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Home Q & A Board Biology-Related Homework Help Cell Biology
  
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When an F1 plant undergoes meiosis, what gamete types will it produce, and in what proportions? Use ...
When an F1 plant undergoes meiosis, what gamete types will it produce, and in what proportions? Use ...
When an F1 plant undergoes meiosis, what gamete types will it produce, and in what proportions?
Use your understanding of Mendel’s law (or principle) of segregation to label each gamete possibility as “correct” or “incorrect.”
sportspro05   134   1 Reply
A month ago
Onion Cell identify cells
Onion Cell identify cells
When DNA condenses in prophase can the stained chromosomes be visible with a light microscope. Because the phases are a continuous sequence, late anaphase looks like early telophase. Interphase is characteristically a diagram of a normal cell. The nu
rachelle17   88   4 Replies
A month ago
The tip cells of a onion root are observed. Of these cells, 48 are in interphase, 10 are in ...
The tip cells of a onion root are observed. Of these cells, 48 are in interphase, 10 are in ...
The tip cells of a onion root are observed. Of these cells, 48 are in interphase, 10 are in prophase, 14 are in metaphase, 9 are in anaphase, and 19 are in telophase. If a cell undergoes mitosis in 13 hours, how long does the average growing onion ce
rachelle17   57   1 Reply
A month ago
The depletion of O2 in the muscles of an individual that has exercised for a long period of time is ...
The depletion of O2 in the muscles of an individual that has exercised for a long period of time is ...
The depletion of O2 in the muscles of an individual that has exercised for a long period of time is known as ________.
glisten   69   2 Replies
A month ago
A muscle will ________ if levels of calcium and potassium decrease in the blood.
A muscle will ________ if levels of calcium and potassium decrease in the blood.
A muscle will ________ if levels of calcium and potassium decrease in the blood.
glisten   64   2 Replies
A month ago
Which muscle cells are designed for endurance?A) hemoglobinB) fast-twitch cellsC) myoglobinD) ...
Which muscle cells are designed for endurance?A) hemoglobinB) fast-twitch cellsC) myoglobinD) ...
Which muscle cells are designed for endurance?
A) hemoglobin
B) fast-twitch cells
C) myoglobin
D) slow-twitch cells
glisten   71   2 Replies
A month ago
Why is ATP needed for muscle contraction?A) It causes calcium to bind to troponin.B) Myosin must ...
Why is ATP needed for muscle contraction?A) It causes calcium to bind to troponin.B) Myosin must ...
Why is ATP needed for muscle contraction?
A) It causes calcium to bind to troponin.
B) Myosin must contact the actin filament and move to pull it toward the midline of the sarcomere.
C) It causes tropomyosin to slide off the myosin-bin
glisten   51   2 Replies
A month ago
Which of these cell types can be described as muscle cells that contract rapidly, are rich in ...
Which of these cell types can be described as muscle cells that contract rapidly, are rich in ...
Which of these cell types can be described as muscle cells that contract rapidly, are rich in glycogen deposits, and depend on anaerobic respiration to produce ATP?
A) slow-twitch cells
B) fast-twitch cells
C) hemoglobin
D) myoglo
glisten   69   2 Replies
A month ago
When a muscle is stimulated prior to full relaxation of a previous contraction and the second ...
When a muscle is stimulated prior to full relaxation of a previous contraction and the second ...
When a muscle is stimulated prior to full relaxation of a previous contraction and the second stimulus is added to the first contraction, this phenomenon is referred to as ________.
A) fatigue
B) tetanus
C) summation
D) twitch
glisten   51   2 Replies
A month ago
The sarcoplasmic reticulum stores ions that are necessary for skeletal muscle contractions. Which of ...
The sarcoplasmic reticulum stores ions that are necessary for skeletal muscle contractions. Which of ...
The sarcoplasmic reticulum stores ions that are necessary for skeletal muscle contractions. Which of the following ions does it store?
A) iron
B) sodium
C) magnesium
D) calcium
glisten   58   2 Replies
A month ago
Which component of a muscle does the calcium ion combine with to allow a contraction to occur?A) T ...
Which component of a muscle does the calcium ion combine with to allow a contraction to occur?A) T ...
Which component of a muscle does the calcium ion combine with to allow a contraction to occur?
A) T tubule
B) myosin head
C) actin
D) troponin
glisten   58   2 Replies
A month ago
Overuse, misuse, and age are some of the factors that contribute to excessive stress on a tendon, ...
Overuse, misuse, and age are some of the factors that contribute to excessive stress on a tendon, ...
Overuse, misuse, and age are some of the factors that contribute to excessive stress on a tendon, causing inflammation known as ________.
A) spasms
B) tetanus
C) bursitis
D) tendinitis
glisten   48   2 Replies
A month ago
In metamorphism, after a rock is heated, it may or may not develop a new texture. it will be ...
In metamorphism, after a rock is heated, it may or may not develop a new texture. it will be ...
In metamorphism, after a rock is heated,
it may or may not develop a new texture.
it will be deformed.
it may or may not be deformed and it may or may not develop a new texture.
it will be deformed and it may or may not develop a
grashonda   32   1 Reply
A month ago
What canals connect lacunae together?A) canaliculiB) central canalsC) perforating (Volkmann's) ...
What canals connect lacunae together?A) canaliculiB) central canalsC) perforating (Volkmann's) ...
What canals connect lacunae together?
A) canaliculi
B) central canals
C) perforating (Volkmann's) canals
D) central (Haversian) canals
Cali Fornia   120   3 Replies
Medium
A month ago
Were you able to see the nucleus in the elodea(water plant) cell?
Were you able to see the nucleus in the elodea(water plant) cell?
c.near the cell wall 
b. at the center of the cell   
d. near the top of the cell   
a. outside the cell
Joelleskalembe   51   1 Reply
A month ago
Are egg and sperm cells considered embryonic cells?
Are egg and sperm cells considered embryonic cells?
Embryonic cells.. are these basically just egg an sperm cells?
trishasales714   49   1 Reply
1 months ago
Organisms that can maintain a fairly consistent internal body temperature through metabolic ...
Organisms that can maintain a fairly consistent internal body temperature through metabolic ...
Organisms that can maintain a fairly consistent internal body temperature through metabolic reactions are known as ________.
tyressjones   88   2 Replies
1 months ago
The ability to maintain an internal environment within specific ranges is referred to as ________.
The ability to maintain an internal environment within specific ranges is referred to as ________.
The ability to maintain an internal environment within specific ranges is referred to as ________.
tyressjones   72   2 Replies
1 months ago
The blood vessels that provide nourishment for the skin cells are located in the dermis only. True ...
The blood vessels that provide nourishment for the skin cells are located in the dermis only. True ...
The blood vessels that provide nourishment for the skin cells are located in the dermis only. True or False?
tyressjones   120   2 Replies
1 months ago
The outer layer of the skin is the dermis. True or False?
The outer layer of the skin is the dermis. True or False?
The outer layer of the skin is the dermis. True or False?
tyressjones   65   2 Replies
1 months ago
The dermis of the skin is composed of stratified epithelium. True or False?
The dermis of the skin is composed of stratified epithelium. True or False?
The dermis of the skin is composed of stratified epithelium. True or False?
tyressjones   56   2 Replies
1 months ago
Glial cells provide structural and chemical support to neurons. True or False?
Glial cells provide structural and chemical support to neurons. True or False?
Glial cells provide structural and chemical support to neurons. True or False?
tyressjones   89   2 Replies
1 months ago
Connective tissues are made up of cells surrounded by an extracellular matrix, the consistency of ...
Connective tissues are made up of cells surrounded by an extracellular matrix, the consistency of ...
Connective tissues are made up of cells surrounded by an extracellular matrix, the consistency of which can vary from a liquid to a solid. True or False?
tyressjones   67   2 Replies
1 months ago
The basement membrane of epithelial tissues produces a waterproof barrier of cells to protect the ...
The basement membrane of epithelial tissues produces a waterproof barrier of cells to protect the ...
The basement membrane of epithelial tissues produces a waterproof barrier of cells to protect the tissue above it. True or False?
tyressjones   58   2 Replies
1 months ago
The extracellular matrix in dense connective tissue contains large amounts of calcium, which causes ...
The extracellular matrix in dense connective tissue contains large amounts of calcium, which causes ...
The extracellular matrix in dense connective tissue contains large amounts of calcium, which causes the tissue to harden and become solid. True or False?
tyressjones   70   2 Replies
1 months ago
Hormones are secreted by exocrine glands directly into a body cavity or onto a body surface, rather ...
Hormones are secreted by exocrine glands directly into a body cavity or onto a body surface, rather ...
Hormones are secreted by exocrine glands directly into a body cavity or onto a body surface, rather than being transported by the blood. True or False?
tyressjones   49   2 Replies
1 months ago
Cardiac muscle requires input from the nervous system to contract. True or False?
Cardiac muscle requires input from the nervous system to contract. True or False?
Cardiac muscle requires input from the nervous system to contract. True or False?
tyressjones   91   2 Replies
1 months ago
The integumentary system plays a role in temperature regulation. True or False?
The integumentary system plays a role in temperature regulation. True or False?
The integumentary system plays a role in temperature regulation. True or False?
tyressjones   58   2 Replies
1 months ago
When an animal's body temperature drops below normal, the body responds to raise the temperature ...
When an animal's body temperature drops below normal, the body responds to raise the temperature ...
When an animal's body temperature drops below normal, the body responds to raise the temperature using positive feedback loops. True or False?
tyressjones   65   2 Replies
1 months ago
Maintaining homeostasis requires the coordinated efforts of multiple negative feedback loops. True ...
Maintaining homeostasis requires the coordinated efforts of multiple negative feedback loops. True ...
Maintaining homeostasis requires the coordinated efforts of multiple negative feedback loops. True or False?
tyressjones   92   2 Replies
1 months ago
Most of the homeostatic functions in the body are regulated by positive feedback loops. True or ...
Most of the homeostatic functions in the body are regulated by positive feedback loops. True or ...
Most of the homeostatic functions in the body are regulated by positive feedback loops. True or False?
tyressjones   43   2 Replies
1 months ago
Due to the freezing temperatures of the deep ocean, all deep-sea fish must be endotherms. True or ...
Due to the freezing temperatures of the deep ocean, all deep-sea fish must be endotherms. True or ...
Due to the freezing temperatures of the deep ocean, all deep-sea fish must be endotherms. True or False?
tyressjones   80   2 Replies
1 months ago
The maintenance of internal conditions within narrow ranges is known as homeostasis. True or False?
The maintenance of internal conditions within narrow ranges is known as homeostasis. True or False?
The maintenance of internal conditions within narrow ranges is known as homeostasis. True or False?
tyressjones   59   2 Replies
1 months ago
Which tissue type is most suited to areas of the body in which the cells need continuous replacement ...
Which tissue type is most suited to areas of the body in which the cells need continuous replacement ...
Which tissue type is most suited to areas of the body in which the cells need continuous replacement to repair damage from daily wear and tear?
A) Epithelial
B) Connective
C) Nerve
D) Muscle
tyressjones   60   2 Replies
1 months ago
In addition to the nervous system, which vertebrate organ system controls physiological processes in ...
In addition to the nervous system, which vertebrate organ system controls physiological processes in ...
In addition to the nervous system, which vertebrate organ system controls physiological processes in animals?
A) Reproductive
B) Skeletal
C) Muscular
D) Endocrine
E) Respiratory
tyressjones   62   2 Replies
1 months ago
The ________ system is composed of the kidneys, ureters, bladder, and urethra.A) digestiveB) ...
The ________ system is composed of the kidneys, ureters, bladder, and urethra.A) digestiveB) ...
The ________ system is composed of the kidneys, ureters, bladder, and urethra.
A) digestive
B) reproductive
C) respiratory
D) circulatory
E) urinary
tyressjones   66   2 Replies
1 months ago
Together, the stomach, intestines, mouth, and esophagus form a(n)A) organ.B) tissue.C) cell.D) organ ...
Together, the stomach, intestines, mouth, and esophagus form a(n)A) organ.B) tissue.C) cell.D) organ ...
Together, the stomach, intestines, mouth, and esophagus form a(n)
A) organ.
B) tissue.
C) cell.
D) organ system.
E) ectotherm.
tyressjones   71   2 Replies
1 months ago
The skin is an example of a(n)A) cell.B) tissue.C) organ.D) organ system.E) undifferentiated mass.
The skin is an example of a(n)A) cell.B) tissue.C) organ.D) organ system.E) undifferentiated mass.
The skin is an example of a(n)
A) cell.
B) tissue.
C) organ.
D) organ system.
E) undifferentiated mass.
tyressjones   64   2 Replies
1 months ago
Hair follicles are a variation of ________ tissue.A) epithelialB) dense connectiveC) muscleD) loose ...
Hair follicles are a variation of ________ tissue.A) epithelialB) dense connectiveC) muscleD) loose ...
Hair follicles are a variation of ________ tissue.
A) epithelial
B) dense connective
C) muscle
D) loose connective
E) nerve
tyressjones   41   2 Replies
1 months ago
The retina of the eye responds to light, converting it into electrical impulses. The retina is made ...
The retina of the eye responds to light, converting it into electrical impulses. The retina is made ...
The retina of the eye responds to light, converting it into electrical impulses. The retina is made up of
A) bone.
B) cartilage.
C) smooth muscle.
D) neurons.
E) simple epithelium.
tyressjones   72   2 Replies
1 months ago
  
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