Cell Biology

Describe the following: membrane, chloroplast, mitochondria, nucleus, transport, respiration and fermentation.

Describe the following: membrane, chloroplast, mitochondria, nucleus, transport, respiration and fermentation.

ASAP. for FINALS!!!
(i can use a note card, thank you very much)

!JRon@n   698   3 Replies

bugbugs4

Proteins are made on the

Proteins are made on the

A) Mitochondria B) Ribosomes C) Nucleus D)plasma membrane

!JRon@n   1485   8 Replies

juliar33

Do mitochondria have 2 nucleus?

Do mitochondria have 2 nucleus?

Do they?

!JRon@n   1384   2 Replies

mike5411

Glycolysis occurs in the _______ of the cell. A] nucleus B]mitochondria C]cytoplasm D]chloroplast?

Glycolysis occurs in the _______ of the cell. A] nucleus B]mitochondria C]cytoplasm D]chloroplast?

Glycolysis occurs in the _______ of the cell. A] nucleus B]mitochondria C]cytoplasm D]chloroplast?

!JRon@n   2984   1 Reply

lgould

What would happen if a bacteriophage entered the human body?

What would happen if a bacteriophage entered the human body?

Since bacteriophages attack only bacteria. Bacteria can enter the human body, and there are bacteria living in the human body, so what would happen if bacteriophages were to reproduce within the bacteria inside of us? Does anyone know if it's happene

!JRon@n   539   2 Replies

tomcnulty

Is a virus considered to be alive?

Is a virus considered to be alive?

Quote your sources...

$abood$   992   6 Replies

tommy12

is soma addictive and does it effect gaba?

is soma addictive and does it effect gaba?

Im thinking of buying some soma but I need to know a few things.

1. Is it physically addictive and if so how long does the withdrawal last?
2. Does it affect GABA?

thanks

$abood$   372   2 Replies

o.avworo

Cocaine and amphetamines increase the production of which neurotransmitters?

Cocaine and amphetamines increase the production of which neurotransmitters?

Cocaine and amphetamines increase the production of which neurotransmitters?
A) GABA and endorphins
B) norepinephrine and dopamine
C) acetylcholine and endorphins
D) acetylcholine and GABA

$abood$   2552   1 Reply

nyuboy1

is pancreas a receptor for glucose regulation or a corrective organ?

is pancreas a receptor for glucose regulation or a corrective organ?

glucose regulation as an example of homeostasis.it is an example of negative feed back.so what is the receptor in this case?

(catalina)   256   2 Replies

ilikebigbutts

Which of the following is NOT a basic process of the gastrointestinal system?

Which of the following is NOT a basic process of the gastrointestinal system?

Which of the following is NOT a basic process of the gastrointestinal system?
A) digestion
B) absorption
C) motility
D) filtration
E) secretion

...hello   270   2 Replies

Nikhil verma

Which of the following is the correct order of the layers of the gastrointestinal tract wall, from l

Which of the following is the correct order of the layers of the gastrointestinal tract wall, from l

Which of the following is the correct order of the layers of the gastrointestinal tract wall, from lumen to external surface?
A) serosa, mucosa, submucosa, muscularis externa
B) submucosa, mucosa, serosa, muscularis externa
C) mucosa,

...hello   211   1 Reply

venusky

Which of the following correctly lists the three portions of the mucosa?

Which of the following correctly lists the three portions of the mucosa?

Which of the following correctly lists the three portions of the mucosa?
A) muscularis mucosae, mucous membrane, submucosa
B) adventitia, lamina propria, muscularis externa
C) adventitia, muscularis externa, mucous membrane
D) muc

...hello   180   1 Reply

venusky

Enterocytes of the mucous membrane of the mucosal layer are classified as ________ cells if they sec

Enterocytes of the mucous membrane of the mucosal layer are classified as ________ cells if they sec

Enterocytes of the mucous membrane of the mucosal layer are classified as ________ cells if they secrete fluids and enzymes into the lumen and ________ cells if they release hormones into the bloodstream.
A) exocrine : endocrine
B) exocrin

...hello   224   1 Reply

venusky

What layer of the mucosa is connective tissue that contains blood vessels and lymphatic vessels?

What layer of the mucosa is connective tissue that contains blood vessels and lymphatic vessels?

What layer of the mucosa is connective tissue that contains blood vessels and lymphatic vessels?
A) lamina propria
B) serosa
C) muscularis mucosae
D) submucosal plexus
E) mucous membrane

...hello   252   1 Reply

venusky

What is the thin layer of smooth muscle cells whose contraction stirs the lumenal contents and promo

What is the thin layer of smooth muscle cells whose contraction stirs the lumenal contents and promo

What is the thin layer of smooth muscle cells whose contraction stirs the lumenal contents and promotes contact with the mucosal membrane?
A) muscularis internae
B) muscularis mucosae
C) serosa
D) myenteric plexus
E) muscular

...hello   164   1 Reply

venusky

What layer of the gastrointestinal wall is a thick layer of connective tissue that provides the gast

What layer of the gastrointestinal wall is a thick layer of connective tissue that provides the gast

What layer of the gastrointestinal wall is a thick layer of connective tissue that provides the gastrointestinal tract with much of its elasticity and distensibility?
A) serosa
B) lamina propria
C) submucosa
D) mesentery
E) p

...hello   200   1 Reply

venusky

The enteric nervous system receives its inputs from

The enteric nervous system receives its inputs from

The enteric nervous system receives its inputs from
A) autonomic neurons only.
B) somatic motor neurons only.
C) sensory neurons in the wall of the gastrointestinal tract only.
D) both autonomic neurons and sensory neurons in the

...hello   196   1 Reply

venusky

The muscularis externa contains which of the following muscle groups?

The muscularis externa contains which of the following muscle groups?

The muscularis externa contains which of the following muscle groups?
A) an outer longitudinal layer that requires neural input for contraction
B) a muscularis mucosae, which lubricates as it contracts
C) an inner circular layer capabl

...hello   199   1 Reply

venusky

Where do slow-wave potentials occur?

Where do slow-wave potentials occur?

Where do slow-wave potentials occur?
A) myenteric plexus
B) muscularis mucosae
C) submucosal plexus
D) inner circular muscle layer of the muscularis externa
E) outer longitudinal muscle layer of the muscularis externa

...hello   172   1 Reply

venusky

The ________ is a layer of epithelial cells on the outer side of the serosa that secretes a watery l

The ________ is a layer of epithelial cells on the outer side of the serosa that secretes a watery l

The ________ is a layer of epithelial cells on the outer side of the serosa that secretes a watery lubricating fluid that makes it easier for organs to slide past one another.
A) mesentery
B) endothelium
C) mesothelium
D) submucos

...hello   164   1 Reply

venusky

What membrane lines the abdominal cavity?

What membrane lines the abdominal cavity?

What membrane lines the abdominal cavity?
A) serosa
B) peritoneum
C) mesenteries
D) adventitia
E) mesothelium

...hello   178   1 Reply

venusky

What is the technical word for chewing?

What is the technical word for chewing?

What is the technical word for chewing?
A) segmentation
B) haustration
C) mastication
D) micturition
E) accommodation

...hello   273   3 Replies

venusky

As the food is broken into smaller pieces in the mouth, it is combined with ________ that facilitate

As the food is broken into smaller pieces in the mouth, it is combined with ________ that facilitate

As the food is broken into smaller pieces in the mouth, it is combined with ________ that facilitates its movement down the esophagus.
A) chyme
B) amylase
C) pancreatic juices
D) gastric juices
E) saliva

...hello   185   1 Reply

venusky

What is a ring of skeletal muscle that regulates the movement of a bolus into the esophagus?

What is a ring of skeletal muscle that regulates the movement of a bolus into the esophagus?

What is a ring of skeletal muscle that regulates the movement of a bolus into the esophagus?
A) glottis
B) upper esophageal sphincter
C) epiglottis
D) lower esophageal sphincter
E) pyloric sphincter

...hello   247   1 Reply

venusky

Gastric reflux occurs when material flows backwards through which of the following structures?

Gastric reflux occurs when material flows backwards through which of the following structures?

Gastric reflux occurs when material flows backwards through which of the following structures?
A) glottis
B) lower esophageal sphincter
C) pyloric sphincter
D) epiglottis
E) upper esophageal sphincter

...hello   116   1 Reply

venusky

What is a mixture of food particles with gastric juice called?

What is a mixture of food particles with gastric juice called?

What is a mixture of food particles with gastric juice called?
A) saliva
B) fundus
C) bolus
D) gastric secretions
E) chyme

...hello   227   1 Reply

venusky

The flow of chyme from the stomach to the small intestine is physically regulated by the

The flow of chyme from the stomach to the small intestine is physically regulated by the

The flow of chyme from the stomach to the small intestine is physically regulated by the
A) gastroileal sphincter.
B) epiglottis.
C) pyloric sphincter.
D) lower esophageal sphincter.
E) glottis.

...hello   226   1 Reply

venusky

What are rugae? (Multiple Choice)

What are rugae? (Multiple Choice)

What are rugae?
A) folds in the small intestine that increase the surface area for absorption
B) folds in the large intestine that increase the surface area for absorption
C) folds in the stomach that can flatten to expand the stomach

...hello   252   1 Reply

venusky

What cells secrete pepsinogen into the lumen of the stomach?

What cells secrete pepsinogen into the lumen of the stomach?

What cells secrete pepsinogen into the lumen of the stomach?
A) goblet
B) chief
C) G
D) parietal
E) neck

...hello   164   1 Reply

venusky

What cells function to secrete hydrogen ions into the lumen of the stomach?

What cells function to secrete hydrogen ions into the lumen of the stomach?

What cells function to secrete hydrogen ions into the lumen of the stomach?
A) goblet
B) chief
C) parietal
D) G
E) neck

...hello   156   1 Reply

venusky

What do parietal cells secrete?

What do parietal cells secrete?

What do parietal cells secrete?
A) hydrogen ions only
B) pepsinogen only
C) intrinsic factor only
D) both hydrogen ions and pepsinogen
E) both hydrogen ions and intrinsic factor

...hello   187   1 Reply

venusky

What do neck cells of gastric pits secrete?

What do neck cells of gastric pits secrete?

What do neck cells of gastric pits secrete?
A) intrinsic factor
B) hydrogen ions
C) mucus
D) pepsinogen
E) gastrin

...hello   187   1 Reply

venusky

Which of the following is NOT a normal function of the high acidity of the stomach?

Which of the following is NOT a normal function of the high acidity of the stomach?

Which of the following is NOT a normal function of the high acidity of the stomach?
A) activate pepsin
B) destroy foodborne bacteria
C) denature proteins
D) protect against illness
E) activate vitamin B12

...hello   141   1 Reply

venusky

Once the chyme begins to enter the duodenum, it must first be ________ before any of the enzymes in

Once the chyme begins to enter the duodenum, it must first be ________ before any of the enzymes in

Once the chyme begins to enter the duodenum, it must first be ________ before any of the enzymes in the pancreatic juices can be activated.
A) phosphorylated
B) dehydrated
C) acidified
D) hydrated
E) deacidified

...hello   137   1 Reply

venusky

What protects the stomach wall from the acidic lumenal contents?

What protects the stomach wall from the acidic lumenal contents?

What protects the stomach wall from the acidic lumenal contents?
A) a layer of parietal cells
B) the presence of rugae
C) the gastric mucosal barrier
D) the gastric coat
E) a layer of adipose tissue lining the gastric mucosa

...hello   315   1 Reply

venusky

To increase the absorptive efficiency of the small intestine, the surface area of the mucosa is incr

To increase the absorptive efficiency of the small intestine, the surface area of the mucosa is incr

To increase the absorptive efficiency of the small intestine, the surface area of the mucosa is increased by the presence of folds in the wall called ________, and projections of the cell membrane called ________.
A) microvilli : villi
B) l

...hello   166   1 Reply

venusky

Which of the following is the correct order of the components of the small intestine, from stomach t

Which of the following is the correct order of the components of the small intestine, from stomach t

Which of the following is the correct order of the components of the small intestine, from stomach to colon?
A) jejunum, ileum duodenum
B) duodenum, ileum, jejunum
C) jejunum, duodenum, ileum
D) duodenum, jejunum, ileum
E) il

...hello   172   1 Reply

venusky

A lacteal is a ________ located in ________.

A lacteal is a ________ located in ________.

A lacteal is a ________ located in ________.
A) lymphatic vessel : villus
B) nerve : myenteric plexus
C) patch of immune tissue : submucosa
D) capillary : villus
E) nerve : submucosal plexus

...hello   209   1 Reply

venusky

What is the brush border?

What is the brush border?

What is the brush border?
A) villi from epithelial cells lining the stomach
B) villi from epithelial cells lining the small intestine
C) villi from parietal cells
D) microvilli from parietal cells
E) microvilli from epithelia

...hello   169   1 Reply

venusky

What do the secretory cells in the crypts of Lieberkühn secrete?

What do the secretory cells in the crypts of Lieberkühn secrete?

What do the secretory cells in the crypts of Lieberkühn secrete?
A) succus entericus
B) pancreatic juice
C) bile
D) gastric juice
E) intestinal juice

...hello   149   1 Reply

venusky