QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
27. (BL1) A discrete unit of inheritance is known as
a. a can
b. An Element
c. A Nucleoside
d. A Nucleoside
e. A gene
28. (BL2) Calorie restriction shows that it is possible to age more slowly with less disease. This was demonstrated in an
a. Giraffes
b. House cats
c. Rhesus monkeys
d. Rabbits
e. Fish
29. (BL2) DNA is characterized by
a. A sugar phosphate backbone
b. Antiparallel strands
c. Complementary base pairs
d. All of the above
e. None of the above
30. (BL2) In DNA, complementary base pairs are held to each other by
a. Covalent bonds
b. Hydrogen bonds
c. Ionic bonds
d. Double bonds
e. Single bonds
31. (BL2) What does the term insoluble fiber refer to on food packages?
a. Cellulose
b. Polypeptides
c. Starch
d. Amylopectin
e. Chitin
32. (BL2) How do phospholipids interact with water molecules?
a. The polar heads avoid water
b. Phospholipids do not interact with water
c. The polar heads interact with water
d. Phospholipids dissolve in water
e. None of the above
33. (BL2) Which of the following is the best explanation for why vegetable oil is a liquid at room temperature when
animal fats are solid?
a. Vegetable oil has more double bonds than animal fats.
b. Vegetable oil has fewer double bonds than animal fats.
c. Animal fats have no amphipathic character.
d. Vegetable oil has longer fatty-acid tails than animal fats.
e. Vegetable oil has shorter fatty-acid tails than animal fats.
Attachments
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1I'll solve these multiple-choice biology questions with detailed explanations:
Step 2(BL1) A discrete unit of inheritance is known as
Final Answer
A gene Explanation: A gene is the fundamental unit of heredity, representing a specific segment of DNA that codes for a particular trait or function. 28. (BL2) Calorie restriction shows that it is possible to age more slowly with less disease. This was demonstrated in an Rhesus monkeys Explanation: Long-term studies on rhesus monkeys have shown that calorie restriction can slow aging processes and reduce age-related diseases. 29. (BL2) DNA is characterized by All of the above Explanation: DNA has three key characteristics: - A sugar phosphate backbone - Antiparallel strands (running in opposite directions) - Complementary base pairs (A-T, C-G) 30. (BL2) In DNA, complementary base pairs are held to each other by Hydrogen bonds Explanation: Complementary base pairs (A-T, C-G) are connected by weak hydrogen bonds, which allow for easy separation during DNA replication. 31. (BL2) What does the term insoluble fiber refer to on food packages? Cellulose Explanation: Insoluble fiber is primarily composed of cellulose, a complex carbohydrate found in plant cell walls that cannot be digested by humans. 32. (BL2) How do phospholipids interact with water molecules? The polar heads interact with water Explanation: Phospholipids have a hydrophilic (water-loving) polar head and hydrophobic (water-avoiding) fatty acid tails, allowing the heads to interact with water. 33. (BL2) Which of the following is the best explanation for why vegetable oil is a liquid at room temperature when animal fats are solid? Vegetable oil has more double bonds than animal fats Explanation: More double bonds in fatty acid chains create kinks that prevent tight packing, keeping vegetable oils liquid at room temperature, while animal fats with fewer double bonds can solidify.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students