Videos
The cell theory states that
- a. all living things are composed of cells.
- b. cells are the smallest units of living organisms.
- c. new cells come from pre-existing cells by cell division.
- d. all of the above.
- e. only a and b are true.
Introduction: Cell theory was given by Schleiden and Schwann along with a contribution from Virchow. Organisms existing in nature can either be unicellular or multicellular. Organisms made up of prokaryotic cells are called prokaryotic organisms and organisms made up of eukaryotic cells are called eukaryotic organisms.
Answer to Problem 1TY
Correct answer: Cell theory states that all living things are composed of cells. Cells are the smallest units of living organisms, and new cells arise from pre-existing cells through cell division. Hence, the correct answer is option d.
Explanation of Solution
Reason for correct answer:
The three parts of cell theory are as follows:
- Cells give rise to all living organisms.
- The smallest units of life for all living organisms are cells.
- Pre-existing cells divide to give rise to new cells with the help of cell division.
Option d. is given as “all of the above”.
According to the cell theory, the smallest units of living organisms are cells. All living things are composed of cells and pre-existing cells give rise to a new cell after undergoing cell division. Hence, the correct answer is option d.
Reasons for incorrect answer:
Option a. is given as, “all living things are composed of cells”.
Cell theory states that “all living organisms are composed of cells”. However, it also states that the smallest units of life are cells and new cells are formed when pre-existing cells undergo cell division. Hence, option a. is incorrect.
Option b. is given as, “cells are the smallest units of living organisms”.
Cell theory states that “cells are the smallest units of living organisms”. However, it also states that cells are the basic unit of all living organisms, and cell division gives rise to new cells from pre-existing cells. Hence, option b. is incorrect.
Option c. is given as, “new cells come from pre-existing cells by cell division”.
Cell theory states that the pre-existing cells give rise to new cells after undergoing cell division. However, it also states that cells are the smallest units of life and they give rise to all living organisms. Hence, option c. is incorrect.
Option e. is given as, “only a and b are true”.
Schleiden and Schwann postulated that cells give rise to all living organisms and are the smallest units of life. However, the contributions of Virchow who said that new cells arise from pre-existing cells through cell division is also added to the cell theory. Hence, option e. is incorrect.
Hence, the options a., b., c., and e. are incorrect.
Thus, according to the cell theory, cells are the smallest units of living organisms, all living organisms are made of cells, and pre-existing cells divide to form new cells.
Want to see more full solutions like this?
Chapter 4 Solutions
BIOLOGY
Additional Science Textbook Solutions
Laboratory Manual For Human Anatomy & Physiology
General, Organic, and Biological Chemistry: Structures of Life (5th Edition)
Biology: Life on Earth with Physiology (11th Edition)
SEELEY'S ANATOMY+PHYSIOLOGY
Microbiology Fundamentals: A Clinical Approach
Human Physiology: An Integrated Approach (8th Edition)
- P 200 150- 100 50 w/instrance/ w/insurance 2 100 Demand Assume that the white curve (labeled "Demand") represents an individual's true demand for this particular health care service. The coinsurance associated with insurance option 1 (in blue) is likely _. 0000 100% 25% 50% 0%arrow_forwardUse the figure below. Bob and Nancy have the same income and total utility.. willingness to pay for an insurance premium will be lower than because they are. risk- averse. Total utility Current utility Bob's utility Nancy's utility 0000 Bob; Nancy; less Nancy; Bob; less Nancy; Bob; more Bob; Nancy; more Current Income incomearrow_forwardConsider the figure below. Suppose the true price of a health care service is P1. Suppose further that the individual has obtained insurance that has a fixed copayment for this particular service. The copayment is represented by price P2. represents the quantity of the service the individual would consume without insurance. quantity of the service the individual would consume with the insurance. Health Care Service represents the P. P₂ a Q1;Q2 Q2; Q3 Q1; Q3 Q3; Q1 Q2; Q1 फ f Q ८ g d h Q3\D 7Q 00000arrow_forward
- The table shows the utility Jordan receives at various income levels, but they do not know what their income will be next year. There is a 15% chance their income will be $25,000, a 20% chance their income will be $35,000, and a 65% chance their income will be $45,000. We know that Jordan is Income $25,000 Utility 2,800 30,000 3,200 35,000 3,500 40,000 3,700 45,000 3,800 ☐ none of the above 0 000 risk taker (lover) because their marginal utility of income is increasing risk neutral because their marginal utility of income is constant risk averse because their marginal utility of income is decreasing risk neutral because their marginal utility of income is decreasingarrow_forwardOOOO a d+e d a+b+c Consider the figure below. Suppose the true price of a health care service is P1. Suppose further that the individual has obtained insurance that has a fixed copayment for this particular service. The copayment is represented by price P2. The social loss from moral hazard if the individual has copayment P2 is represented graphically by the area(s): Health Care Service P. a No 4 ८ e g Q2 Q3 Darrow_forwardOOO O The table shows the utility Jordan receives at various income levels, but they do not know what their income will be next year. There is a 15% chance their income will be $25,000, a 20% chance their income will be $35,000, and a 65% chance their income will be $45,000. We know that Jordan's expected income is. Their utility from their expected income is_ Income $25,000 Utility 2,800 30,000 3,200 35,000 3,500 40,000 3,700 45,000 3,800 $45,000; 3,800 $40,000; 3,700 $25,000; 2,800 $35,000; 3,500 $30,000; 3,200arrow_forward
- Question 1 Classify the Bird Mark 7; how is it: Powered Triggered Cycled Classify brid mark 7 Powered: By gas (oxygen) Triggered: Negative Pressure, caused by the patient’s inspiratory effort Cycled: The machine stops delivering gas and allows for exhalationarrow_forwardHypothetical "pedigree" for Sickle Cellarrow_forwardwould this be considered a novel protein and if not how can I fix it so it is and can you draw the corrections pleasearrow_forward
- In as much detail as possible, hand draw a schematic diagram of the hypothalamic-pituitary- gonad (HPG) axis in the human male. Be sure to include all the relevant structures and hormones. You must define all abbreviations the first time you use them. Please include (and explain) the feedback loops.arrow_forwardA negligence action was brought by a mother against a hospital on behalf of her minor daughter. It alleged that when the mother was 13 years of age, the hospital negligently transfused her with Rh-positive blood. The mother's Rh-negative blood was incompatible with and sensitized by the Rh-positive blood. The mother discovered her condition 8 years later during a routine blood screening ordered by her healthcare provider in the course of prenatal care. The resulting sensitization of the mother's blood allegedly caused damage to the fetus, resulting in physical defects and premature birth. Did a patient relationship with the transfusing hospital exist?arrow_forward18. Watch this short youtube video about SARS CoV-2 replication. SARS-CoV-2 Life Cycle (Summer 2020) - YouTube.19. What is the name of the receptor that SARS CoV-2 uses to enter cells? Which human cells express this receptor? 20. Name a few of the proteins that the SARS CoV-2 mRNA codes for. 21. What is the role of the golgi apparatus related to SARS CoV-2arrow_forward
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College