ATI TEAS 7
Biology
1. Which of these organisms belongs to the kingdom Protista?
- A. Coral
- B. Yeast
- C. Euglena
- D. Mushroom
Correct answer: C
Rationale: Rationale: A) Coral belongs to the kingdom Animalia, specifically in the phylum Cnidaria. B) Yeast belongs to the kingdom Fungi. C) Euglena is a unicellular organism that belongs to the kingdom Protista. It is a type of protist that has characteristics of both plants and animals. D) Mushroom belongs to the kingdom Fungi. Therefore, among the options provided, only Euglena belongs to the kingdom Protista.
2. Which of these organs is NOT involved in the production of digestive enzymes?
- A. Mouth
- B. Stomach
- C. Pancreas
- D. Small intestine
Correct answer: A
Rationale: Rationale: A) Mouth: The mouth is involved in the mechanical breakdown of food through chewing and the initiation of carbohydrate digestion by the enzyme amylase in saliva, but it does not produce digestive enzymes. B) Stomach: The stomach produces gastric juices containing enzymes like pepsin that help break down proteins. C) Pancreas: The pancreas produces various digestive enzymes such as amylase, lipase, and proteases that aid in the digestion of carbohydrates, fats, and proteins. D) Small intestine: The small intestine produces enzymes such as peptidases, sucrase, lactase, and maltase that further break down proteins, carbohydrates, and fats for absorption. Therefore, the mouth is the organ that is NOT involved in the production of digestive enzymes.
3. What is the coefficient of oxygen in the balanced chemical equation for the combustion of methane (CH4)?
- A. 1
- B. 2
- C. 3
- D. 4
Correct answer: b
Rationale: The balanced equation is CH4 + 2O2 → CO2 + 2H2O, so the coefficient of oxygen is 2.
4. Which of the following hormones helps regulate blood pressure by affecting kidney function?
- A. Insulin
- B. Testosterone
- C. Renin
- D. Estrogen
Correct answer: C
Rationale: The correct answer is C: Renin. Renin is an enzyme produced by the kidneys that plays a crucial role in regulating blood pressure. Renin helps control blood pressure by initiating a series of reactions that ultimately lead to the production of angiotensin, a hormone that constricts blood vessels and increases blood pressure. Insulin is a hormone that regulates blood sugar levels, not blood pressure. Testosterone and estrogen are sex hormones that do not have a direct impact on kidney function or blood pressure regulation. Therefore, the correct hormone that helps regulate blood pressure by affecting kidney function is Renin.
5. Which of the following is a characteristic of unsaturated fatty acids?
- A. They are solid at room temperature.
- B. They contain only single bonds.
- C. They have a higher melting point.
- D. They contain double or triple bonds.
Correct answer: D
Rationale: Unsaturated fatty acids contain double or triple bonds in their hydrocarbon chains. The other choices do not accurately describe unsaturated fatty acids.
6. What property of matter determines its resistance to changes in shape or size?
- A. Solid
- B. Liquid
- C. Gas
- D. Plasma
Correct answer: B
Rationale: Liquids have a definite volume but can take the shape of their container, unlike solids with fixed shapes and volumes.
Similar Questions
Access More Features
ATI TEAS Premium Plus
$149.99/ 90 days
- Actual ATI TEAS 7 Questions
- 3,000 questions with answers
- 90 days access
ATI TEAS Basic
$49/ 30 days
- 3,000 Questions with answers
- 30 days access