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4 years ago

Identify the process used to form the covalent peptide bonds that join amino acids into a polypeptide

Biology

1 answer:

muminat4 years ago

4 0

Answer:

Condensation

Explanation:

A single molecule of protein can have hundreds of amino acid units which are joined together by the process of condensation. The process involves combination of two amino acids to form a dipeptide molecule. The bond between the two amino acids is called a peptide bond. Continued condensation leads to the addition of more amino acids to a protein chain. A long chain known as a polypeptide results.

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The process is called transcription

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4 years ago

1. Which table correctly describes the functions of the cell structures listed *

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Answer:

Explanation:

As it's the only choice that has the chloroplasts right function (convert energy)

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3 years ago

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of a eukaryotic cell plays a major role in organizing the structures and activities of the cell. The cytoskeleton consists of th

dem82 [27]

Answer:

The difference between the microfilaments, intermediate filaments, and microtubules are stated below.

Explanation:

Microfilaments:

They are made up of two chains made up of monomeric globular proteins called actin. The chains are coiled around each other.
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Intermediate Filaments:

They form strands which are made up of fibrous proteins like keratin, vimentin, desmin.
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Microtubules:

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They have a diameter of about 25 nanometre.
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4 years ago

The BRCA-1 genes in humans encode proteins that have role in maintaining DNA stability. Mutation in this gene results in formati

hoa [83]

Answer:

tumor suppressor gene

Explanation:

A tumor suppressor gene is capable of modulating cellular processes during cell division and/or replication, thereby avoiding uncontrolled cell proliferation and tumor development. For example, the p53 gene is a tumor suppressor gene that encodes a protein (p53) which is well known to regulate critical cellular processes such as, for example, cell cycle arrest and programmed cell death (apoptosis). Moreover, breast cancer genes BRCA1 and BRCA2 are tumor suppressor genes that regulate the repair of damaged DNA through the Homologous recombination (HR) pathway. In consequence, mutations in BRCA1 and BRCA2 genes can increase the risk of developing breast cancer.

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3 years ago

Hell p please

Flauer [41]

Answer:

A. Body planes

1. Sagittal: cut along the lengthwise plane of the body. divides left and right parts.

2. Mid-sagittal: cut exactly down the median. divides left and right parts equally. (would cut vertically down the nose)

3. Coronal/frontal: divides the body into anterior and posterior parts

4. Transverse/horizontal:cut along the lengthwise plane. divides anterior and posterior. (coronal section)

B. Directional terms

1. Superior: toward the head end or upper part of a body structure. above. (AKA cranial or cephalad) The face is superior to the neck.

2. Inferior: away from the head end or toward the lower part of a structure or the body. (AKA caudal) The navel is inferior to the chin.

3. Anterior: toward or at the front of the body. (AKA ventral). The windpipe (trachea) is anterior to the esophagus.

5. Posterior: toward or at the backside of the body. (AKA dorsal). The heart is posterior to the sternum.

7. Medial: toward or at the midline of the body. The bridge of the nose is medial to the eyes.

8. Lateral:away from the midline of the body. The eyes are lateral to the nose.

9. Proximal: close to the origin of the body part or point of attachment of a limb.

10. Distal: farther from the origin of a body part or the point of attachment of a limb. the foot is distal to the knee.

11. Superficial: toward or at the body surface. (AKA external). The skin is superficial to the muscles.

12. Deep:away from the body surface (AKA internal). The intestines are deep to the spine.

C. Body cavities

1. Dorsal: consists of two subdivisions which are continuous with each other: cranial cavity and spinal cavity

2. Cranial: space inside the skull

3. Spinal: extends from cranial cavity almost to the end of the vertebral column. protected by the vertebrae

4. Thoracic: separated from rest of ventral cavity by the diaphragm. contain heart, lungs, etc that are protected by the rib cage

5. Abdominal: contains stomach, liver, intestines, etc

6. Pelvic: contains reproductive organs, bladder, and rectum

D. Quadrants :

1. Right upper quadrant (RUQ): Lobe of the liver is located and gallbladder. contains liver, gallbladder, small and large intestines

2. Left upper quadrant (LUQ): Main portion of the stomach. contains stomach, pancreas, spleen, small and large intestines

3. Right lower quadrant (RLQ): The Cecum, appendix, and part of the small intestine are located. contains small and large intestines, appendix, female ovary and uterus, bladder.

4. Left lower quadrant (LLQ): Descending colon. Contains small and large intestines, female ovary and uterus, bladder

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