BIOL 1000 Lecture Notes - Lecture 9: Desert Iguana, Olive Oil, Saturated Fat

45 views20 pages

mauveoyster174

6 Dec 2014

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Chapter 5: 1, 3- 10. Chapter 7: 1- 3, 5- 7, 10. Which of the following best describes the 2 fahy acids in the following image. True or false: plant membrane contains cholesterol. Visualize a bohle of olive oil and a s,ck of buher at room temperature. A yeast cell experiences an increase in temperature. Increased levels of saturated fat. Increased levels of unsaturated fats. I don"t know. will move . If the solute concentra,on is higher outside a cell than inside a cell, water. Water doesn"t cross the membrane. My brain hurts: i have no idea!!! The inside of a cell has a high solute concentra,on rela,ve to the surrounding solu,on. When a signal molecule binds its receptor. It causes the cell to secrete a second messenger. The receptor moves into the cell and becomes a second messenger. I don"t know. pathway is . Presence of a signaling molecule in the extracellular space.

Related Questions

1. The histones that form the core of the nucleosome get into the nucleus by which of the following?

a) Passive diffusion through nuclear pores

b) Selective and facilitated active transport through nuclear pores

c) Ribosomes located in the nucleus synthetize histones in the nucleus

d) Histones are made at the ER membrane and then diffuse to the nucleus

2. Membrane proteins that belong to the golgi, lysosome, or plasma membrane first pass through which organelle before reaching their final subcellular destination?

a) The golgi apparatus

b) The smooth ER

c) The nucleus

d) The ER membrane

e) The ER lumen

3. Where in the cell would a ribosomal protein be located if it has had its nuclear export signal inactivated (non-functional or non-existent).

a) The protein would be found in the ER lumen

b) The protein would remain in the nucleus

c) The protein would be secreted

d) The protein would remain in the cytoplasm

e) The protein would be in the ER membrane

4. Where would be the final destination of a protein if it contained a NLS anywhere in the protein sequence (and which is exposed to the cytoplasm after protein folding) but also contained an ER signal sequence at the carboxy terminus?

a) The ER lumen

b) The nucleus

c) The cytoplasm

d) The inner nuclear membrane

e) The ER membrane

5. The sequence K-D-E-L serves as a retention/retrieval signal for ER proteins.

a) True

b) False

6. The following are true for both cell membrane proteins and secretory proteins EXCEPT?

a) Precursors of the mature proteins contain signal sequence.

b) Both types of proteins contain stop-transfer sequences

c) Both types of proteins enter the ER while being synthetized

d) Both types of proteins pas through the golgi apparatus

e) Both are carried by clatherin-coated vesicles

7. If you isolate a regulated secreted protein from a secretory/storage vesicle and inject it into the cytosol, is will?

a) Be secreted through channels in the plasma membrane

b) Be taken up into secretory vesicle and secreted

c) Remain in the cytosol until it is degraded

d) Be taken up into the rough ER and follow the secretory pathway

goldmanatee250

1. Which of the following best describes a condition where a membrane separates two solutions that are NOT in equilibrium?

a rainbow

B	equilibrium

C	a homogeneous solution

D	neighboring solutions that have unequal concentrations of molecules

2. In this lab, we will use dialysis tubing to....

A	simulate biological membranes

B	separate blood from urine

C	turn starch blue

D	turn starch brown

3. Biological membranes have different types of pores and channels, and different permeability to small molecules depending on size and charge. In this lab, you can assume that the dialysis tubing we are using are permeable to....

starch

B	water and potassium iodide

C	complex sugars

D	small animals

4. Kinetic energy is a property of the atom, and also of more complex structures such as molecules. You can actually see kinetic energy of non-living things in action under the microscope. When we visualize this, we call what we see...

diffusion

B	Brownian motion

osmosis

D	all of the above

5. One word to describe the effect of water diffusion across a membrane, which alters the water pressure on one side of the membrane with respect to the other is....

osmosis

lysis

aquaporin

D	equilibrium

6. Suppose that you place a red blood cell in a hypertonic solution containing penetrating molecules. In this environment, you would expect the cell to eventually

A	swell and burst

shrink

C	remain the same in size

D	photosynthesize

7. For the "egg lab", what is the main objective?

A	to determine which egg has more mass

B	to determine which egg is hypertonic to the other

C	to determine which solution the egg is placed in is hyper- or hypo-tonic solution

D	to determine which egg is isotonic with the egg

8. The main difference between a 'prediction' and a 'hypothesis', is that predictions....

A	are framed as an "if...then...because" statement

B	are framed as a general statement

C	are framed as an "always....true" statement

D	are framed as an "correct....incorrect" statement

9. Read each of the following procedural steps for plasmolyzing Elodea sprig and then select the correct order below.

Locate a region of healthy cells and sketch a few adjacent cells

Sketch the plasmolyzed cell

While touching one corner of the coverslip with a piece of Kimwipe to draw off the
water, add a drop of concentrated salt solution to the opposite corner

Obtain a leaf from an Elodea or Water sprite plant

A	4, 2, 3, 1

B	3, 1, 4, 2

C	2, 3, 1, 4

D	4, 1, 3, 2

QUESTION 1 1. The relative importance or burden of a disease within a population will depend on a number of factors including : A. Disease frequency B. Disease severity C. Disease consequences D. All of the above

QUESTION 2 1 . With the epidemiologic transition, there is a reduction in malnutrition and _____ . A. Communicable diseases B. Injuries C. Non-communicable chronic diseases D. Mental health disorders

QUESTION 3 1. A major challenge to developing a burden of disease profile in low and middle-income countries relates to A. Unwillingness to share complete information B. Conflicting disease definitions C. Challenges obtaining information related to cause of death D. All of the above

QUESTION 4 1. The demographic transition describes which of the following changes to society A. Changes in birth and death rates that reflect a modern society B. Declines in mortality followed by a reduction in fertility C. A change in the age structure of the population D. All of the above

QUESTION 5 1. Measures of health status that combine mortality and morbidity data A. Facilitate comparisons both within and across populations B. Help estimate the quantitative health benefits from interventions C. Serve as tools to assist with resource allocation D. All of the above

QUESTION 6 1. The disability-adjusted life year is defined as A. A health gap population summary measure that combines time lost due to disability with that lost due to death B. A measure to compare the gap between the current situation to that of an ideal situation C. A measure that combines the amount of healthy life lost due to morbidity with that lost due to injury. D. Answers B and C

QUESTION 7 1. True or false? A key limitation to mortality-based indicators is that they fail to account for the morbidity caused by disease. True False

QUESTION 8 1. The most widely used composite measure of population health is the DALY, and this epidemiological measure is the sum of morbidity and ________data. A. Years of life lost (YLL) B. Morbidity C. Infant mortality rates (IMR) D. none of the above

QUESTION 9 1. What would be the best source of information on adult and infant mortality (in high income countries)? A. Disease registers B. Vital statistics C. Special survey study D. Hospital clinic statistics

QUESTION 10 1. Which term is best used to describe the proportion of people in a population who have a defined disease at a specific point of time? A. DALY B. Incidence C. Mortality rate D. Prevalence

QUESTION 11 1. Which term is best used to describe new cases of disease occurring in a population? A. DALY B. Incidence C. Mortality rate D. Prevalence

QUESTION 12 1. Which term is used to describe the absence or presence of illness or disease? A. Demography B. Morbidity C. Mortality D. Vitality

QUESTION 13 1. Mortality (death indicators) include: A. Mortality rate B. Infant mortality rate C. Neonatal morality rate D. All of the above

QUESTION 14 1. True or false? The value of life is often implicit in the way resource allocation decisions are made, which suggests that these decisions should be as explicit, open, and transparent as possible. True False

QUESTION 15 1. _________________is projected as the number one leading cause of disease burden in 2030. A. Ischemic heart disease B. Diabetes mellitus C. HIV/AIDS D. Unipolar depression

QUESTION 16 1. Some of the negative aspects of globalization include A. Greater insecurity of employment B. Poorer housing and sanitation due to rapid urbanization C. Greater vulnerability to environmental degradation D. All of the above

QUESTION 17 1. Current concerns about climate change focus on several developments including A. Rising global average land and sea surface temperature B. Increasing frequency of extreme weather conditions C. Both A and B D. None of the above

QUESTION 18 1. True or false? Diseases carried by mosquitoes are especially sensitive to meteorological conditions because they are vulnerable to changes in the ambient temperature. As a result of changing temperatures, infectious diseases such as malaria and dengue have decreased in incidence and geographic range. True False

QUESTION 19 1. True or false? International cooperation of infectious disease control has a long history that includes obligatory reporting of outbreaks of specific diseases. However, compliance with obligatory reporting has been poor due to economic consequences that have often accompanied notification of disease outbreaks. True False

QUESTION 20 1. True or false? Globalization is a relatively new phenomenon that began in the mid-20th century. True False

BIOL 1000 Lecture Notes - Lecture 9: Desert Iguana, Olive Oil, Saturated Fat

Document Summary

Get access

Related Documents

BIOL 1000 Lecture Notes - Lecture 5: Extracellular Matrix, Ethanolamine, Clathrin

BIOL 1000 Study Guide - Final Guide: Thermostat, Hemolysis, Aldosterone

BIOL 1000 Chapter Notes - Chapter 5: Cystic Fibrosis, Lipid Bilayer, Membrane Fluidity

Related Questions