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Questions and Answers

What is the primary function of ribosomes in a eukaryotic cell?

  • Protein synthesis (correct)
  • Energy production
  • DNA replication
  • Cell division

During which phase of mitosis do sister chromatids separate and move towards opposite poles of the cell?

  • Telophase
  • Anaphase (correct)
  • Metaphase
  • Prophase

Which type of blood vessel primarily carries oxygenated blood away from the heart?

  • Venules
  • Arteries (correct)
  • Veins
  • Capillaries

What is the primary role of alveoli in the respiratory system?

<p>Gas exchange (B)</p> Signup and view all the answers

What are the main components of the Central Nervous System?

<p>Brain and spinal cord (B)</p> Signup and view all the answers

Which process in digestion involves the smooth muscle contractions that move food through the digestive tract?

<p>Peristalsis (D)</p> Signup and view all the answers

What is the role of the pancreas in the digestive system?

<p>Producing digestive enzymes (C)</p> Signup and view all the answers

What are stomata primarily responsible for in plants?

<p>Gas exchange (A)</p> Signup and view all the answers

What is a key difference between prokaryotic and eukaryotic cells?

<p>Prokaryotic cells are typically smaller than eukaryotic cells. (A)</p> Signup and view all the answers

What are the main components of the Peripheral Nervous System?

<p>Sensory and motor nerves. (A)</p> Signup and view all the answers

Which phase of mitosis involves the alignment of chromosomes at the cell's equator?

<p>Metaphase. (D)</p> Signup and view all the answers

What role do xylem and phloem serve in plants?

<p>Transport of water/minerals and sugars. (A)</p> Signup and view all the answers

What event occurs in the respiratory system during the action of inhalation?

<p>The intercostal muscles contract, expanding the chest cavity. (B)</p> Signup and view all the answers

Which of the following best describes cancerous cells?

<p>They ignore normal regulatory growth signals. (B)</p> Signup and view all the answers

What are the two main types of digestion in the digestive process?

<p>Mechanical and chemical digestion. (C)</p> Signup and view all the answers

What is the function of the sinoatrial (SA) node in the heart?

<p>It serves as the heart's natural pacemaker. (C)</p> Signup and view all the answers

Flashcards

Prokaryotic vs. Eukaryotic cells

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have both.

Plant vs. Animal Cells

Plant cells have a cell wall, chloroplasts, and a large central vacuole; animal cells do not.

Mitosis stages

Mitosis stages are Prophase, Metaphase, Anaphase, Telophase. These are a part of cell division for growth and repair.

Cancerous cell difference

Cancerous cells divide uncontrollably, unlike regular cells that divide in a controlled manner.

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Arteries, Veins, Capillaries

Arteries carry blood away from the heart, veins carry blood to the heart, and capillaries facilitate exchange between blood and tissues.

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Respiratory system function

The respiratory system facilitates gas exchange (oxygen and carbon dioxide) between the air and the blood.

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Digestive system types of digestion

Mechanical digestion breaks down food physically, and chemical digestion breaks down food chemically.

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Stomata function

Stomata are tiny pores on the surface of leaves that allow for gas exchange (carbon dioxide in, oxygen out) and transpiration.

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What is the function of the nucleus?

The nucleus is the control center of the cell. It contains the cell's DNA, which carries the genetic instructions for the cell's activities.

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What is the function of the mitochondria?

Mitochondria are the powerhouses of the cell. They are responsible for generating energy (ATP) through cellular respiration.

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What is the function of the chloroplast?

Chloroplasts are found in plant cells. They are the sites of photosynthesis, where sunlight is converted into chemical energy (sugars).

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What is the function of the cell wall?

The cell wall is a rigid outer layer found in plant cells. It provides structural support and protection.

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What happens during Prophase?

During Prophase, the chromosomes condense and become visible. The nuclear envelope breaks down, and the mitotic spindle begins to form.

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What happens during Metaphase?

During Metaphase, the chromosomes line up at the center of the cell, attached to the spindle fibers from opposite poles.

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What happens during Anaphase?

During Anaphase, the sister chromatids separate and move to opposite poles of the cell.

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What happens during Telophase?

During Telophase, the chromosomes reach the opposite poles of the cell, the nuclear envelope reforms around each set of chromosomes, and the cytoplasm divides, resulting in two daughter cells.

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Study Notes

Cells and Organelles

  • Differences between prokaryotic and eukaryotic cells
  • Differences between plant and animal cells
  • Function of organelles
  • What are stem cells?
  • Structural hierarchy: Cells > Tissues > Organs > Organ Systems > Organism

Mitosis and Cell Division

  • Recognize the stages of mitosis (interphase, prophase, metaphase, anaphase, telophase)
  • Important events at each stage
  • What is cancer? What is wrong with cancerous cells?

Circulatory System

  • Differences between arteries, veins, and capillaries (direction of blood flow, vessel structure)
  • Two circuits of circulation (oxygenated/deoxygenated blood in each)
  • Heart's control (sinoatrial (SA) node)

Nervous System

  • Central Nervous System components
  • Peripheral Nervous System components
  • Autonomic Nervous System
  • Function of sympathetic and parasympathetic nervous system responses

Respiratory System

  • Label respiratory structures: mouth, trachea, bronchus, bronchi, bronchioles
  • Function of the nose in respiration

Digestive System

  • Two types of digestion and where they occur
  • Peristalsis
  • Stomach acid
  • Pancreas function
  • Villi (location and role in digestion)
  • Large intestine function
  • Diffusion in the digestive system

Plants

  • Important structures and functions in plants
  • Xylem and phloem
  • Stomata
  • Plant energy creation location

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Description

This quiz covers essential topics in biology including cell structures, mitosis, the circulatory system, the nervous system, and the respiratory system. Test your understanding of the differences between cell types, the stages of cell division, and the functions of various organ systems. Ideal for students preparing for biology exams.

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