ATI TEAS 7
Anatomy
1. Which type of tissue is characterized by tightly packed cells with minimal extracellular matrix and provides structural support and protection?
- A. Epithelial tissue
- B. Connective tissue
- C. Muscle tissue
- D. Nervous tissue
Correct answer: B
Rationale: The correct answer is B: Connective tissue. Connective tissue is characterized by tightly packed cells with minimal extracellular matrix, which provides structural support and protection. Epithelial tissue, while also tightly packed, is specialized for lining and covering surfaces. Muscle tissue is composed of cells with contractile properties for movement, and nervous tissue is made up of neurons for transmitting electrical signals. Therefore, connective tissue best fits the description of being densely packed with cells and serving a structural support and protective function.
2. What is the relationship between mass and inertia?
- A. Mass is a measure of inertia
- B. Mass has no relation to inertia
- C. Inertia is a measure of weight
- D. Inertia increases with decreasing mass
Correct answer: a
Rationale: Mass is a measure of the amount of matter in an object and is directly related to its inertia.
3. A ball is rolling across the floor and comes to a stop on its own. What force caused the ball to stop?
- A. Gravitational force
- B. Normal force from the floor
- C. Air resistance
- D. None of the above
Correct answer: C
Rationale: In the absence of other forces, air resistance will gradually slow down the ball until it stops.
4. Which of the following numbers is a perfect square?
- A. 10
- B. 12
- C. 15
- D. 16
Correct answer: D
Rationale: A perfect square is a number obtained by squaring an integer. 16 is the result of squaring 4 (4 x 4 = 16). The other answer choices are not the product of squaring any whole number.
5. Which organelle is responsible for carrying out photosynthesis in plant cells?
- A. Golgi apparatus
- B. Mitochondria
- C. Chloroplasts
- D. Lysosomes
Correct answer: C
Rationale: Rationale: A) Golgi apparatus: The Golgi apparatus is responsible for modifying, sorting, and packaging proteins for secretion or for use within the cell. It is not involved in photosynthesis. B) Mitochondria: Mitochondria are known as the powerhouse of the cell and are responsible for generating energy in the form of ATP through cellular respiration. They are not involved in photosynthesis. C) Chloroplasts: Chloroplasts are the organelles responsible for carrying out photosynthesis in plant cells. They contain chlorophyll, a pigment that captures light energy and converts it into chemical energy in the form of glucose. D) Lysosomes: Lysosomes are membrane-bound organelles that contain digestive enzymes to break down waste materials and cellular debris. They are not involved in photosynthesis. Therefore, the correct answer is C) Chloroplasts, as they are specifically responsible for carrying out photosynthesis in plant
6. Bile, a yellowish-green fluid, is stored in the gallbladder and released into the small intestine during digestion. What is the primary function of bile in digestion?
- A. Break down carbohydrates
- B. Break down proteins
- C. Emulsify fats
- D. Neutralize stomach acid
Correct answer: C
Rationale: The primary function of bile in digestion is to emulsify fats. Bile contains bile salts that help break down large fat globules into smaller droplets, which increases the surface area for enzymes to work on and aids in the absorption of fats in the small intestine. This process is essential for the digestion and absorption of dietary fats. Bile does not directly break down carbohydrates or proteins, and it is not involved in neutralizing stomach acid, making option C the correct answer.
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