelida ....
- A.
Memiliki alat reproduksi
- B.
Tubuh bersegmen-segmen
- C.
Memiliki alat ekskresi
- D.
Memiliki rongga tubuh sejati
Correct Answer
D. Memiliki rongga tubuh sejatiExplanation
Annelida memiliki rongga tubuh sejati, sedangkan Platyhelminthes tidak memiliki rongga tubuh sejati. Rongga tubuh sejati adalah rongga di dalam tubuh hewan yang dikelilingi oleh lapisan jaringan epitelium. Rongga ini berfungsi untuk melindungi organ-organ dalam tubuh dan juga sebagai tempat peredaran cairan tubuh. Kehadiran rongga tubuh sejati pada Annelida menunjukkan tingkat kompleksitas yang lebih tinggi dalam taksonomi dibandingkan dengan Platyhelminthes.Rate this question:
-
Sekolah Global Mandiri - Wilayah Negara Kesatuan Republik Indonesia
Sekolah Global Mandiri - Wilayah Negara Kesatuan Republik Indonesia
Seleksi Penerimaan Mahasiswa Baru Poltekkes Hermina Tahun 2020
Seleksi Penerimaan Mahasiswa Baru Poltekkes Hermina Tahun 2020
Back to top