Tentamen (uitwerkingen)

Krok 1 Medicalination Practice Exam

0 keer verkocht

Vak
Computers

Instelling
Computers

The Krok 1 Medical Examination Practice Exam is designed for medical students preparing for Ukraine's Krok 1 exam, which assesses basic medical science knowledge. Topics include anatomy, physiology, biochemistry, and microbiology. Candidates will be tested on their foundational understanding of med...

[Meer zien]

Voorbeeld 4 van de 137 pagina's

Bekijk voorbeeld

Geupload op 8 oktober 2024
Aantal pagina's 137
Geschreven in 2024/2025
Type Tentamen (uitwerkingen)
Bevat Vragen en antwoorden

krok 1 medicalination

Instelling Computers
Vak Computers

Volgen

nikhiljain22

Lid sinds 6 maanden 94 documenten verkocht

€69,40

In winkelwagen

Op verlanglijstje

100% tevredenheidsgarantie
Direct beschikbaar na je betaling
Lees online óf als PDF
Geen vaste maandelijkse kosten

Krok 1 Medical Examination

1. Which of the following structures is involved in the production of ATP in a cell?
A) Ribosomes
B) Golgi apparatus
C) Mitochondria
D) Lysosomes
Answer: C) Mitochondria
Explanation: Mitochondria are known as the powerhouse of the cell, where ATP
production occurs during cellular respiration.

2. What is the primary function of ribosomes in a cell?
A) Energy production
B) Protein synthesis
C) Lipid synthesis
D) DNA replication
Answer: B) Protein synthesis
Explanation: Ribosomes are the site of protein synthesis in the cell, where mRNA is
translated into polypeptides.

3. Which of the following processes occurs during the S phase of the cell cycle?
A) DNA replication
B) Cytokinesis
C) Cell growth
D) Protein synthesis
Answer: A) DNA replication
Explanation: During the S phase, the cell replicates its DNA in preparation for
mitosis.

4. Which of the following is a characteristic of prokaryotic cells?
A) Nucleus
B) Membrane-bound organelles
C) Circular DNA
D) Linear chromosomes
Answer: C) Circular DNA
Explanation: Prokaryotic cells lack a nucleus and membrane-bound organelles, and
they have circular DNA.

5. Which type of RNA carries the genetic information from DNA to the ribosome?
A) tRNA
B) mRNA
C) rRNA
D) siRNA
Answer: B) mRNA
Explanation: mRNA (messenger RNA) carries genetic information from DNA in the
nucleus to the ribosome, where protein synthesis occurs.

6. The process by which a cell engulfs solid particles is called:
A) Pinocytosis
B) Exocytosis
C) Phagocytosis

1

, Krok 1 Medical Examination

D) Endocytosis
Answer: C) Phagocytosis
Explanation: Phagocytosis is the process by which a cell engulfs solid particles, such
as bacteria or debris.

7. In which organelle does the Krebs cycle occur?
A) Nucleus
B) Cytoplasm
C) Mitochondria
D) Endoplasmic reticulum
Answer: C) Mitochondria
Explanation: The Krebs cycle, a key part of cellular respiration, occurs in the
mitochondria.

8. What is the function of the Golgi apparatus?
A) DNA replication
B) Protein modification and sorting
C) ATP production
D) Lipid synthesis
Answer: B) Protein modification and sorting
Explanation: The Golgi apparatus modifies, sorts, and packages proteins for
secretion or use within the cell.

9. Which of the following is an example of an anabolic reaction?
A) Glycolysis
B) Protein synthesis
C) Fermentation
D) Glucose oxidation
Answer: B) Protein synthesis
Explanation: Anabolic reactions involve the building of complex molecules, such as
protein synthesis.

10. Which type of cell division results in four genetically distinct daughter cells?
A) Mitosis
B) Binary fission
C) Meiosis
D) Cytokinesis
Answer: C) Meiosis
Explanation: Meiosis results in four genetically distinct daughter cells, each with half
the number of chromosomes as the parent cell

11. What is the role of tRNA during translation?
A) To bring amino acids to the ribosome
B) To carry the genetic code from DNA
C) To form the structure of the ribosome
D) To initiate DNA replication
Answer: A) To bring amino acids to the ribosome
Explanation: tRNA (transfer RNA) brings amino acids to the ribosome, where they
are added to the growing polypeptide chain.

2

, Krok 1 Medical Examination

12. The main structural component of the cell membrane is:
A) Proteins
B) Carbohydrates
C) Phospholipids
D) Nucleic acids
Answer: C) Phospholipids
Explanation: The cell membrane is primarily composed of a phospholipid bilayer,
which forms a barrier between the cell and its environment.

13. Which of the following best describes osmosis?
A) Active transport of water
B) Passive diffusion of water
C) Active diffusion of solutes
D) Passive transport of solutes
Answer: B) Passive diffusion of water
Explanation: Osmosis is the passive diffusion of water across a semi-permeable
membrane.

14. Which molecule serves as the main energy currency of the cell?
A) Glucose
B) ATP
C) NADH
D) FADH2
Answer: B) ATP
Explanation: ATP (adenosine triphosphate) is the primary energy currency used by
cells for various biological processes.

15. Which phase of mitosis is characterized by the alignment of chromosomes along
the metaphase plate?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
Answer: B) Metaphase
Explanation: During metaphase, chromosomes align at the metaphase plate,
preparing for separation.

16. What is the function of lysosomes in a cell?
A) Protein synthesis
B) DNA replication
C) Digestion and waste removal
D) Energy production
Answer: C) Digestion and waste removal
Explanation: Lysosomes contain digestive enzymes that break down waste materials
and cellular debris.

17. Which of the following structures is found in plant cells but not in animal cells?
A) Mitochondria

3

, Krok 1 Medical Examination

B) Nucleus
C) Cell wall
D) Endoplasmic reticulum
Answer: C) Cell wall
Explanation: Plant cells have a cell wall made of cellulose that provides structural
support, which is absent in animal cells.

18. Which type of RNA forms the core of the ribosome's structure and catalyzes
protein synthesis?
A) mRNA
B) tRNA
C) rRNA
D) siRNA
Answer: C) rRNA
Explanation: Ribosomal RNA (rRNA) forms the structural and functional core of the
ribosome, facilitating protein synthesis.

19. Which of the following is a key difference between prokaryotic and eukaryotic
cells?
A) Presence of ribosomes
B) Presence of a cell membrane
C) Presence of membrane-bound organelles
D) Presence of DNA
Answer: C) Presence of membrane-bound organelles
Explanation: Eukaryotic cells have membrane-bound organelles, such as the nucleus
and mitochondria, which are absent in prokaryotic cells.

20. During which stage of meiosis do homologous chromosomes separate?
A) Prophase I
B) Metaphase I
C) Anaphase I
D) Telophase I
Answer: C) Anaphase I
Explanation: During Anaphase I of meiosis, homologous chromosomes are pulled to
opposite poles of the cell.

21. Which of the following processes involves the conversion of glucose into
pyruvate?
A) Glycolysis
B) Krebs cycle
C) Electron transport chain
D) Oxidative phosphorylation
Answer: A) Glycolysis
Explanation: Glycolysis is the process in which glucose is broken down into
pyruvate, producing a small amount of ATP.

22. Which enzyme is responsible for synthesizing RNA from a DNA template during
transcription?
A) DNA polymerase

4

Dit zijn jouw voordelen als je samenvattingen koopt bij Stuvia:

Bewezen kwaliteit door reviews

Studenten hebben al meer dan 850.000 samenvattingen beoordeeld. Zo weet jij zeker dat je de beste keuze maakt!

In een paar klikken geregeld

Geen gedoe — betaal gewoon eenmalig met iDeal, creditcard of je Stuvia-tegoed en je bent klaar. Geen abonnement nodig.

Direct to-the-point

Studenten maken samenvattingen voor studenten. Dat betekent: actuele inhoud waar jij écht wat aan hebt. Geen overbodige details!

Veelgestelde vragen

Wat krijg ik als ik dit document koop?

Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.

Tevredenheidsgarantie: hoe werkt dat?

Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.

Van wie koop ik deze samenvatting?

Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper nikhiljain22. Stuvia faciliteert de betaling aan de verkoper.

Zit ik meteen vast aan een abonnement?

Nee, je koopt alleen deze samenvatting voor €69,40. Je zit daarna nergens aan vast.

Is Stuvia te vertrouwen?

4,6 sterren op Google & Trustpilot (+1000 reviews)

Afgelopen 30 dagen zijn er 69252 samenvattingen verkocht

Opgericht in 2010, al 15 jaar dé plek om samenvattingen te kopen

Begin nu gratis

Tentamen (uitwerkingen)

Krok 1 Medicalination Practice Exam

Document informatie

Onderwerpen

Geschreven voor

Verkoper

Ontvangen beoordelingen

Voorbeeld van de inhoud